5 Performing LUN Manager operations. HP XP24000/20000
HP XP24000/20000 LUN Manager is a software that allows you to configure and manage Logical Unit Numbers (LUNs) on XP24000 and XP20000 Disk Arrays. You can use it to define I/O paths from hosts to logical volumes, reconfigure LUs while the storage system is online to accommodate system configuration changes and optimize storage system performance, and apply security policies to logical volumes to protect data from unauthorized access.
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5 Performing LUN Manager operations
This chapter provides instructions for performing LUN Manager operations.
•
Launching LUN Manager for fibre channel operations
•
Defining fibre channel LU paths
•
Registering hosts in host group
•
Defining LU paths by associating host groups to logical
•
Setting fibre channel authentication
•
Changing the fibre channel LU path settings
•
Configuring fibre channel ports
•
Viewing a list of concatenated parity groups
•
Deleting LU paths
•
Defining and viewing alternate paths
•
Using LUN security
•
Configuring the storage system for using RAID Manager
•
Setting UUID
•
Clearing the setting of UUID
Launching LUN Manager for fibre channel operations
To start LUN Manager:
1.
Start the Web browser.
2.
Enter the following URL in the Web browser and then press Enter.
The Storage Device list opens.
http://IP-address-of-main-SVP (Web server)/cgi-bin/utility/sjc0000.cgi
If you are unsure of the IP address of the main SVP (Web server), ask the system administrator.
3.
In the Storage Device list, click the SVP to long on.
The Storage Navigator login dialog box opens.
4.
In the Storage Navigator login dialog box, enter the user name and password and then click
OK.
The Storage Navigator main window opens.
5.
On the menu bar, click Go, LUN Manager, and then LUN Manager.
The LUN Manager window opens.
You must change the mode of the Storage Navigator main window to the Modify mode to make various settings with LUN Manager. When the background color of the icon on the right of the window is light yellow , the window is in Modify mode. When the background color is gray
, the window is in View mode. If you click the gray icon when the Unlocked icon is displayed, the icon changes to the yellow icon and the mode changes to the Modify mode.
26 Performing LUN Manager operations
Defining fibre channel LU paths
If you are configuring a fibre channel environment, do the following:
1.
Find worldwide names (WWNs) of host bus adapters connected to the fibre channel ports.
See Finding WWNs
.
2.
Create host groups. See Creating Host Groups.
3.
Group open-system hosts by host groups. See Registering Hosts in Host Groups.
4.
Associate host groups with LUs. See Defining LU paths by associating host groups to logical volumes.
Finding WWNs
If you are configuring a fibre channel environment, you must verify that the fibre adapters and the fibre-channel device drivers are installed on the open-system hosts. Next, you must also find the worldwide name (WWN) of the host bus adapter that is used in each open-system host. The WWN is a unique identifier for a host bus adapter in an open-system host, consisting of 16 hexadecimal digits.
This section describes how to find the WWN of a host. We recommend you make a record of
WWNs of the hosts in your system, because you will need to enter WWNs in LUN Manager dialog boxes to specify the hosts used in your system.
Finding WWN for Windows
To find the WWN in a Windows environment with an Emulex Mini-Port driver:
1.
Verify that the fibre adapters and the fibre-channel device drivers are installed.
2.
Log in to the Windows 2000 host with administrator access.
3.
Go to the LightPulse Utility to open the LightPulse Utility window. See
.
a.
Go to the Start menu, select Find and choose the Files and Folders option. The Find dialog box opens.
b.
On the Find dialog box in the Named text field enter lputilnt.exe. In the Look in list, choose the hard drive that contains the Emulex mini-port driver.
c.
Choose Find Now to search for the LightPulse utility.
d.
Select lputilnt.exe from the Find: Files named list, then press Enter.
4.
On the LightPulse Utility window, verify that the installed adapter(s) is/are displayed in the tree.
5.
In the Category list, choose the Configuration Data option.
6.
In the Region list, choose the 16 World-Wide Name option. The WWN of the selected adapter is displayed in the list on the right of the window.
Defining fibre channel LU paths 27
Figure 21 LightPulse Utility Window
Finding WWN for Solaris
To find the WWN in a Sun Solaris environment.
1.
Verify that the fibre adapters and the fibre-channel device drivers are installed.
2.
Log in to the Sun Solaris host with root access.
3.
Type dmesg |grep Fibre to list the installed fibre-channel device or devices and their
WWNs.
4.
Verify that the fibre-channel adapters listed are correct, and record the listed WWNs.
Figure 22 Sun Solaris Worldwide Name
Finding WWN for AIX, IRIX, or Sequent
To find the WWN in an IBM AIX®, SGI Irix®, or Sequent® environment, use the fibre switch that is connected to the host. The method of finding the WWN of the connected server on each port using the fibre switch depends on the type of switch. For instructions on finding the WWN, refer to the manual of the corresponding switch.
Finding WWN for HP-UX®
To find the WWN in an HP-UX environment:
1.
Verify that the fibre adapters and the fibre channel device drivers are installed. (See
.)
2.
Log in to the HP-UX host with root access.
3.
At the command line prompt, type: /usr/sbin/ioscan –fnC lan
This lists the attached fibre channel devices and their names.
28 Performing LUN Manager operations
4.
Record the fibre channel device file name (for example, /dev/fcms0).
5.
Use the fcmsutil command along with the fibre channel device name to list the WWN for that fibre channel device.
For example, to list the WWN for the device with the device name /dev/fcms0, type:
/opt/fcms/bin/fcmsutil /dev/fcms0
When the A5158 fibre channel adapter is used, at the command line prompt enter
/usr/sbin/ioscan -fnC fc for the device name.
6.
Record the fibre channel device file name (for example, /dev/td0).
When the A5158 fibre channel adapter is used, you would list the WWN for the device with the device file name as follows:
/opt/fcms/bin/fcmsutil <device file name>
7.
Record the WWN and repeat the above steps for each fibre channel device that you want to use.
Figure 23 HP-UX Worldwide Name
Creating host groups
You can connect multiple server hosts of different platforms to one port of your storage system.
When configuring your system, you must group server hosts connected to the storage system by host groups. For example, if HP-UX hosts and Windows hosts are connected to a port, you must create one host group for HP-UX hosts and also create another host group for Windows hosts.
Next, you must register HP-UX hosts to the corresponding host group and also register Windows hosts to the other host group.
To create a host group:
Defining fibre channel LU paths 29
1.
Start LUN Manager and display the LUN Manager window.
2.
Right-click the port for which you want to create a host group and select Add New Host Group.
The Add New Host Group dialog box opens. If you right-click an initiator port, you will be unable to select Add New Host Group. You cannot create host groups for initiator ports.
3.
Enter the host group name in the Group Name box. It is convenient if you name each host group after the host platform. A host group name can consist of up to 32 ASCII characters
(letters, numerals, and symbols). However, you cannot use the following symbols for host group names:
\ / : , ; * ? “ < > |
You cannot use space characters for the first and the last characters in host group names.
Host group names are case-sensitive. For example, the host group names wnt and Wnt represent different host groups.
4.
Select a host mode from the Host Mode list. When selecting a host mode, you must consider the platform and some other factors.
CAUTION: Do not select any undocumented Host Mode values. These values appear as
Reserve in the list. If selected, results can be unpredictable. To use a reserved SOM, contact
HP.
5.
If necessary, click Option and then select the host mode option or options appropriate for your storage system. The dialog box expands to show a list of host mode options in numerical order.
6.
Click OK.
7.
If a message appears, click OK. The host group name and the host mode appear in blue.
8.
In the LUN Manager window, click Apply.
A message appears, asking whether to apply the setting to the storage system.
Figure 24 Add New Host Group Dialog Box
Table 1 Host Modes for Host Groups
Host mode
00 Standard
01 VMware
03 HP
05 OpenVMS
When to select this mode
When registering Red Hat Linux server hosts or IRIX server hosts in the host group
When registering VMware server hosts in the host group
1
When registering HP-UX server hosts in the host group
When registering OpenVMS server hosts in the host group
30 Performing LUN Manager operations
Table 1 Host Modes for Host Groups (continued)
Host mode
07 Tru64
09 Solaris
0A NetWare
0C Windows
When to select this mode
When registering Tru64 server hosts in the host group
When registering Solaris server hosts in the host group
When registering NetWare server hosts in the host group
When registering Windows server hosts in the host group
2
0F AIX
21 VMware Extension
2C Windows Extension
When registering AIX server hosts in the host group
When registering VMware server hosts in the host group
1
When registering Windows server hosts in the host group
2
4C External Storage When registering another storage system in the host group for mapping by using
HP StorageWorks XP External Storage Software
If you use this mode when the XP24000/XP20000 storage system is being used as an external storage of another XP24000/XP20000 storage system, the data of the MF-VOL in the storage system can be transferred. See the emulation types below for the MF-VOL.
The data of the MF-VOL cannot be transferred when the storage systems are connected with the host mode other than 4C External Storage, and the message to require formatting is displayed after the mapping.
The following device types can be transferred:.
3390-3A,3380-KA,3380-3A,3390-9A,3390-LA.
1
If you register VMware server hosts in a host group, you need to ensure that the host mode of the host group is 01
VMware or 21 VMware Extension.
If the host mode of a host group is 01 VMware and an LU path is defined between the host group and a logical volume, you cannot combine the logical volume with other logical volumes to form a LUSE volume (that is, an expanded LU).
If the host mode of a host group is 21 VMware Extension and an LU path is defined between the host group and a logical volume, the logical volume can be combined with other logical volumes to form a LUSE volume (i.e., an expanded LU).
2
If you plan to expand LUs by using LUSE in the future, set the host mode 21 VMware Extension.
For detailed information about LUSE, see the HP StorageWorks XP24000/XP20000 LUN Expansion User Guide.
If you register Windows server hosts in a host group, you need to ensure that the host mode of the host group is 0C
Windows or 2C Windows Extension.
If the host mode of a host group is 0C Windows and an LU path is defined between the host group and a logical volume, the logical volume cannot be combined with other logical volumes to form a LUSE volume (i.e., an expanded LU).
If the host mode of a host group is 2C Windows Extension and an LU path is defined between the host group and a logical volume, the logical volume can be combined with other logical volumes to form a LUSE volume (i.e., an expanded
LU). If you plan to expand LUs by using LUSE in the future, set the host mode 2C Windows Extension.
If you plan to expand LUs using LUSE with Windows virtual host on VMWare recognizing the LU by the Raw Device
Mapping method, set the host mode 2C Windows Extension. If you do not set the host mode 2C Windows Extension, change the host most to 2C. Before changing the host mode, back up the LUSE volume. After changing the mode, restore the LUSE volume.
For detailed information about LUSE, see the HP StorageWorks XP24000/XP20000 LUN Expansion User Guide.
Defining fibre channel LU paths 31
NOTE:
•
If Windows server hosts are registered in a host group, ensure that the host mode of the host group is 0C Windows or 2C Windows Extension.
If the host mode of a host group is 0C Windows and an LU path is defined between the host group and a logical volume, the logical volume cannot be combined with other logical volumes to form a LUSE volume (that is, an expanded LU).
If the host mode of a host group is 2C Windows Extension and an LU path is defined between the host group and a logical volume, the logical volume can be combined with other logical volumes to form a LUSE volume (that is, an expanded LU). If you plan to expand LUs by using
LUSE in the future, set the host mode 2C Windows Extension.
•
If VMware server hosts are registered in a host group, ensure that the host mode of the host group is 01 VMware or 21 VMware Extension.
If the host mode of a host group is 01 VMware and an LU path is defined between the host group and a logical volume, the logical volume cannot be combined with other logical volumes to form a LUSE volume (that is, an expanded LU).
If the host mode of a host group is 21 VMware Extension and an LU path is defined between the host group and a logical volume, the logical volume can be combined with other logical volumes to form a LUSE volume (that is, an expanded LU). If you plan to expand LUs by using
LUSE in the future, set the host mode 21 VMware Extension.
•
If you plan to expand LUs by using LUSE in case of Windows virtual host on VMware recognizing LU by Raw Device Mapping (RDM) method, set the host mode 2C Windows
Extension. If the host mode 2C Windows Extension is not set, change the host mode to 2C.
Before changing the host mode, back up the LUSE volume. After changing the mode, restore the LUSE volume.
•
Besides the host modes mentioned above, the Host Mode list displays the Reserve host modes.
Please do not select any Reserve host mode without assistance from technical support.
Table 2 Host Mode Options
No.
2
6
Host mode options
VERITAS Database
Edition/ Advanced
Cluster
TPRLO
When to select this option
When VERITAS Database Edition/Advanced Cluster for Real Application Clusters or VERITAS Cluster Server 4.0 or later (I/O fencing function) is used
7
12
Automatic recognition function of LUN
No display for ghost
LUN
When all the following conditions are satisfied:
•
The host mode 0C Windows or 2C Windows Extension is used
• The Emulex host bus adapter is used
• The mini-port driver is used
•
TPRLO=2 is specified for the mini-port driver parameter of the host bus adapter
When all the following conditions are satisfied:
•
The host mode 00 Standard or 09 Solaris is used
• SUN StorEdge SAN Foundation Software Version 4.2 or better is used
• You want to automate recognition of increase and decrease of devices when genuine SUN HBA is connected
When all the following conditions are satisfied:
• The host mode 08 HP is used
32 Performing LUN Manager operations
Table 2 Host Mode Options (continued)
No.
Host mode options When to select this option
•
You want to suppress creation of device files for devices to which paths are not defined.
13
1
14
SIM report at link failure When you want to be informed by SIM (service information message) that the number of link failures detected between ports exceeds the threshold
HP TruCluster with XP
Continuous Access function
When all the following conditions are satisfied:
•
The host mode 07 Tru64 is used
• You want to use TruCluster to set a cluster to each of P-VOL and S-VOL for
XP Continuous Access or HP StorageWorks XP Continuous Access Journal
Software.
15
22
23
1
33
34
39
40
41
42
43
48
HACMP
Veritas Cluster Server When Veritas Cluster Server is used.
REC Command Support When you want to shorten the recovery time on the host side if the data transfer failed.
Set/Report Device
Identifier enable
When all the following conditions are satisfied:
•
The host mode 03 HP or 05 OpenVMS
2 is used.
• You want to enable commands to assign a nickname of the device.
•
You want to set UUID to identify a logical volume from the host
UUID Option
When all the following conditions are satisfied:
• The host mode 0F AIX is used
•
HACMP 5.1 Version 5.1.0.4 or later, HACMP4.5 Version 4.5.0.13 or later, or HACMP5.2 or later is used
Change the nexus specified in the SCSI
Target Reset
V-Vol expansion
When all the following conditions are satisfied:
•
The host mode 05 OpenVMS or 07 Tru64 is used
• You want to set UUID to identify a logical volume from the host.
In case that you want to control the following ranges per host group when receiving Target Reset:
•
Range of job resettings
• Range of UAs (Unit Attentions) defined
When all the following conditions are satisfied:
• The host mode 0C Windows or 2C Windows Extension is used
•
You want to automate recognition of the TP-VOL capacity after increasing the TP-VOL capacity
Prioritized device recognition command
When you want to execute commands to recognize the device preferentially.
Prevent OHUB PCI retry When IBM Z10 Linux is used.
Queue Full response
XP External Storage
Access Manager Svol
Read Option
To make the storage system return a “queue full” response to the host when the command queue is full.
When you do not want to generate the failover from MCU to RCU, and when the applications that issue the Read commands more than the threshold to S-VOL of the pair made with XP External Storage Access Manager are performed.
Defining fibre channel LU paths 33
Table 2 Host Mode Options (continued)
No.
49
Host mode options When to select this option
BB Credit Set Up Option
1
3, 4
In XP Continuous Access and in cases where a long distance between M and
R (approximately 100km) and a Switch is not used and in other cases, if the number of BB Credits controlling the amount of transfer data on Fibre must be tuned.
Use by combining with host mode option 50.
50 BB Credit Set Up Option
2
3, 4
In XP Continuous Access and in cases where a long distance between M and
R (approximately 100km) and a Switch is not used and in other cases, if the number of BB Credits controlling the amount of transfer data on Fibre must be tuned.
Use by combining with host mode option 49.
51
54
Round Trip Set Up
Option
4
Support Option for the
EXTENDED COPY command
In cases where a long distance between M and R (approximately 100km) and a Switch is not used and in other cases, and if the response time of host I/O of XP Continuous Access must be tuned.
When the VAAI (vStorage API for Array Integration) function of VMware
ESX/ESXi 4.1 is used.
57 HAM response change When you want to change the response content to the server in the configuration in which XP External Storage Access Manager is being used.
60 LUN0 Change Guard When HP-UX 11.31 is used, and when you want to prevent adding or deleting of LUN0.
1
Configure these host mode options only when you are requested to do so.
2
Set UUID when you set a host mode option 33 and the host mode 05 OpenVMS is used.
3
For using the function of increasing the number of BB Credits, the setting of both the options, host mode options 49 and
50, must be performed.
4
Host mode options 49, 50, and 51 are enabled only for 8US package.
Registering Hosts in Host Groups
To set LU paths, you must register hosts in host groups. For example, if HP-UX hosts and Widows hosts are connected to a port, you must register HP-UX hosts and Windows hosts separately in two different host groups.
When registering a host, you are requested to specify the WWN of the host bus adapter. If you are unsure of WWNs of your host bus adapters, see
.
When you register hosts in multiple host groups, you must set the security switch (LUN security) to
ON. When you set the security switch to ON, you must specify the WWN of the host bus adapter.
When registering a host, you can assign a nickname to the host bus adapter. If you assign a nickname, you will be able to easily identify each host bus adapter in the LUN Manager window.
Although WWNs are also used to identify each host bus adapter, the nickname that you assign will be more helpful because you can name host bus adapters after the host installation site or the host owners.
34 Performing LUN Manager operations
NOTE:
•
A nickname can consist of up to 32 ASCII characters (letters, numerals, and symbols). However, you cannot use the following characters for nicknames:
\ / : , ; * ? " < > |
•
You cannot use space characters for the first and the last characters in nicknames.
•
Nicknames are case-sensitive. For example, hp and HP are different nicknames.
To register hosts in a host group in a Fibre Channel environment:
1.
Start LUN Manager and display the LUN Manager window.
2.
If the desired host has ever been connected via a cable to another port in the storage system, take the following steps: a.
Locate the Port list in the upper-right corner of the WWN list. Use this list to select the port to which the desired host is connected.
b.
Select the desired host bus adapter from the WWN list. Next, select a host group from the tree and then click Add WWN.
If you are using Windows, you can drag the desired host bus adapter from the WWN list to the host group in the tree. To drag two or more host bus adapters, see the HP
StorageWorks XP24000/XP20000 Remote Web Console User Guide to learn how to drag multiple objects.
c.
To assign a nickname to the host bus adapter, enter the nickname in the Name box in the Add New WWN dialog box
(page 36) , and then click OK.
If two or more host bus adapters are selected, the Add New WWN dialog boxes
appear—one after another to let you assign a nickname to each of the selected
HBAs. If you do not need to assign nicknames to HBAs, you can select the option The remaining WWNs do not need names and then click OK. If this option is selected, the
Add New WWN dialog box
will not appear prompting you to assign nicknames.
If the desired host has never been connected via a cable to any port in the storage system, take the following steps: a.
In the tree, right-click the host group and then select Add New WWN from the pop-up menu. The Add New WWN dialog box
You cannot add WWNs to host groups for initiator ports.
b.
Right-click the arrow on the right of the WWN list, and then select the desired host bus adapter from the list. If the list does not include the desired host bus adapter, enter the desired WWN in the WWN list.
c.
If necessary, enter a nickname for the host bus adapter.
d.
Click OK to close the Add New WWN dialog box. If a message appears, click OK.
The specified WWN and nickname appear below the selected host group.
3.
Click Apply in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
4.
Click the OK button to close the message.
The settings are applied to the storage system and the specified host is registered in the host group.
Registering Hosts in Host Groups 35
Figure 25 Add New WWN Dialog Box (When Registering a Host that Has Previously been Connected to the Storage System)
Figure 26 Add New WWN Dialog Box (When Registering a Host that Has Never been Connected to the Storage System)
NOTE: If the WWN list (located near the lower-left corner of the window) includes a host that you want to register, you can register the host by dragging the host from the WWN list to the desired host group in the tree.
Defining LU Paths by Associating Host Groups to Logical Volumes
Use LUN Manager to define LU paths by associating host groups with logical volumes. For example, if you associate a host group consisting of three hosts with logical volumes, LU paths are defined between the three hosts and the logical volumes.
NOTE: When you use a logical volume larger than 2 TB, whether the host can access a logical volume larger than 2 TB depends on the operating system of the host.
The following operating systems support a logical volume that is larger than 2 TB.
•
AIX 5.2 TL08 or later
•
AIX 5.3 TL04 or later
•
Windows Server 2003 SP1 or later
•
Red Hat Enterprise Linux AS 4 Update 1 or later
If you use other operating system than these, make sure that a logical volume is not larger than 2
TB. For information about the maximum value of a logical volume capacity supported by your operating system, contact the vendor of your operating system.
To define LU paths:
36 Performing LUN Manager operations
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, select a host group.
3.
From the CU list above the LDEV list, select a CU number.
The LDEV list displays LDEVs in the specified CU image.
4.
Select a logical volume from the LDEV list. Next, from the LU Path list, select LUNs indicated by the icon (this icon indicates a LUN to which no LU path is defined). Next, click the Add
LU Path button.
A message appears displaying information about LU paths to be defined (
If you are using Windows, you can drag a logical volume from the LDEV list to a LUN ( ) in the LU Path list. To drag more than one logical volume, see the HP StorageWorks
XP24000/XP20000 Remote Web Console User Guide.
When you use the LU Path list, you can use the CU list to switch between CU images.
5.
Click OK to close the message.
The settings are reflected in the LU Path list, but not applied to the storage system yet.
6.
Click Apply in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The settings are applied to the storage system and the LU paths are defined.
Figure 27 Information about LU Paths to be Defined (in Fibre Channel Environment)
Setting Fibre Channel Authentication
When configuring a Fibre Channel environment, you can use the Authentication window to set the user authentication on host groups, Fibre Channel ports, and Fibre Channel switches of the storage system.
This section describes the following operations on host groups, Fibre Channel ports, and Fibre
Channel switches for user authentication:
•
Settings and the connection results in authentication of hosts, see
.
•
Settings and the connection results in authentication of Fibre Channel switches (see
)
•
Specifying whether to enable or disable the authentication of hosts in a host group, see
.
•
Registering user information for hosts on a host group, see
•
Changing user information for hosts, see
Setting Fibre Channel Authentication 37
•
Deleting user information for hosts, see
.
•
Specifying user information for host groups, when performing mutual authentication, see
.
•
Clearing user information for host groups, when performing mutual authentication, see
.
•
Specifying the information for Fibre Channel port, see
•
Registering user information on a Fibre Channel port, see
•
Registering user information on a Fibre Channel switch, see
.
•
Clearing user information for a Fibre Channel switch, see
•
Specifying an authentication mode of Fibre Channel switch, see
.
•
Specifying whether a Fibre Channel switch can perform authentication, see
NOTE: The hosts to be connected also have to be configured for authentication by host groups
(and for authentication of host groups by the host, if required). For details on how to configure the host for CHAP authentication, see the documentation of the operating system and Fibre Channel driver in your environment.
Overview
When configuring a Fibre Channel environment, you can use LUN Manager to set user authentication between ports of the storage system and hosts. In a Fibre Channel environment, the ports and hosts use Null DH-CHAP as the authentication method. This section provides an overview of user authentication.
NOTE: Throughout this manual, Null DH-CHAP is sometimes referred to as CHAP.
The operation of user authentication in a Fibre Channel environment involves the following three phases:
1.
A host group of the storage system authenticates a host that attempts to connect (authentication of hosts).
2.
The host authenticates the connection-target host group of the storage system (authentication of host groups).
CAUTION: Because the host bus adapters currently do not support this function, this authentication phase is unusable in the Fibre Channel environment.
3.
A target port of the storage system authenticates a Fibre Channel switch that attempts to connect (authentication of Fibre Channel switches).
The storage system performs user authentication by host groups. Therefore, the host groups and hosts need to have their own user information for performing user authentication.
When a host attempts to connect to the storage system, the authentication of hosts phase starts. In this phase, it is determined whether the host group requires authentication of the host. If the host group does not require authentication of the host, then the host will connect to the storage system without authentication. If the host group requires it, authentication will be performed for the host.
When the host is authenticated successfully, the processing goes on to the next phase.
After the authentication of the host succeeds, if the host requires user authentication for the host group that is the connection target, the authentication of host groups phase starts. In this phase, the host groups and hosts authenticate with each other, that is, mutual authentication. In the
authentication of host groups phase, if the host does not require user authentication for the host group, the host will connect to the storage system without authentication of the host group.
38 Performing LUN Manager operations
The following explains the settings required for user authentication. The settings for authentication of host groups are needed only when you want to perform mutual authentication.
•
Settings for authentication of hosts
◦ On the storage system:
Use LUN Manager to specify whether to perform authentication of hosts on each host group. On a host group that performs authentication, register user information (group name, user name, and secret) of the hosts that are allowed to connect to the host group.
A secret is a password used in CHAP authentication. When registering user information, you can also specify whether to enable or disable authentication on a host basis. For details on the settings, see
and
◦ On hosts:
Configure the operating system and Fibre Channel host bus adapter driver for authentication by host groups with CHAP. You need to specify the user name and secret of the host used for CHAP. For details, see the documentation for the operating system and Fibre Channel host bus adapter driver in your environment.
•
Settings for authentication of ports (required if performing mutual authentication)
◦ On the storage system:
Use LUN Manager to specify user information (user name and secret) of each host group.
◦ On hosts:
Configure the operating system and Fibre Channel host bus adapter driver for authenticating host groups with CHAP. You need to specify the user name and secret of the host group that is the connection target. For details, see the documentation for the operating system and Fibre Channel host bus adapter driver in your environment.
When authentication of a host succeeds, the host performs authentication of the port reversely if required by the host (mutual authentication). In authentication of ports, when the user information
(user name and secret) of the port specified on the port side matches that stored on the host, the host allows the host group to connect.
Host and Host Group Authentication
When a host attempts to connect to the storage system, the connection results of the authentication of the host differs depending on the host group settings.
illustrates the relationship between host group settings and the connection results in a flow.
Setting Fibre Channel Authentication 39
Figure 28 Flow of Authentication of Hosts (In a Fibre Channel environment)
Each case in the flow is explained as follows. Case A to Case D in
corresponds that below.
•
When performing authentication of host groups
◦ If the user information for the host is registered on the host group, and authentication of the host is enabled (Case A):
The host group authenticates the user information sent from the host. If the authentication of the host successes, either of the following actions occur:
– When the host is configured for mutual authentication, the processing will go on to authentication of the host group, next.
– When the host is not configured for mutual authentication, the host will connect to the storage system.
40 Performing LUN Manager operations
If the host is not configured for authentication by host groups with CHAP, the authentication fails and the host cannot connect to the storage system.
◦ If the user information for the host is registered on the host group, but authentication of the host is disabled (Case B):
The host group does not perform authentication of the host. The host will connect to the storage system without authentication, regardless of whether or not the host is configured for authentication by host groups with CHAP.
◦ If the user information for the host is not registered on the host group (Case C):
Irrespective of the setting on the host, the host group performs authentication of the host, but results in failure. The host cannot connect to the storage system.
•
When connecting via a host group that does not perform authentication of hosts (Case D):
The host will connect to the storage system without authentication of the host, regardless of whether or not the host is configured for authentication by host groups with CHAP.
In this case, you need not register the user information for the host on the host group, but you can register it.
Notes: You should register user information for all hosts to be connected to a host group that performs authentication of hosts. To allow a specific host to connect to such a host group without authentication, configure the host group and the host as follows:
On the host group: Register the user information for the host you want to allow to connect without authentication, and then, disable the authentication setting of the host.
shows an example of authentication of hosts. In this figure, WWNs of host bus adapters
(HBAs) are abbreviated as a, b, and so on.
Setting Fibre Channel Authentication 41
Figure 29 Example of Authentication of Hosts
In
, host group 1 performs authentication of hosts, but host group 2 does not.
The user information for Host A is registered on host group 1, and the authentication setting is enabled. Therefore, if authentication of the host is successful, Host A can connect to the storage system (or, the processing goes on to the authentication of the host group). As a precondition of successful authentication, Host A should be configured for authentication by host groups with
CHAP.
The user information for Host B is also registered on host group 1, but the authentication setting is disabled. Therefore, Host B can connect to the storage system without authentication.
The user information for Host C is not registered on host group 1. Therefore, when Host C tries to connect to the storage system, the authentication fails and the connection request is denied, regardless of the setting on Host C.
Host D is attached to host group 2, which does not perform authentication of hosts. Therefore, Host
D can connect to the storage system without authentication.
During authentication of hosts, the connection result is determined by the combination of the following host group settings:
•
Setting of the host group in the Port tree: enable ( ) or disable ( )
•
Whether or not the user information for the host that attempts to connect is registered on the host group
42 Performing LUN Manager operations
shows the relationship between the combinations of host group settings and the connection results in authentication of hosts. Regardless of whether or not the host is configured for authentication by ports with CHAP, the connection results are as follows, unless otherwise noted.
Table 3 Combinations of port settings and connection results
Enable
Port settings
Authentication: at host group
User Information for
Host
Registered
Host settings Connection results
Enable Registered
Registered Connected if the authentication of the host succeeded
Not registered Failed to be authenticated and cannot be connected
Enable Not registered Registered Failed to be authenticated and cannot be connected
Disable ---
1
---
1
Connected without authentication of the host
2
1
This item does not affect the connection results, or cannot be specified.
2
If a host is configured for authentication by ports with CHAP, authentication of the host will fail. To allow such a host to connect to the port without authentication, do not configure it for authentication by ports with CHAP.
Switch Authentication
When a host attempts to connect to the storage system, the connection results of the authentication of the Fibre Channel switch differ depending on the Fibre Channel switch setting related to each port.
illustrates the relationship between Fibre Channel switch settings and the connection results in a flow. The setting of Fibre Channel switch authentication is independent from the setting of host authentication.
Setting Fibre Channel Authentication 43
Figure 30 Flow of Authentication of Fibre Channel Switch
Each case in the flow is explained as follows. Case A to Case D in
corresponds that below.
•
When performing authentication of Fibre Channel switches by ports:
◦ If the user information for the Fibre Channel switch is registered on the port, and authentication of the Fibre Channel switch is enabled (Case A):
Each port authenticates the Fibre Channel switch. If the authentication of the Fibre Channel switch ends successfully, either of the following actions occurs:
– When the Fibre Channel switch is configured for mutual authentication, the processing will go on to authentication of the port, next.
– When the Fibre Channel switch is not configured for mutual authentication, the Fibre
Channel switch will connect to the storage system.
44 Performing LUN Manager operations
If the Fibre Channel switch of the port is not configured for authentication with CHAP, the authentication fails and the Fibre Channel switch cannot connect to the storage system.
◦ If the user information for the Fibre Channel switch is registered on the port, but authentication of the Fibre Channel switch is disabled (Case B):
The ports do not perform authentication of the Fibre Channel switch. The Fibre Channel switch will connect to the storage system without authentication regardless of whether or not the Fibre Channel switch is configured for authentication with CHAP.
◦ If the user information for the Fibre Channel switch is not registered on the port (Case C):
Regardless of the setting on the Fibre Channel switch, the port performs authentication of the Fibre Channel switch, but results in failure. The Fibre Channel switch cannot connect to the storage system.
•
When not performing authentication of Fibre Channel switches by ports (Case D):
The Fibre Channel switch will connect to the storage system without authentication of the host, regardless of whether or not the Fibre Channel switch is configured for authentication with
CHAP.
In this case, you need not register the user information for the Fibre Channel switch on the port, but you can register it.
During authentication of hosts, the connection result is determined depending on the combination of the following port settings:
•
Setting of the port in the Port tree: enable ( ) or disable ( )
•
Whether or not the user information for the Fibre Channel switch that attempts to connect is registered on the port
shows the relationship between the combinations of port settings and the connection results in authentication of Fibre Channel switches. Regardless of whether or not the host is configured for authentication by Fibre Channel switches with CHAP, the connection results are as follows, unless otherwise noted.
Table 4 Combinations of Fibre Channel settings and connection results
Enable
Port settings
Authentication: at
Fibre Channel switch
User Information for
Fibre Channel switch
Registered
Fibre Channel switch settings
Connection results
Registered Connected if the authentication of the
Fibre Channel switch succeeded
Enable Registered Not registered Failed to be authenticated and cannot be connected
Enable Not registered Registered Failed to be authenticated and cannot be connected
Disable ---
1
---
1
Connected without authentication of the
Fibre Channel switch
2
1
This item does not affect the connection results, or cannot be specified.
2
If a Fibre Channel switch is configured for authentication by ports with CHAP, authentication of the host will fail. To allow such a Fibre Channel switch to connect to the port without authentication, do not configure it for authentication by ports with CHAP.
Authentication of Ports (Performing Mutual Authentication)
When authentication of a host succeeds, the host performs authentication of the port if required by the host (mutual authentication). In authentication of ports, when the user information (user name
Setting Fibre Channel Authentication 45
and secret) specified on the port side matches that stored on the host, the host allows the host group to connect.
Configuring Fibre Channel Authentication
Enabling or Disabling Host Authentication
You can specify whether or not to perform authentication of hosts on each host group. Change the user authentication settings of the host groups to enable or disable authentication of hosts. By default, user authentication is disabled.
To enable authentication for hosts in a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder appears below the
Subsystem folder.
4.
Double-click the Fibre folder and Fibre Channel port icon under the Fibre folder.
When you double-click the Fibre folder, the Fibre Channel ports contained in the storage system appear as icons. If you double-click the Fibre Channel ports, host groups appear as icons. On the right of each icon is the host group name. When the enable icon appears, the host group performs authentication of hosts. When the disable icon group does not perform authentication. By default, the disable icon host groups.
appears, the host is displayed for all
5.
Right-click a host group that is displayed with the disable icon , and select Authentication
:Disable -> Enable from the pop-up menu.
6.
Right-click a host group that is displayed with the disable icon.
The host group disable icon changes to enable and the part name is displayed in blue.
7.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click OK to close the message.
The setting is applied to the storage system.
To return the host group setting to disable , perform the same operation, but select the
Authentication :Enable -> Disable menu in step 5.
To return the host group setting to disable
Registering Host User Information
On a host group that performs authentication of hosts, register user information for all hosts that you allow to connect. This section explains how to register user information for a host in a host group.
To register user information for a host in a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, select a port or host group on which you want to register user information for a host.
The user information for hosts currently registered on the selected port or host group appears in the Authentication Information (Host) list.
46 Performing LUN Manager operations
You can register user information for a host even if the port status is disable . In this case, however, the registered user information is ignored.
4.
Right-click any point in the Authentication Information (Host) list.
5.
Select Add New User Information from the pop-up menu.
The Add New User Information (Host) dialog box ( Figure 31
) appears. In this dialog box, specify the following user information for the host to which you want to connect.
•
Group Name
Specify the group name of host bus adapter. Select the name from the list. The list includes the group names of all host bus adapters physically connected to the selected port.
•
User Name
Specify the WWN of the host bus adapter in up to 16 characters.
You can use alphanumeric characters in a user name.
•
Secret
Specify the secret (that is, a password used in CHAP authentication) in 12 to 32 characters.
You can use alphanumeric characters, spaces, and the following symbols in a secret:
. - + @ _ = : / [ ] , ~
•
Re-enter Secret
Specify the secret again for confirmation.
•
Protocol
Specify the protocol used in the user authentication. This protocol is fixed to CHAP.
6.
Click the OK button to close the Add New User Information (Host) dialog box.
The specified user information for the host is added in blue in the Authentication Information
(Host) list of the Authentication window.
7.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 31 Add New User Information (Host) Dialog Box
You should register user information for all the hosts to be connected with a host group that performs authentication of hosts. To allow a specific host to connect to such a host group without authentication, configure the host group and the host as follows.
On the host: It does not matter if you configure the host for authentication by ports with CHAP.
Setting Fibre Channel Authentication 47
Changing Host User Information
You can change the registered user name or secret of a host, and change authentication settings between enable and disable after registration. You cannot change the WWN when you change user information.
To change user information for a host registered on a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, expand the Fibre folder and select a port or host group on which the user information you want to change is registered.
All the user information for the hosts registered on the selected port or host group appears in the Authentication Information (Host) list.
4.
In the User Information (Host) list, right-click a user information item that you want to change.
5.
Select Change User Information from the pop-up menu.
The Change User Information (Host) dialog box ( Figure 32 ) appears.
6.
Change the user information for the host in the Change User Information (Host) dialog box.
You can change the specifications of User Name and Secret. For details on available characters and length in the user name or secret, see
7.
Click the OK button to close the Change User Information (Host) dialog box.
The user information for the host is changed to blue in the Authentication Information (Host) list of the Authentication window.
8.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
9.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 32 Change User Information (Host) Dialog Box
Deleting Host User Information
To delete user information for a host from a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, expand the Fibre folder and select a port or host group on which the user information you want to delete is registered.
The user information for hosts currently registered on the selected port or host group appears in the Authentication Information (Host) list.
4.
In the Authentication Information (Host) list, right-click a user information item that you want to delete.
48 Performing LUN Manager operations
5.
Select Delete User Information from the pop-up menu.
Delete Authentication Information dialog box (
Figure 33 ) appears and asks if you want to
delete the selected user information for the host.
6.
Click the OK button to close the message.
7.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 33 Delete Authentication Information Dialog Box
Registering Host Group User Information
To perform mutual authentication, you need to specify user information for host groups on the ports of the storage system. Specify unique user information for each host group. You can change the specified user information for host groups the same way you specified them initially.
To specify user information for a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, select a port or host group whose user information you want to specify.
The currently registered user information for the selected port or host group appears in the
Authentication Information (Target) list.
4.
Right-click any point in the Authentication Information (Target) list and select Specify
Authentication information from the pop-up menu.
The Specify Authentication Information dialog box (
Figure 34 ) appears. In this dialog box,
specify the following user information for the port or host group selected in the Port tree.
•
Port Name
The port name of the selected port appears. You cannot change the port name.
•
User Name
Specify the user name of the host group in up to 16 characters. You can use alphanumeric characters. User names are case-sensitive.
•
Secret
Specify the secret (that is, a password used in CHAP authentication) in 12 to 32 characters.
You can use alphanumeric characters, spaces, and the following symbols in a user name:
Setting Fibre Channel Authentication 49
. - + @ _ = : / [ ] , ~
•
Re-enter Secret
Specify the secret again for confirmation.
5.
Click the OK button to close the Specify Authentication Information dialog box.
The specified user information for the port appears in blue in the Authentication Information
(Target) list of the Authentication window.
6.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 34 Specify Authentication Information Dialog Box
Clearing Host Groups User Information
To clear user information for a host group:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, expand the Fibre folder and select a port or host group whose user information you want to clear.
The currently registered user information for the port or host group appears in the Authentication
Information (Target) list.
4.
Right-click any point in the Authentication Information (Target) list and select Clear Authentication information from the pop-up menu.
Clear Authentication Information dialog box appears and asks if you want to clear the user information for the selected host group.
5.
Click the OK button to close the Clear Authentication Information dialog box.
The user information for the selected host group disappears from the Authentication Information
(Target) list.
6.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The setting is applied to the storage system.
50 Performing LUN Manager operations
Port Authentication
Setting Port Information
To perform user authentication in Fibre Channel environment, you need to specify information on the Fibre Channel ports of the storage system.
To specify information for a Fibre Channel port:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder displays below the Subsystem folder. The information for the port appears in the Port Information list.
4.
Right-click any point in the Port Information list and select Set Port Information from the pop-up menu.
The Set Port Information dialog box (
Figure 34 ) appears. In this dialog box, specify the
following information for the port.
•
Time out
Specify the period of time from when authentication fails to when the next authentication session ends. Valid periods are between 15 and 60 seconds. The initial value of the Time out is 45 seconds.
•
Refusal Interval
Specify the interval from when connection to a port fails to when the next authentication session starts. Valid intervals are up to 60 minutes. The initial value of the Refusal Interval is 3 minutes.
•
Refusal Frequency
Specify the number of times authentication can be attempted for connection to a port.
The maximum value is 10 times. The initial value of the Refusal Frequency is 3 times.
5.
Click OK to close the Set Port Information dialog box.
6.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 35 Set Port Information Dialog Box
Setting Port User Information
To register user information on a Fibre Channel port:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
Setting Fibre Channel Authentication 51
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder displays below the Subsystem folder.
4.
In the Port tree, double-click the Fibre folder.
The information for the port appears in the tree.
5.
Right-click any port icon in the Port tree, and select Default Setting(User Name/Secret) from the pop-up menu.
The Default Setting(User Name/Secret) dialog box ( Figure 31 ) appears. In this dialog box,
specify the following user information.
•
User Name
Specify the user name for Fibre Channel with up to 16 characters. You can use alphanumeric characters in a user name. User names are case-sensitive.
•
Secret
Specify the secret (that is, a password used in CHAP authentication) in 12 to 32 characters.
You can use alphanumeric characters, spaces, and the following symbols in a secret:
. - + @ _ = : / [ ] , ~
•
Re-enter Secret
Specify the secret, again, for confirmation.
6.
Click the OK button to close the Default Setting(User Name/Secret) dialog box.
7.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 36 Default Setting(User Name/Secret) Dialog Box
Switch Authentication
Setting Switch User Information
To register user information on a Fibre Channel switch:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
52 Performing LUN Manager operations
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder displays below the Subsystem folder.
4.
In the Port tree, double-click the Fibre folder.
The information for the Fibre Channel switch appears in the FC Switch Information list.
5.
Right-click any point in the FC Switch Information list
6.
Select Specify User Information from the pop-up menu.
The Specify Authentication Information dialog box (
) appears. In this dialog box, specify the following user information for the host you want to allow connection.
•
User Name
Specify the user name of the Fibre Channel switch with up to 16 characters.
You can use alphanumeric characters in a user name.
•
Secret
Specify the secret (that is, a password used in CHAP authentication) in 12 to 32 characters.
You can use alphanumeric characters, spaces, and the following symbols in a secret:
. - + @ _ = : / [ ] , ~
•
Re-enter Secret
Specify the secret again for confirmation.
7.
Click the OK button to close the Specify Authentication Information dialog box.
8.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
9.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 37 Specify Authentication Information Dialog Box
Clearing Switch User Information
To clear the user information for a Fibre Channel switch:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
Setting Fibre Channel Authentication 53
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder displays below the Subsystem folder.
4.
In the Port tree, double-click the Fibre folder.
The information for the Fibre Channel switch appears in the FC Switch Information list.
5.
Right-click any point in the FC Switch Information list and select Clear User information from the pop-up menu.
The Clear Authentication Information dialog box appears and asks if you want to clear the user information for the selected Fibre Channel switch.
6.
Click the OK button to close the Clear Authentication Information dialog box.
7.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The setting is applied to the storage system.
Figure 38 Clear Authentication Information Dialog Box
Setting the Switch Authentication Mode
To specify the authentication mode of a Fibre Channel switch:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, double-click the Subsystem folder. If the storage system contains any Fibre
Channel adapters, the Fibre folder appears below the Subsystem folder.
4.
In the Port tree, double-click the Fibre folder. The information for the Fibre Channel switch appears in the FC Switch Information list.
5.
Right-click any point in the FC Switch Information list and select Authentication
Mode:unidirectional->bi-directional.
6.
Click Apply in the Authentication window. A message appears asking if you want to apply the setting to the storage system.
7.
Click OK to close the message. The setting is applied to the storage system.
To return the Fibre Channel setting, perform the same operation, but select the Authentication
Mode:bi-directional->unidirectional menu in step 5.
54 Performing LUN Manager operations
Enabling or Disabling Switch Authentication
To enable Fibre Channel switches to authenticate hosts, you must enable the user authentication settings of Fibre Channel switches. By default, the Fibre Channel switch authentication is disabled.
To enable a Fibre Channel switch to authenticate hosts:
1.
Make sure that Remote Web Console is in Modify mode.
2.
Start LUN Manager and display the Authentication window.
3.
In the Port tree, double-click the Subsystem folder.
If the storage system contains any Fibre Channel adapters, the Fibre folder appears below the Subsystem folder.
4.
In the Port tree, double-click the Fibre folder.
The information for the Fibre Channel switch appears in the FC Switch Information list.
5.
Right-click any point in the FC Switch Information list and select Authentication :Disable->Enable from the pop-up menu.
6.
Click the Apply button in the Authentication window.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The setting is applied to the storage system.
To return the Fibre Channel switch setting so that the switch cannot authenticate hosts, perform the same operation, but select the Authentication :Enable->Disable menu in step 5.
Changing the Fibre Channel LU Path Settings
Changing WWNs and Nicknames of Host Bus Adapters
In Fibre Channel environments, host bus adapters can be identified by WWNs or nicknames.
To change the WWN and/or the nickname of a host bus adapter:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, double-click the Fibre folder to open the folder.
A list of Fibre Channel ports appears.
3.
In the tree, double-click the Fibre Channel port to which the desired host bus adapter is connected.
4.
In the tree, select and right-click a host bus adapter ( ).
5.
Select Change WWN & Name from the pop-up menu.
The Change WWN & Name dialog box (
6.
To change the WWN, enter a new WWN or select another WWN in the WWN list.
To change the nickname, enter a new nickname in the Nickname box.
7.
If necessary, check Apply this change to other ports, too.
If this check box is checked, the change in the dialog box will also affect other ports. For example, suppose that the same host bus adapter (that is, the same WWN) is located below ports CL1-A and CL2-A in the tree. If you select the host bus adapter (or the WWN) from below one of the ports and change the nickname to hba1, the host bus adapter below the other port will also be renamed hba1.
Changing the Fibre Channel LU Path Settings 55
NOTE: The change in the dialog box will not affect any port that satisfies one of the following conditions:
•
The resulting nickname is already used as the nickname of a host bus adapter connected to the port.
•
The resulting WWN exists in the port.
8.
Click the OK button to close the Change WWN & Name dialog box. If a message appears and asks if you want to continue the operation, click the OK button.
The changes are indicated in blue in the tree.
NOTE: If you check Apply this change to other ports, too and click the OK button, a dialog box appears (
Figure 40 ) and lists the host bus adapters to be changed. To make changes,
click the OK button. If not, click the Cancel button.
9.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the changes to the storage system.
10.
Click the OK button to close the message.
The changes are applied to the storage system.
Figure 39 Change WWN & Name Dialog Box
Figure 40 Dialog Box that Displays the Host Bus Adapters to be Changed
56 Performing LUN Manager operations
Deleting Host Bus Adapters from Host Groups
To delete an HBA from a host group:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, select and right-click a host bus adapter ( ).
A pop-up menu appears.
3.
Select Delete WWN from the pop-up menu.
A message appears, asking whether you want to delete the host bus adapter (WWN).
4.
Click the YES button to close the message.
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Deleting Old WWNs from the WWN List
If you disconnect a host that has been connected via a cable to your storage system, the WWN for the host will remain in the WWN list of the LUN Manager window. To delete the WWN from the WWN list, take the following steps:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the WWN list, locate WWNs that are not registered in any host group. If the host group column is blank, the WWN is not registered in any host group. Next, from these WWNs, select the WWN that you want to delete, and then right-click the selection.
A pop-up menu appears.
3.
Select Erase WWN from the pop-up menu.
4.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
5.
Click the OK button to close the message.
The settings are applied to the storage system.
Changing the Name or Host Mode of a Host Group
Use LUN Manager to change the name or host mode of a host group. You cannot perform this operation on host groups for initiator ports.
CAUTION: Before you change the host mode of a host group, HP recommends that you first back up the data on the port to which the host group belongs. The operation for setting the host mode is not destructive, but data integrity cannot be guaranteed without a backup.
To change the name and/or the host mode of a host group:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, select and right-click the host group.
3.
Select Change Host Group from the pop-up menu.
The Change Host group dialog box (
Changing the Fibre Channel LU Path Settings 57
4.
Do either of the following:
•
If you want to change the name of the host group, enter a new name in the Group Name box.
•
If you want to change the host mode, select the new host mode from the Host Mode list.
When selecting a host mode, you must consider the platform and some other factors (see
for details).
CAUTION:
•
Do not select Reserve from the list. Reserve indicates that the host mode is not currently supported.
•
If the microcode version is updated to 60-08-0X-XX/XX or later, Reserve is not displayed in the drop-down list. If you set the system option mode 847 to ON, Reserve can be displayed in the drop-down list. For details about changing the system option mode, see
.
5.
If necessary, click the Option button and then select host mode options (see
detailed information about host mode options, see
.
6.
Click the OK button to close the dialog box.
The changes are indicated in blue in the tree.
7.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The changes to the host group name and the host mode are applied to the storage system.
Figure 41 Change Host Group Dialog Box
NOTE: After you click the Option button, the dialog box expands to display the list of host mode options. The No. column indicates option numbers. Select the check box for the option you want to specify.
Deleting Host Groups
NOTE: You cannot delete host group 0 (zero). To remove all the WWNs and LU paths from host group 0, you must initialize host group 0 (for details, see
).
To delete a host group:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, select and right-click the desired host group.
58 Performing LUN Manager operations
3.
Select Delete Host Group from the pop-up menu.
A message appears, asking if you want to delete all the WWNs in the specified host group.
4.
Do one of the following:
•
To delete all the WWNs as well as the host group, click the Yes button.
•
To delete the host group but not delete the WWNs in the host group, click the No button.
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Initializing Host Group 0 (Zero)
If you follow the procedure below, host group 0 (zero) will be set to its initial state. This procedure will remove all the WWNs from host group 0 and will also remove all LU paths related to host group 0. This procedure will also change the host mode of host group 0 to Standard and initialize the host group name. For example, if you initialize host group 0 for port CL1-A, the name of host group 0 will change to 1A-G00.
To initialize host group 0:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, select and right-click host group 0, which is preceded by the number 00.
A pop-up menu appears.
3.
Select Clear Host Group from the pop-up menu.
A message appears, asking if you want to clear the contents of host group 0.
4.
Click the YES button.
The host mode and the host group name of host group 0 are changed in the tree. WWNs are also removed from host group 0.
LU paths are removed from the table on the right of the tree. The LUNs corresponding to the removed LU paths are displayed in blue.
5.
Click Apply in the LUN Manager window.
A message appears and asks if you want to apply the changes to the storage system.
6.
Click the OK button to close the message.
The changes are applied to the storage system.
Configuring Fibre Channel Ports
You can use the Port window to configure Fibre Channel ports in your storage system. You can also use this window to modify the port configuration when the system is in operation.
•
Specifying the data transfer speed for Fibre Channel ports (see
)
•
Addressing Fibre Channel ports (see
)
•
Specifying topology (see
•
Choosing between standard mode and the high speed mode (see
Setting the Data Transfer Speed for Fibre Channel Ports
As the system operation continues, you might notice that a larger amount of data is transferred at some ports but a smaller amount of data is transferred at some other ports. If you set a faster data transfer speed for ports where a larger amount of data is transferred, you will be able to optimize
Configuring Fibre Channel Ports 59
the performance of your system. If you set a slower data transfer speed for ports where a smaller amount of data is transferred, you will also be able to optimize the performance.
To specify the data transfer speed for a Fibre Channel port:
1.
Start LUN Manager and display the Port window.
2.
In the Package tree, select the Fibre folder or a channel adapter of a Fibre Channel.
•
If you select the Fibre folder, the Port list displays a list of Fibre Channel ports in the storage system.
•
If you select a channel adapter, the Port list displays a list of Fibre Channel ports on the channel adapter.
3.
Select a port from the Port list or the Select a Port list.
The Mode area displays information about the selected ports.
4.
Select the desired data transfer speed from the Host Speed list in the Mode area.
5.
Click the Set button.
A message appears and asks if you want to change the port settings.
6.
Click the OK button to close the message.
The settings are applied to the Port list (but not to the storage system). The changes are indicated in blue.
7.
Click the Apply button.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The settings are applied to the storage system.
Setting Fibre Channel Port Address
When configuring a system, you need to set addresses for Fibre Channel ports. When addressing
Fibre Channel ports, you can use AL-PA (arbitrated-loop physical address) or loop IDs as the addresses (for details, see
NOTE: For more detailed information about Fibre Channel device addressing, see HP
StorageWorks XP24000/XP20000 Disk Array Owner Guide.
Table 5 Available Addresses for Fibre Channel Ports
7
8
9
5
6
3
4
0
1
2
DA
D9
D6
E2
E1
E0
DC
Port
Address
(AL-PA)
EF
E8
E4
Loop
ID
AB
AA
A9
B1
AE
AD
AC
Port
Address
(AL-PA)
B4
B3
B2
Loop
ID
37
38
39
33
34
35
36
30
31
32
6D
6C
6B
73
72
71
6E
Port
Address
(AL-PA)
76
75
74
Loop
ID
67
68
69
63
64
65
66
60
61
62
39
36
35
45
43
3C
3A
Port
Address
(AL-PA)
49
47
46
Loop
ID
97
98
99
93
94
95
96
90
91
92
04
02
01
Port
Address
(AL-PA)
10
0F
08
Loop
ID
120
121
122
123
124
125
60 Performing LUN Manager operations
Table 5 Available Addresses for Fibre Channel Ports (continued)
Loop
ID
Loop
ID
Loop
ID
Port
Address
(AL-PA)
25
23
1F
1E
2A
29
27
26
1D
1B
18
17
2E
2D
2C
2B
34
33
32
31
Loop
ID
112
113
114
115
108
109
110
111
116
117
118
119
104
105
106
107
100
101
102
103
82
83
84
85
78
79
80
81
86
87
88
89
74
75
76
77
70
71
72
73
52
53
54
55
48
49
50
51
56
57
58
59
44
45
46
47
40
41
42
43
22
23
24
25
18
19
20
21
26
27
28
29
14
15
16
17
10
11
12
13
Port
Address
(AL-PA)
53
52
51
4E
59
56
55
54
4D
4C
4B
4A
65
63
5C
5A
6A
69
67
66
Port
Address
(AL-PA)
88
84
82
81
98
97
90
8F
80
7C
7A
79
9F
9E
9D
9B
A7
A6
A5
A3
Port
Address
(AL-PA)
C6
C5
C3
BC
CB
CA
C9
C7
BA
B9
B6
B5
D1
CE
CD
CC
D5
D4
D3
D2
Port
Address
(AL-PA)
Loop
ID
NOTE: To find more detailed information about Fibre Channel device addressing, see the HP
StorageWorks XP24000/XP20000 Disk Array Owner Guide.
To set the address of a Fibre Channel port:
1.
Start LUN Manager and display the Port window.
2.
In the Package tree, select the Fibre folder or a channel adapter of a Fibre Channel.
•
If you select the Fibre folder, the Port list displays a list of Fibre Channel ports in the storage system.
•
If you select a channel adapter, the Port list displays a list of Fibre Channel ports on the channel adapter.
3.
Select a port from the Port list or the Select a Port list.
The Mode area displays information about the selected ports.
4.
Select an address from the Fibre Addr. list in the Mode area.
5.
Click the Set button.
A message appears and asks if you want to change the port settings.
Configuring Fibre Channel Ports 61
6.
Click the OK button to close the message.
The settings are applied to the Port list (but not to the storage system). The changes are indicated in blue.
7.
Click the Apply button.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The settings are applied to the storage system.
Setting the Fibre Channel Topology
The term topology indicates how devices are connected to each other. Fibre Channel provides the following types of topology:
•
Fabric: Utilizes a fabric switch to connect a large number of devices (up to 16 million) together.
Each device will have the full bandwidth of 100 MB/sec.
•
FC-AL (Fibre Channel-Arbitrated Loop): Shared interface that can connect up to 126 devices
(AL-ports) together. The 100 MB/sec bandwidth is shared among the devices connected to each other.
•
Point-to-point: The simplest fibre topology connects two devices directly together.
Figure 42 FC-AL Topology and Point-to-point Topology
When you configure your system, you must use the LUN Manager window to specify whether the hosts and the storage system are connected via a fabric switch.
If a fabric switch is used, specify FC-AL or point-to-point in the LUN Manager window (by default,
FC-AL is specified). If a fabric switch is used, consult the documentation for the fabric switch to learn whether FC-AL or point-to-point should be used. Some fabric switches require you to specify point-to-point to get the system running.
If no fabric switch is used, you must specify FC-AL.
To specify the topology:
1.
Start LUN Manager and display the Port window.
2.
In the Package tree, select the Fibre folder or a channel adapter of Fibre Channel.
•
If you select the Fibre folder, the Port list displays a list of Fibre Channel ports in the storage system.
•
If you select a channel adapter, the Port list displays a list of Fibre Channel ports on the channel adapter.
3.
Select a port from the Port list or the Select a Port list.
The Mode area displays information about the selected ports.
62 Performing LUN Manager operations
4.
If a fabric switch is used, select Enable from the Fabric list in the Mode area.
If a fabric switch is not used, select Disable from the Fabric list in the Mode area.
5.
Select FC-AL or P-to-P from the Connection list.
NOTE: If a fabric switch is used, consult the documentation for the fabric switch to check if your fabric switch requires the point-to-point topology. Some fabric switches require the point-to-point topology to get the system running. To specify point-to-point topology, select
P-to-P.
6.
Click the Set button.
A message appears and asks if you want to change the port settings.
7.
Click the OK button to close the message.
The settings are applied to the Port list (but not to the storage system). The changes are indicated in blue.
8.
Click the Apply button.
A message appears and asks if you want to apply the setting to the storage system.
9.
Click the OK button to close the message.
The settings are applied to the storage system.
CAUTION: When you change the settings while you are online to the hosts, the device may not be recognized from the hosts. In this case, you will need to reboot the hosts.
Changing the Fiber PCB Mode Between Standard, High Speed, and Initiator/External
Mix Mode
Channel adapter boards have built-in ports to be used for connecting hosts and a storage system.
The ports can be in Standard mode, High Speed mode, or Initiator/External MIX mode, though all the ports are in Standard mode by default. If a port satisfies certain conditions, you can apply
High Speed mode to the port to improve port performance. Or, if a port satisfies certain conditions, you can apply Initiator/External MIX mode so that one port can be used as both an initiator port for XP Continuous Access or XP Continuous Access Journal and an external port applied to a remote command device. For more information on how to define the remote command device, see the HP
StorageWorks XP24000/XP20000 External Storage Software User Guide.
You must apply High Speed mode or Initiator/External MIX mode to groups of four ports, not to individual ports. In LUN Manager terminology, each group of four ports is referred to as a port
block. You can apply High Speed mode or Initiator/External MIX mode to each port block.
When you apply High Speed mode or Initiator/External MIX mode, each pair of ports in a port block must satisfy the following conditions.
•
The two ports take the same fabric option (Enable or Disable).
•
The two ports take FC-AL as the Connection option.
•
The two ports use different port addresses and no matching addresses.
•
When you apply High Speed mode, the two ports take the same port attribute (the attribute can be Initiator, RCU target, or Target).
•
When you apply Initiator/External MIX mode, one port takes the Initiator attribute and the other port takes the External attribute.
•
Only one port is to be used for connecting the host.
shows an example of High Speed mode or Initiator/External MIX mode applied to one or two port blocks when the channel adapter board has 8 ports.
Configuring Fibre Channel Ports 63
Figure 43 Ports in High Speed Mode or Initiator/External MIX mode
If High Speed mode is applied to the four ports in a port block, only two of the ports can be used for connecting the host. When hosts issue I/Os to ports, the I/Os will be processed by processors on channel adapters. I/Os to each port will be processed by only one processor in Standard mode, but by two processors in High Speed mode. Therefore, ports in High Speed mode can process I/Os faster than ports in Standard mode. By balancing the workloads on the processors, a greater improvement can be expected with the system performance.
You cannot change standard mode to high-speed mode or vice versa while you are online to the hosts. You will need to reboot the hosts after changing the mode.
To change the configuration of a port that is being used, you must perform a backup operation before changing the port configuration.
Port names can differ, depending on whether ports are in Standard mode, High Speed mode, or
Initiator/External MIX mode. For detailed information about port names, see tables later in this section.
64 Performing LUN Manager operations
To improve the I/O processing speed by applying High Speed mode, a path definition is also necessary for a port that cannot be used for the connection with a host. For example, if the mode of the port block including the CL1-A port is changed to High Speed, the path definition is also necessary for the CL3-A [1-A 2nd] port that cannot be used for the connection with a host.
NOTE:
•
Sometimes the Standard mode, the High Speed mode, and the Initiator/External MIX mode are collectively referred to as Fibre PCB modes. PCB is an acronym for printed circuit board.
The storage system documentation sometimes uses the term PCB when referring to a channel adapter, which is a printed circuit board used for connecting hosts and a storage system.
•
Storage partition administrators cannot apply the High Speed mode or the Initiator/External
MIX mode.
Table 6 Port Serial Numbers and Port Names (4-port Fibre Channel Adapter)
-
CL1-D
-
CL3-D
-
CL1-G
CL3-G
-
CL1-F
-
CL3-F
-
CL1-C
-
CL3-C
23
24
25
19
20
21
22
15
16
17
18
11
12
13
14
7
8
9
10
5
6
3
4
0
1
2
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
CL1-A
CL3-A
-
CL1-A
CL3-A [1-A 2nd]
-
-
-
-
CL1-B
CL3-B
CL1-E
CL3-E
-
CL1-B
-
CL3-B [1-B 2nd]
-
CL1-E
-
CL3-E [1-E 2nd]
-
CL1-F
-
CL3-F [1-F 2nd]
-
CL1-C
-
CL3-C [1-C 2nd]
-
CL1-D
-
CL3-D [1-D 2nd]
-
CL1-G
CL3-G [1-G 2nd]
55
56
57
51
52
53
54
-
CL1-P
-
CL3-P
-
CL1-L
-
CL3-L
-
CL1-K
-
CL3-K
-
CL1-N
-
CL3-N
47
48
49
50
43
44
45
46
39
40
41
42
35
36
37
38
32
33
34
Port serial number
-
Standard mode High Speed mode or
Initiator/External
MIX mode
CL1-J
CL3-J
-
CL1-J
CL3-J [1-J 2nd]
-
-
-
CL1-M
CL3-M
CL1-Q
CL3-Q
-
CL1-K
-
CL3-K [1-K 2nd]
-
CL1-N
-
CL3-N [1-N 2nd]
-
CL1-P
-
CL3-P [1-P 2nd]
-
CL1-L
-
CL3-L [1-L 2nd]
-
CL1-M
-
CL3-M [1-M 2nd]
-
CL1-Q
CL3-Q [1-Q 2nd]
Configuring Fibre Channel Ports 65
Table 6 Port Serial Numbers and Port Names (4-port Fibre Channel Adapter) (continued)
26
27
28
29
30
31
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
-
-
CL1-H
CL3-H
-
-
-
-
CL1-H
CL3-H [1-H 2nd]
58
59
60
61
62
63
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
-
-
CL1-R
CL3-R
-
-
-
-
CL1-R
CL3-R [1-R 2nd]
-
CL9-D
-
CLB-D
-
CL9-G
CLB-G
-
CL9-F
-
CLB-F
-
CL9-C
-
CLB-C
87
88
89
83
84
85
86
79
80
81
82
75
76
77
78
71
72
73
74
67
68
69
70
64
65
66
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
CL9-A
CLB-A
-
CL9-A
CLB-A [9-A 2nd]
-
-
-
-
CL9-B
CLB-B
CL9-E
CLB-E
-
CL9-B
-
CLB-B [9-B 2nd]
-
CL9-E
-
CLB-E [9-E 2nd]
-
CL9-F
-
CLB-F [9-F 2nd]
-
CL9-C
-
CLB-C [9-C 2nd]
-
CL9-D
-
CLB-D [9-D 2nd]
-
CL9-G
CLB-G [9-G 2nd]
115
116
117
118
119
120
121
-
CL9-P
-
CLB-P
-
CL9-L
-
CLB-L
-
CL9-K
-
CLB-K
-
CL9-N
-
CLB-N
111
112
113
114
107
108
109
110
103
104
105
106
99
100
101
102
96
97
98
Port serial number
-
Standard mode High Speed mode or
Initiator/External
MIX mode
CL9-J
CLB-J
-
CL9-J
CLB-J [9-J 2nd]
-
-
-
CL9-M
CLB-M
CL9-Q
CLB-Q
-
CL9-K
-
CLB-K [9-K 2nd]
-
CL9-N
-
CLB-N [9-N 2nd]
-
CL9-P
-
CLB-P [9-P 2nd]
-
CL9-L
-
CLB-L [9-L 2nd]
-
CL9-M
-
CLB-M [9-M 2nd]
-
CL9-Q
CLB-Q [9-Q 2nd]
66 Performing LUN Manager operations
91
92
93
94
Port serial number
90 -
Standard mode High Speed mode or
Initiator/External
MIX mode
-
95
-
-
-
CL9-H
CLB-H
-
-
CL9-H
-
CLB-H [9-H 2nd]
123
124
125
126
127
Port serial number
122 -
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
-
CL9-R
-
CLB-R
-
-
CL9-R
-
CLB-R [9-R 2nd]
-
-
CL2-C
CL4-C
-
-
CL2-D
CL4-D
-
-
CL2-E
CL4-E
-
-
CL2-F
CL4-F
-
CL2-G
CL4-G
148
149
150
151
144
145
146
147
140
141
142
143
136
137
138
139
152
153
154
132
133
134
135
128
129
130
131
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
-
-
CL2-A
CL4-A
CL2-B
CL4-B
-
-
CL2-A
CL4-A [2-A 2nd]
-
-
CL2-B
CL4-B [2-B 2nd]
-
-
CL2-E
CL4-E [2-E 2nd]
-
-
CL2-F
CL4-F [2-F 2nd]
-
-
CL2-C
CL4-C [2-C 2nd]
-
-
CL2-D
CL4-D [2-D 2nd]
-
CL2-G
CL4-G [2-G 2nd]
180
181
182
183
176
177
178
179
184
185
186
-
-
CL2-N
CL4-N
-
-
CL2-P
CL4-P
-
-
CL2-J
CL4-J
-
-
CL2-K
CL4-K
172
173
174
175
168
169
170
171
164
165
166
167
160
161
162
163
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
CL2-J
CL4-J [2-J 2nd]
-
-
CL2-K
CL4-K [2-K 2nd]
-
-
CL2-N
CL4-N [2-N 2nd]
-
-
CL2-P
CL4-P [2-P 2nd]
-
-
CL2-L
CL4-L
-
-
CL2-M
CL4-M
-
CL2-Q
CL4-Q
-
-
CL2-L
CL4-L [2-L 2nd]
-
-
CL2-M
CL4-M [2-M 2nd]
-
CL2-Q
CL4-Q [2-Q 2nd]
Configuring Fibre Channel Ports 67
156
157
158
159
Port serial number
155 -
Standard mode High Speed mode or
Initiator/External
MIX mode
-
-
-
CL2-H
CL4-H
-
-
CL2-H
CL4-H [2-H 2nd]
Port serial number
187 -
Standard mode High Speed mode or
Initiator/External
MIX mode
-
188
189
190
191 -
-
CL2-R
CL4-R
-
-
CL2-R
CL4-R [2-R 2nd]
-
CLC-C
-
CLA-D
-
CLC-D
-
CLA-G
-
CLC-E
-
CLA-F
-
CLC-F
-
CLA-C
-
-
CLC-G 217
218
219
213
214
215
216
209
210
211
212
205
206
207
208
201
202
203
204
197
198
199
200
193
194
195
196
Port serial number
192
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-A CLA-A
-
-
-
-
CLC-A
CLA-B
CLC-B
CLA-E
-
CLC-A [A-A 2nd]
-
CLA-B
-
CLC-B [A-B 2nd]
-
CLA-E
-
CLC-E [A-E 2nd]
-
CLA-F
-
CLC-F [A-F 2nd]
-
CLA-C
-
CLC-C [A-C 2nd]
-
CLA-D
-
CLC-D [A-D 2nd]
-
CLA-G
-
-
CLC-G [A-G 2nd]
245
246
247
248
241
242
243
244
249
250
251
-
CLC-N
-
CLA-P
-
CLC-P
-
CLA-L
-
CLC-J
-
CLA-K
-
CLC-K
-
CLA-N
237
238
239
240
233
234
235
236
229
230
231
232
225
226
227
228
Port serial number
224
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-J CLA-J
-
CLC-J [A-J 2nd]
-
CLA-K
-
CLC-K [A-K 2nd]
-
CLA-N
-
CLC-N [A-N 2nd]
-
CLA-P
-
CLC-P [A-P 2nd]
-
CLA-L
-
CLC-L
-
CLA-M
-
CLC-M
-
CLA-Q
-
-
CLC-Q
-
CLC-L [A-L 2nd]
-
CLA-M
-
CLC-M [A-M 2nd]
-
CLA-Q
-
-
CLC-Q [A-Q 2nd]
68 Performing LUN Manager operations
Port serial number
220
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-H CLA-H
221
222
223
-
-
CLC-H
-
-
CLC-H [A-H 2nd]
Port serial number
252
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-R CLA-R
253
254
255 -
-
CLC-R
-
-
CLC-R [A-R 2nd]
Table 7 Port Serial Numbers and Port Names (8-port Fibre Channel Adapter)
22
23
24
25
26
27
18
19
20
21
14
15
16
17
10
11
12
13
8
9
6
7
2
3
0
1
4
5
Port serial number
CL5-D
CL7-D
CL1-G
CL3-G
CL5-G
CL7-G
CL5-F
CL7-F
CL1-C
CL3-C
CL5-C
CL7-C
CL1-D
CL3-D
CL5-B
CL7-B
CL1-E
CL3-E
CL5-E
CL7-E
CL1-F
CL3-F
Standard mode High Speed mode or
Initiator/External
MIX mode
CL1-A
CL3-A
CL1-A
CL3-A [1-A 2nd]
CL5-A
CL7-A
CL1-B
CL3-B
CL5-A
CL7-A [5-A 2nd]
CL1-B
CL3-B [1-B 2nd]
CL5-B
CL7-B [5-B 2nd]
CL1-E
CL3-E [1-E 2nd]
CL5-E
CL7-E [5-E 2nd]
CL1-F
CL3-F [1-F 2nd]
CL5-F
CL7-F [5-F 2nd]
CL1-C
CL3-C [1-C 2nd]
CL5-C
CL7-C [5-C 2nd]
CL1-D
CL3-D [1-D 2nd]
CL5-D
CL7-D [5-D 2nd]
CL1-G
CL3-G [1-G 2nd]
CL5-G
CL7-G [5-G 2nd]
54
55
56
57
58
59
CL5-P
CL7-P
CL1-L
CL3-L
CL5-L
CL7-L
CL1-M
CL3-M
CL5-K
CL7-K
CL1-N
CL3-N
CL5-N
CL7-N
CL1-P
CL3-P
50
51
52
53
46
47
48
49
42
43
44
45
38
39
40
41
32
33
34
35
36
37
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL1-J
CL3-J
CL1-J
CL3-J [1-J 2nd]
CL5-J
CL7-J
CL1-K
CL3-K
CL5-J
CL7-J [5-J 2nd]
CL1-K
CL3-K [1-K 2nd]
CL5-M
CL7-M
CL1-Q
CL3-Q
CL5-Q
CL7-Q
CL5-K
CL7-K [5-K 2nd]
CL1-N
CL3-N [1-N 2nd]
CL5-N
CL7-N [5-N 2nd]
CL1-P
CL3-P [1-P 2nd]
CL5-P
CL7-P [5-P 2nd]
CL1-L
CL3-L [1-L 2nd]
CL5-L
CL7-L [5-L 2nd]
CL1-M
CL3-M [1-M 2nd]
CL5-M
CL7-M [5-M 2nd]
CL1-Q
CL3-Q [1-Q 2nd]
CL5-Q
CL7-Q [5-Q 2nd]
Configuring Fibre Channel Ports 69
Table 7 Port Serial Numbers and Port Names (8-port Fibre Channel Adapter) (continued)
28
29
30
31
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL1-H
CL3-H
CL5-H
CL7-H
CL1-H
CL3-H [1-H 2nd]
CL5-H
CL7-H [5-H 2nd]
60
61
62
63
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL1-R
CL3-R
CL5-R
CL7-R
CL1-R
CL3-R [1-R 2nd]
CL5-R
CL7-R [5-R 2nd]
CLB-D
CLD-D
CLF-D
CL9-G
CLB-G
CLD-G
CLF-G
CLB-F
CLD-F
CLF-F
CL9-C
CLB-C
CLD-C
CLF-C
CL9-D
89
90
91
85
86
87
88
81
82
83
84
77
78
79
80
73
74
75
76
69
70
71
72
64
65
66
67
68
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL9-A
CLB-A
CLD-A
CLF-A
CL9-B
CL9-A
CLB-A [9-A 2nd]
CLD-A
CLF-A [D-A 2nd]
CL9-B
CLB-B
CLD-B
CLF-B
CL9-E
CLB-E
CLD-E
CLF-E
CL9-F
CLB-B [9-B 2nd]
CLD-B
CLF-B [D-B 2nd]
CL9-E
CLB-E [9-E 2nd]
CLD-E
CLF-E [D-E 2nd]
CL9-F
CLB-F [9-F 2nd]
CLD-F
CLF-F [D-F 2nd]
CL9-C
CLB-C [9-C 2nd]
CLD-C
CLF-C [D-C 2nd]
CL9-D
CLB-D [9-D 2nd]
CLD-D
CLF-D [D-D 2nd]
CL9-G
CLB-G [9-G 2nd]
CLD-G
CLF-G [D-G 2nd]
117
118
119
120
121
122
123
CLB-P
CLD-P
CLF-P
CL9-L
CLB-L
CLD-L
CLF-L
CL9-M
CLB-K
CLD-K
CLF-K
CL9-N
CLB-N
CLD-N
CLF-N
CL9-P
113
114
115
116
109
110
111
112
105
106
107
108
101
102
103
104
96
97
98
99
100
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL9-J
CLB-J
CL9-J
CLB-J [9-J 2nd]
CLD-J
CLF-J
CL9-K
CLD-J
CLF-J [D-J 2nd]
CL9-K
CLB-M
CLD-M
CLF-M
CL9-Q
CLB-Q
CLD-Q
CLF-Q
CLB-K [9-K 2nd]
CLD-K
CLF-K [D-K 2nd]
CL9-N
CLB-N [9-N 2nd]
CLD-N
CLF-N [D-N 2nd]
CL9-P
CLB-P [9-P 2nd]
CLD-P
CLF-P [D-P 2nd]
CL9-L
CLB-L [9-L 2nd]
CLD-L
CLF-L [D-L 2nd]
CL9-M
CLB-M [9-M 2nd]
CLD-M
CLF-M [D-M 2nd]
CL9-Q
CLB-Q [9-Q 2nd]
CLD-Q
CLF-Q [D-Q 2nd]
70 Performing LUN Manager operations
93
94
95
Port serial number
92
Standard mode High Speed mode or
Initiator/External
MIX mode
CL9-H CL9-H
CLB-H
CLD-H
CLF-H
CLB-H [9-H 2nd]
CLD-H
CLF-H [D-H 2nd]
Port serial number
124
Standard mode High Speed mode or
Initiator/External
MIX mode
CL9-R CL9-R
125
126
127
CLB-R
CLD-R
CLF-R
CLB-R [9-R 2nd]
CLD-R
CLF-R [D-R 2nd]
CL6-C
CL8-C
CL2-D
CL4-D
CL6-D
CL8-D
CL2-G
CL4-G
CL6-E
CL8-E
CL2-F
CL4-F
CL6-F
CL8-F
CL2-C
CL4-C
CL6-G
CL8-G
CL2-H
150
151
152
153
146
147
148
149
142
143
144
145
138
139
140
141
154
155
156
134
135
136
137
130
131
132
133
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
128
129
CL2-A
CL4-A
CL2-A
CL4-A [2-A 2nd]
CL6-A
CL8-A
CL2-B
CL4-B
CL6-B
CL8-B
CL2-E
CL4-E
CL6-A
CL8-A [6-A 2nd]
CL2-B
CL4-B [2-B 2nd]
CL6-B
CL8-B [6-B 2nd]
CL2-E
CL4-E [2-E 2nd]
CL6-E
CL8-E [6-E 2nd]
CL2-F
CL4-F [2-F 2nd]
CL6-F
CL8-F [6-F 2nd]
CL2-C
CL4-C [2-C 2nd]
CL6-C
CL8-C [6-C 2nd]
CL2-D
CL4-D [2-D 2nd]
CL6-D
CL8-D [6-D 2nd]
CL2-G
CL4-G [2-G 2nd]
CL6-G
CL8-G [6-G 2nd]
CL2-H
182
183
184
185
178
179
180
181
186
187
188
CL6-N
CL8-N
CL2-P
CL4-P
CL6-P
CL8-P
CL2-L
CL4-L
CL6-J
CL8-J
CL2-K
CL4-K
CL6-K
CL8-K
CL2-N
CL4-N
174
175
176
177
170
171
172
173
166
167
168
169
162
163
164
165
Port serial number
160
161
Standard mode High Speed mode or
Initiator/External
MIX mode
CL2-J
CL4-J
CL2-J
CL4-J [2-J 2nd]
CL6-J
CL8-J [6-J 2nd]
CL2-K
CL4-K [2-K 2nd]
CL6-K
CL8-K [6-K 2nd]
CL2-N
CL4-N [2-N 2nd]
CL6-N
CL8-N [6-N 2nd]
CL2-P
CL4-P [2-P 2nd]
CL6-P
CL8-P [6-P 2nd]
CL2-L
CL4-L [2-L 2nd]
CL6-L
CL8-L
CL2-M
CL4-M
CL6-M
CL8-M
CL2-Q
CL4-Q
CL6-Q
CL8-Q
CL2-R
CL6-L
CL8-L [6-L 2nd]
CL2-M
CL4-M [2-M 2nd]
CL6-M
CL8-M [6-M 2nd]
CL2-Q
CL4-Q [2-Q 2nd]
CL6-Q
CL8-Q [6-Q 2nd]
CL2-R
Configuring Fibre Channel Ports 71
Port serial number
157
Standard mode High Speed mode or
Initiator/External
MIX mode
CL4-H CL4-H [2-H 2nd]
158
159
CL6-H
CL8-H
CL6-H
CL8-H [6-H 2nd]
189
190
191
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CL4-R CL4-R [2-R 2nd]
CL6-R
CL8-R
CL6-R
CL8-R [6-R 2nd]
CLG-C
CLA-D
CLC-D
CLE-D
CLG-D
CLA-G
CLC-G
CLE-G
CLG-E
CLA-F
CLC-F
CLE-F
CLG-F
CLA-C
CLC-C
CLE-C
CLG-G
CLA-H
CLC-H
215
216
217
218
211
212
213
214
207
208
209
210
203
204
205
206
219
220
221
199
200
201
202
195
196
197
198
192
193
194
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-A
CLC-A
CLE-A
CLA-A
CLC-A [A-A 2nd]
CLE-A
CLG-A
CLA-B
CLC-B
CLE-B
CLG-B
CLA-E
CLC-E
CLE-E
CLG-A [E-A 2nd]
CLA-B
CLC-B [A-B 2nd]
CLE-B
CLG-B [E-B 2nd]
CLA-E
CLC-E [A-E 2nd]
CLE-E
CLG-E [E-E 2nd]
CLA-F
CLC-F [A-F 2nd]
CLE-F
CLG-F [E-F 2nd]
CLA-C
CLC-C [A-C 2nd]
CLE-C
CLG-C [E-C 2nd]
CLA-D
CLC-D [A-D 2nd]
CLE-D
CLG-D [E-D 2nd]
CLA-G
CLC-G [A-G 2nd]
CLE-G
CLG-G [E-G 2nd]
CLA-H
CLC-H [A-H 2nd]
247
248
249
250
243
244
245
246
251
252
253
CLG-N
CLA-P
CLC-P
CLE-P
CLG-P
CLA-L
CLC-L
CLE-L
CLG-J
CLA-K
CLC-K
CLE-K
CLG-K
CLA-N
CLC-N
CLE-N
239
240
241
242
235
236
237
238
231
232
233
234
227
228
229
230
224
225
226
Port serial number
Standard mode High Speed mode or
Initiator/External
MIX mode
CLA-J
CLC-J
CLE-J
CLA-J
CLC-J [A-J 2nd]
CLE-J
CLG-J [E-J 2nd]
CLA-K
CLC-K [A-K 2nd]
CLE-K
CLG-K [E-K 2nd]
CLA-N
CLC-N [A-N 2nd]
CLE-N
CLG-N [E-N 2nd]
CLA-P
CLC-P [A-P 2nd]
CLE-P
CLG-P [E-P 2nd]
CLA-L
CLC-L [A-L 2nd]
CLE-L
CLG-L
CLA-M
CLC-M
CLE-M
CLG-M
CLA-Q
CLC-Q
CLE-Q
CLG-Q
CLA-R
CLC-R
CLG-L [E-L 2nd]
CLA-M
CLC-M [A-M 2nd]
CLE-M
CLG-M [E-M 2nd]
CLA-Q
CLC-Q [A-Q 2nd]
CLE-Q
CLG-Q [E-Q 2nd]
CLA-R
CLC-R [A-R 2nd]
72 Performing LUN Manager operations
Port serial number
222
Standard mode High Speed mode or
Initiator/External
MIX mode
CLE-H CLE-H
223 CLG-H CLG-H [E-H 2nd]
Port serial number
254
255
Standard mode High Speed mode or
Initiator/External
MIX mode
CLE-R CLE-R
CLG-R CLG-R [E-R 2nd]
Table 8 Port Serial Numbers and Port Names (HP StorageWorks XP20000 Disk Array)
72
73
74
75
76
77
68
69
70
71
64
65
66
67
12
13
14
15
8
9
10
11
6
7
4
5
2
3
0
1
Port serial number
CL9-E
CLB-E
CLD-E
CLF-E
CL9-F
CLB-F
CL9-A
CLB-A
CLD-A
CLF-A
CL9-B
CLB-B
CLD-B
CLF-B
CL1-E
CL3-E
CL5-E
CL7-E
CL1-F
CL3-F
CL5-F
CL7-F
CL1-A
CL3-A
CL5-A
CL7-A
CL1-B
CL3-B
CL5-B
CL7-B
Standard mode High Speed mode,
Initiator/External
MIX mode
CL1-A
CL3-A [1-A 2nd]
CL5-A
CL7-A [5-A 2nd]
CL1-B
CL3-B [1-B 2nd]
CL5-B
CL7-B [5-B 2nd]
CL1-E
CL3-E [1-E 2nd]
CL5-E
CL7-E [5-E 2nd]
CL1-F
CL3-F [1-F 2nd]
CL5-F
CL7-F [5-F 2nd]
CL9-A
CLB-A [9-A 2nd]
CLD-A
CLF-A [D-A 2nd]
CL9-B
CLB-B [9-B 2nd]
CLD-B
CLF-B [D-B 2nd]
CL9-E
CLB-E [9-E 2nd]
CLD-E
CLF-E [D-E 2nd]
CL9-F
CLB-F [9-F 2nd]
200
201
202
203
204
205
CLA-A
CLC-A
CLE-A
CLG-A
CLA-B
CLC-B
CLE-B
CLG-B
CL2-E
CL4-E
CL6-E
CL8-E
CL2-F
CL4-F
CL6-F
CL8-F
196
197
198
199
192
193
194
195
140
141
142
143
136
137
138
139
132
133
134
135
128
129
130
131
Port serial number
Standard mode
CL2-A
CL4-A
CL6-A
CL8-A
CL2-B
CL4-B
CL6-B
CL8-B
High Speed mode,
Initiator/External
MIX mode
CL2-A
CL4-A [2-A 2nd]
CL6-A
CL8-A [6-A 2nd]
CL2-B
CL4-B [2-B 2nd]
CL6-B
CL8-B [6-B 2nd]
CLA-E
CLC-E
CLE-E
CLG-E
CLA-F
CLC-F
CL2-E
CL4-E [2-E 2nd]
CL6-E
CL8-E [6-E 2nd]
CL2-F
CL4-F [2-F 2nd]
CL6-F
CL8-F [6-F 2nd]
CLA-A
CLC-A [A-A 2nd]
CLE-A
CLG-A [E-A 2nd]
CLA-B
CLC-B [A-B 2nd]
CLE-B
CLG-B [E-B 2nd]
CLA-E
CLC-E [A-E 2nd]
CLE-E
CLG-E [E-E 2nd]
CLA-F
CLC-F [A-F 2nd]
Configuring Fibre Channel Ports 73
Table 8 Port Serial Numbers and Port Names (HP StorageWorks XP20000 Disk Array)
(continued)
Port serial number
78
79
Standard mode
CLD-F
CLF-F
High Speed mode,
Initiator/External
MIX mode
CLD-F
CLF-F [D-F 2nd]
Port serial number
206
207
Standard mode
CLE-F
CLG-F
High Speed mode,
Initiator/External
MIX mode
CLE-F
CLG-F [E-F 2nd]
To switch among Standard mode, High Speed mode, or Initiator/External MIX mode:
1.
Start LUN Manager and display the Port window.
2.
In the Package tree, double-click the Fibre folder to open the folder.
The tree displays a list of CHA (channel adapter of Fibre Channel) packages.
3.
Double-click a channel adapter icon ( , or ) to display port blocks:
•
The icon indicates a block of ports in Standard mode.
•
The icon indicates a block of ports in High Speed mode.
•
The icon indicates a block of ports in Initiator/External MIX mode.
4.
Do one of the following:
•
To change the mode of a block of ports from Standard to High Speed or Initiator/External
MIX, right-click the icon and then select High Speed Mode/MIX Mode from the pop-up menu.
•
To change the mode of a block of ports from High Speed to Standard, right-click the icon and then select Standard Mode from the pop-up menu.
•
To change the mode of a block of ports from Initiator/External MIX to Standard, right-click the icon and then select Standard Mode from the pop-up menu.
A message appears, asking if you want to change the mode.
5.
Click the OK button to close the message.
6.
Click the Apply button.
A message appears and asks if you want to apply the setting to the storage system.
7.
Click the OK button to close the message.
The settings are applied to the storage system.
NOTE: Storage partition administrators cannot apply the High Speed mode or Initiator/External
MIX mode.
Viewing a List of Concatenated Parity Groups
The storage system supports concatenation of parity groups. If parity groups are concatenated, a logical volume can be dispersed across the concatenated parity groups. Dispersal of logical volumes can provide faster access to data (particularly, faster sequential access to data).
NOTE: Only an HP service representative can concatenate parity groups. If you have any questions about concatenation of parity groups, ask your HP service representative.
You can confirm whether a logical volume is dispersed across two or more parity groups. If the logical volume is dispersed across parity groups, a dialog box appears and displays a list of the parity groups.
To view a list of concatenated parity groups:
74 Performing LUN Manager operations
1.
Start LUN Manager and display the LUN Manager window.
2.
In the LDEV list, select a logical volume (that is, an LDEV) and then right-click the selected volume.
3.
Check to see if the Concatenation List command appears in the pop-up menu.
•
If the Concatenation List command appears, the logical volume is dispersed across parity
groups. Select Concatenation List to view a list of the parity groups ( Figure 44
).
•
If the Concatenation List command does not appear, the logical volume is not dispersed across parity groups.
Figure 44 Concatenation List Dialog Box
Deleting LU Paths
CAUTION: Do not remove LU paths when host I/O is in progress.
To delete LU paths:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, double-click a port. The host groups corresponding to the port are displayed.
3.
In the tree, select a host group. The LU Path list displays information about LU paths associated with the selected host group.
4.
In the LU Path list, select one or more LUNs to which volumes are assigned (if a volume is assigned to a LUN, the columns on the right of the LUN column are not empty).
5.
Right-click the selection and then select Release LU Path. A message appears asking whether to delete the specified LU paths.
6.
Click OK to close the message. The selected LU path is removed from the table.
7.
Click Apply in the LUN Manager window. A message appears asking whether to apply the setting to the storage system.
8.
Click OK to close the message. The settings are applied to the storage system and the specified
LU paths are deleted.
Deleting LU Paths 75
Figure 45 Information about LU Paths to be Deleted
NOTE: If you delete numerous paths at one time, the deletion may take time and the dialog box may seem to hang temporarily.
Defining and Viewing Alternate Paths
LUN Manager enables you to define alternate paths. If one LU path fails, you can switch to its alternate path.
To create an alternate path, you need to copy the original path from one port to another. For example, if you want to define an alternative for the LU path from the CL1-A port to the logical volume 00:00 :01, you need to copy the LU path from the CL1-A port to another port.
Copying Paths between Fibre Channel Ports
To use alternate paths, you must copy LU paths from one port to another.
CAUTION:
•
Before taking the following steps, see
“Notes on using LUN Manager” (page 11)
for important information.
•
To define alternate paths when LUN security is disabled, you must redefine the LU path.
To define alternate paths:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, double-click the copy source port to display host groups below the port.
3.
To copy all the LU paths defined in a host group, take the following steps to copy the host group: a.
Right-click the host group in the tree.
NOTE: If you right-click a host group for an initiator port, you cannot copy paths.
b.
Select Copy from the pop-up menu.
The selected host group turns green.
c.
Right-click the copy destination port.
d.
Select Paste from the pop-up menu. If a message appears and asks if you want to continue the operation, click OK.
NOTE: You cannot paste paths to initiator ports.
76 Performing LUN Manager operations
To copy one or more (but not all) LU paths defied to a host group, take the following steps: a.
Select the host group from the tree.
b.
From the LU Path list on the right, select one or more LUNs to which volumes are assigned.
If a volume is assigned to a LUN, the columns on the right of the LUN column are not empty.
c.
Right-click the selection and then select Copy Paths from the pop-up menu.
The selected LUNs turn green.
d.
Double-click the copy destination port to display host groups below the port.
e.
Right-click the host group to which you want to paste paths. Next, select Paste Paths from the pop-up menu. If a message appears and asks if you want to continue the operation, click the OK button.
NOTE: You cannot paste paths to host groups for initiator ports.
4.
Click Apply in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
5.
Click the OK button to close the message.
The settings are applied to the storage system.
Viewing a List of Alternate Paths
To view a list of alternate paths:
1.
Start LUN Manager and display the LUN Manager window.
2.
Do one of the following:
•
In the LU Path list, select a LUN, right-click the selected LUN, and then select Alternate
Paths from the pop-up menu. If nothing is displayed in the table cells to the right of the
LUN, no path is defined to the LU. Therefore, no alternative path is defined to the LU.
•
In the LDEV list, select a logical volume (that is, an LDEV), right-click the selected volume, and then select Alternate Paths from the pop-up menu. If nothing is displayed in the Paths column for a row in the LDEV list, no alternate paths are defined to that LDEV.
When you finish the operation, the Alternate Paths dialog box appears and displays a list of alternate paths (
Figure 46 ). In the Alternate Paths dialog box, each table row indicates an
alternate path.
Defining and Viewing Alternate Paths 77
Figure 46 Alternate Paths Dialog Box
NOTE: The Group ID column indicates group numbers (G-IDs) of the host group.
Using LUN Security
To protect mission-critical data in your storage system from illegal access, you need to secure the logical volumes in the storage system. Use LUN Manager to secure LUs from illegal access by enabling LUN security on ports.
By default, LUN security is disabled on each port. When configuring your system, you must enable
LUN security on ports.
If a port has the External attribute, you cannot apply LUN security to the port.
When you register hosts in multiple host groups, you must set the security switch (LUN security) to
ON. When you set the security switch to ON, you must specify the WWN of the host bus adapter.
Enabling LUN Security
NOTE: If a port has the External attribute, you cannot apply LUN security to the port.
To enable LUN security on a port:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, locate the desired port.
3.
See the text on the right of the port name to find LUN security status:
•
If LUN security is enabled, you do not need to go through the remaining steps in this procedure.
•
If LUN security is disabled, go to the next step.
4.
Select and right-click the port.
5.
Select LUN Security: Disable -> Enable from the pop-up menu.
A message appears, asking if you want to change the LUN security setting.
6.
Click the YES button to close the message.
A key is added to the port icon.
78 Performing LUN Manager operations
7.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
8.
Click the OK button to close the message.
The change in the security settings is applied to that storage system.
Disabling LUN Security
CAUTION: Do not disable LUN security on ports when host I/O is in progress.
To disable LUN security on a port:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, locate the desired port.
3.
See the text on the right of the port name to find LUN security status.
•
If LUN security is disabled, you do not need to go through the remaining steps in this procedure.
•
If LUN security is enabled, go to the next step.
4.
Select and right-click the port.
5.
Select LUN Security: Enable -> Disable from the pop-up menu.
A message appears informing you that only host group 0 (group #00) will be available if
LUN security is disabled.
6.
Click YES to close the message. A key is removed from the port icon.
7.
Click Apply in the LUN Manager window. A message appears and asks if you want to apply the setting to the storage system.
8.
Click OK to close the message. The change in the security settings is applied to that storage system.
If LUN security is disabled on a port, the host groups corresponding to that port are grayed out in the tree (except for host group 0).
Configuring the Storage System for Using RAID Manager
The system administrator can enter RAID Manager commands from open-system hosts to perform
XP Continuous Access and/or XP Business Copy operations on logical devices. For example, RAID
Manager commands can be used to create and split pairs. To enable the system administrator to enter RAID Manager commands from open-system hosts, you must specify at least one logical device as the command device. You can also apply command device security to other logical devices in the storage system.
NOTE: If a storage system is divided into SLPRs, and you want to prevent RAID Manager commands from affecting multiple SLPRs, you must apply command device security to the logical volumes.
Specifying Logical Devices as Command Devices
To enable the system administrator to execute RAID Manager commands from an open-system host, you must select at least one logical device that will not be manipulated by XP Continuous
Access or XP Business Copy, and then specify the device as the command device. When an RAID
Manager command is issued from a host, the command is received by the command device. The command device transfers the command to another logical device. Then, the command performs an XP Continuous Access or XP Business Copy operation on that logical device.
To specify a logical device as a command device:
Configuring the Storage System for Using RAID Manager 79
1.
Start LUN Manager and display the LUN Manager window.
2.
In the upper-right LU Path list or the lower-right LDEV list, select and right-click the desired logical device.
•
If nothing is displayed in the LU Path list, select a host group in the tree.
•
The icons and indicate command devices.
•
The icon indicates no logical device.
3.
From the pop-up menu, select Command Device: Disable -> Enable.
A message appears, asking if you want to use the logical device as a command device.
4.
Click the YES button to close the message.
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Deleting Command Devices
To delete a command device:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the upper-right LU Path list or the lower-right LDEV list, select and right-click a command device ( or ).
3.
From the pop-up menu, select Command Device: Enable -> Disable.
A message appears.
4.
Click the YES button to close the message.
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Enabling Command Device Security
To protect logical volumes from RAID Manager commands, you must apply command device security to the logical volumes. If command device security is applied to a logical device, the logical device will not be affected by RAID Manager commands issued via command devices from the hosts.
To apply command device security to a logical device:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the upper-right LU Path list or in the lower-right LDEV list, select and right-click the desired command device.
•
If nothing is displayed in the LU Path list, select a host group in the tree.
•
The icon indicates a logical volume to which command device security is already applied.
•
The icon indicates no logical device.
3.
Select Cmd. Dev. Security: Disable -> Enable from the pop-up menu.
A message appears asking if you want to apply command device security.
4.
Click the OK button to close the message.
80 Performing LUN Manager operations
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Related topic
To remove command device security from a logical device, you must select and right-click the logical device ( ) in the upper-right LU Path list or the lower-right
LDEV list and then select Cmd. Dev. Security: Enable -> Disable from the pop-up menu.
Releasing Command Device Security
To release command device security:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the upper-right LU Path list or in the lower-right LDEV list, select and right-click the desired command device.
The icon indicates a logical volume to which command device security is already applied.
3.
Select Cmd. Dev. Security: Enable -> Disable from the pop-up menu.
A message appears.
4.
Click the OK button to close the message.
5.
Click the Apply button in the LUN Manager window.
A message appears and asks if you want to apply the setting to the storage system.
6.
Click the OK button to close the message.
The settings are applied to the storage system.
Setting UUID
You can set an arbitrary ID to identify a logical volume from the host. This ID is called UUID .
To set a UUID:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, double-click a port. The host groups corresponding to the port appear.
3.
In the tree, select a host group. The LU Path list shows information about LU paths associated with the selected host group.
4.
In the LU Path list, select one or more LUNs to which volumes are assigned (if a volume is assigned to a LUN, the columns on the right of the LUN column are not empty). When plural
LUNs are selected, the same UUID is set to all selected LUNs.
5.
Right-click the selection and then select Set UUID. The Set UUID window opens ( Figure 47
and
Setting UUID 81
6.
In the Set UUID window (see
and
Figure 48 ), enter a UUID in the UUID box. If a
UUID is already specified in the UUID box, you can change it. However, if multiple LUNs, or
N/As are selected, the UUID box is blank.
•
For an OpenVMS server host, use a numerical value from 1 to 32,767 (see
).
•
For a server host other than OpenVMS, use up to 64 ASCII characters (letters, numerals, and symbols) for a UUID (see
). The following rules apply to UUIDs:
◦ The following characters cannot be used for UUIDs:
\ / : , ; * ? " < > |
◦ A space character cannot be used for the first and the last characters of a UUID.
◦ UUIDs are case-sensitive. For example, hp and HP are different UUIDs.
NOTE: Definition informations about devices set by LUN Manager are very important information to configure the system (for example, LUNs, LDKC:CU:LDEV, or UUID). HP recommends that you to make a correspondence table such as
When changing the server host OS from HP-UX to Open VMS, or from Open VMS to HP-UX, the same UUID cannot be used continuously. Clear the setting of UUID, and then set the proper
UUID for a server host, respectively. For more informations about clearing the setting of UUID, see
Table 9 An Example of a Correspondence Table for Definition Informations About Devices
Port LUN LDKC:CU:LDEV UUID
BR
BR
0000
0001
00:00:30
00:00:31
148
149
OpenVMS device file name
$1$dga148
$1$dga149
7.
Click OK to close the Set UUID window.
8.
Click Apply in the LUN Manager window. A message appears asking whether to apply the setting to the storage system.
9.
Click OK to close the message. The settings are applied to the storage system and the UUID is set.
Figure 47 Set UUID Window (When a OpenVMS Server Host is Used)
Figure 48 Set UUID Window (When a Server Host Other Than OpenVMS is Used)
82 Performing LUN Manager operations
NOTE: When the host mode 05 OpenVMS is used, the disk storage system version cannot be downgraded if a host mode option 33 is set to ON, or a UUID is set. If you want to downgrade the version, make sure the host mode option 33 is set to OFF, clear the setting of
UUID, and then perform the downgrade. Though a host mode option 33 is set to OFF and the setting of UUID is cleared, an alarm message may be displayed. In this case, retry the downgrade. For more informations about clearing the setting of UUID, see
.
Clearing the setting of UUID
You can clear the setting of UUID that is set to identify a logical volume from the host.
To clear the setting of UUID:
1.
Start LUN Manager and display the LUN Manager window.
2.
In the tree, double-click a port. The host groups corresponding to the port appear.
3.
In the tree, select a host group. The LU Path list shows information about LU paths associated with the selected host group.
4.
In the LU Path list, select one or more LUNs to which volumes are assigned (if a volume is assigned to a LUN, the columns on the right of the LUN column are not empty). When plural
LUNs are selected, the UUID of all selected LUNs will be cleared.
5.
Right-click the selection and then select Set UUID. The Set UUID window opens (
and
6.
Make the UUID box in the Set UUID window blank. If a UUID has been specified already, a
UUID is shown in the UUID box, and you can change it. However, if plural LUNs, or NAs are selected, a blank is shown in the UUID box.
7.
Click OK to close the Set UUID window.
8.
Click Apply in the LUN Manager window. A message appears asking whether to apply the setting to the storage system.
9.
Click OK to close the message. The settings are applied to the storage system and the UUID is set.
Clearing the setting of UUID 83

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Key features
- Configure and manage LUNs
- Define I/O paths
- Reconfigure LUs online
- Apply security policies
- Support alternative path failover
- Support path load balancing
- Support clustered systems