Connecting a CX4-480 Storage System in a Fibre Channel Direct or

CX4 Architecture for NS Series
Connecting a CX4-480 Storage
System in a Fibre Channel Direct
or Switch Configuration with a
Microsoft Windows Server with
Native Multipath Failover
December 6, 2008
If you want to connect the storage system in a Celerra NS-480 system
in a Fibre Channel direct or switch configuration with a new or existing
Microsoft Windows server with native multipath failover, this document is
for you. A Celerra NS-480 system uses a CX4-480 storage system.
The main topics are:
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Terminology.................................................................................. 2
Before you start ............................................................................. 4
Determining if your server has a supported configuration................ 6
Installing HBAs in the server.......................................................... 9
Installing or updating the HBA driver ............................................ 11
Installing the Admsnap utility and/or Admhost utility.................... 13
Connecting the storage system to the server in a Fibre Channel direct
configuration................................................................................ 18
Connecting the storage system to the server in a Fibre Channel
switch configuration ..................................................................... 21
Registering the server with the storage system ................................ 26
Verifying storage-system health...................................................... 30
Setting storage-system failover values for the server initiators with
Navisphere Manager..................................................................... 32
Verifying your high-availability Fibre Channel configuration ........... 34
Configuring an existing storage system........................................... 36
Preparing LUNs to receive data ...................................................... 41
Sending Windows disk information to the storage system ................ 42
Verifying your Windows Server 2008 native multipath failover
configuration................................................................................ 44
1
Terminology
This document uses the following terms:
2
host
A computer that is or will be connected to a CLARiiON® storage
system. This computer is called either a management station or a
server, depending on how it is or will be connected to the storage
system.
management station
A host from which you manage CLARiiON storage systems. It
must be on the same network as the storage-system management
ports. A management host may also be a server.
server
A host that is already or will be connected directly or through a
switch to the Fibre Channel ports on a CLARiiON storage system.
A management host may also be a server.
existing server
The server that is already configured for and connected to a
CLARiiON storage system.
new server
A server that is not already connected to or set up for a CLARiiON
storage system.
existing HBA
The host bus adapter (HBA) that is already installed in a server.
new HBA
The HBA that was not already installed in the server.
existing storage system
A storage system that is already connected to a server and
configured for storage.
field-replaceable unit
(FRU)
A storage-system component that you can add to your storage
system or replace in your storage system at your site. Examples
of FRUs are disks andpower/cooling modules.
SPE
A storage processor enclosure that contains two storage
processors (SPs) with I/O modules.
DAE
A disk-array enclosure that provides storage for a DAE. Each DAE
supports a maximum of 15 disks.
storage processor (SP)
A printed-circuit board with processors, memory modules, and
control logic that manages the I/O between the server and the
disk modules.
UltraFlex I/O module
A printed-circuit board with either Fibre Channel front-end ports
for Celerra blades or host I/O and/or back-end ports for I/O to
the disks.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
LUN
A grouping of physical disk partitions into one span of disk storage
space. Each LUN you create is distributed equally across the
disks in the RAID group. A LUN looks like an individual disk to
the server’s operating system.
RAID group
A set of disks with the same capacity and RAID type on which
you create one or more LUNs.
storage group
A group of one or more LUNs that you connect to a server
to provide the server access to the LUNs. Only the servers
connected to a storage group can access the LUNs in the storage
group.
A CX4 series storage system has two SPs, so it is called a dual-SP system.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
3
Before you start
❑ Read the release notes for your storage system, which are available
in the Technical Documentation and Advisories section on the
Powerlink® website.
❑ A Navisphere management station with a supported Internet
browser for running Navisphere Manager and on the same network
as the storage-system management ports. This host can also be
a server. For supported host and browsers, refer to the E-Lab™
Interoperability Navigator on the Powerlink website.
❑ A supported Windows host on the same subnet as the
storage-system management ports. You can use this host:
z
As a Navisphere management station
z
To run the Navisphere Service Taskbar, which runs only on
a Windows host.
z
As a CLARalert® monitor station, which must be a Windows
host, but cannot be a server (that is, it cannot send I/O to the
storage-system data ports).
❑ A supported Windows host that is or will be a server with Fibre
Channel connections to the storage system. This server must have
a supported server configuration; that is, it must have all required
updates, such as hot fixes or patches, installed.
❑ A Navisphere® management station with a supported Internet
browser that is on the same network as the storage-system
management ports. This host can also be the server or a Navisphere
off-array management station. For supported Internet browsers,
see the Navisphere Manager release notes in the Technical
Documentation and Advisories section of the Powerlink website.
❑ One or more supported Emulex or QLogic Fibre Channel host bus
adapters (HBAs), which may already be installed in the server.
These adapters must have the latest supported BIOS and driver.
Never mix Fibre Channel HBAs from different vendors in the same server.
❑ An optical cable for each storage-processor (SP) Fibre Channel
port you will use on the storage system. (Each storage processor
has two ports.) These cables may already be connected for a
4
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
configuration with an existing storage system or server. For cable
specifications, refer to the technical specifications for the storage
system in the Technical Documentation and Advisories section of
the Powerlink website.
❑ For a switch configuration – One or two Fibre Channel switches,
which may already be installed, and an optical cable for connecting
each HBA port to a switch port, if not already connected.
❑ A method for writing data to a LUN on the storage system that
will test the paths from the server to the storage system. You can
download an I/O simulator (Iometer) from the following website:
http://www.iometer.org/.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
5
Determining if your server has a supported configuration
Before you can determine if your server has a supported configuration,
you need to know the revision and patch level of the operating system
on the server.If you have this information, go to Verifying a server’s
configuration with E-Lab Interoperability Navigator, page 7 . If you do not
have this information, you can generate a server configuration report
for your server using the Navisphere Server Utility.
If you do not have the server utility installed, run it from the server support CD.
Starting the Navisphere Server Utility
You can run the server utility from the server or from the server
support CD.
For Windows servers, you must install version 6.20 or later of the server utility
on the server to use the utility’s registration service feature. This feature
automatically updates server information to the storage system.
Starting the Navisphere Server Utility on a Windows server
1. Run the Navisphere Server Utility by selecting Start > Programs
> EMC > Navisphere > Navisphere Server Utility or Start > All
Programs > EMC > Navisphere > Navisphere Server Utility.
2. Select your language, if prompted for it.
A text-based version of the utility is installed automatically when you
install the utility. To start the text-based version, at a command prompt
enter cd C:\Program Files\EMC\Navisphere Server Utility or cd
C:\Program Files (x86)\EMC\Navisphere Server Utility, then enter
NaviServerUtilCLI.exe.
Starting the Navisphere Server Utility on a Windows server from the CD
1. Log in to the Windows server as the administrator or someone who
has administrative privileges.
6
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
2. In the server’s drive, insert the server support CD, which shipped
with the storage system.
The server support menu opens. If you do not see the server
support menu, open it:
Š
From the Windows taskbar, select:
Start > Run
Š
In the Run dialog box, enter:
drive:\locales\en_US\start.html
where drive is the letter for the CD drive. Click OK.
3. From the main menu select Run Products from CD.
The RUN PRODUCTS page opens.
4. Select Navisphere Server Utility.
Generating a high-availability report for a server
1. In the Navisphere Server Utility dialog box, select Verify Server
High-Availability to generate a report of the server’s environment.
This option detects if PowerPath or some other failover software,
such as DMP, is running. After the verification, the utility generates
a summary report and saves it to the server.
2. In the summary report, select the Checklist tab to view the
information about the server that you need to compare against the
E-Lab Interoperability Navigator information.
Verifying a server’s configuration with E-Lab Interoperability Navigator
1. From your web browser, go to the Powerlink® website and log in.
2. If you are not registered with Powerlink, register and create a
username and password.
3. Select E-Lab Interoperability Navigator from the Tools menu on
the right-side of the home page.
4. From the E-Lab Interoperability Navigator page, select Launch
E-Lab Interoperability Navigator and then select the Wizards tab.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
7
5. From the drop-down menu, select the CLARiiON Wizards.
6. In Select a wizard, select Host Attach Wizard.
7. For each step of the wizard, provide the requested information
based on what is already installed on the server or what you intend
to install on the server.
If the configuration you entered is invalid, an additional step
appears in the wizard and a Results, EMC Support Statements
pane appears on the right with information to help you provide the
requested information in the additional step.
If the configuration you entered is valid, a Results link appears
on the right.
8. When the Results link appears, click it to view a report that contains
information about the configuration you entered.
9. Print and/or save a copy of the report.
10. Close the E-Lab Interoperability Navigator.
11. Compare this report to either the information that you know about
your server software or the checklist report you generated using
the server utility.
12. If your server software versions and/or patches or hot-fixes are not
listed in the Host Attach Wizard report, you need to upgrade to a
supported version or patch before continuing.
The Host Attach Wizard only displays options that are supported by
EMC. If any of the configuration information on the server utility’s high
availability report cannot be found in the wizard, then it is not supported.
8
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Installing HBAs in the server
Read this section for any configuration.
For the server to communicate with the storage-system Fibre Channel
data ports, the server must have one or more supported HBAs.
Before you start
To complete this procedure, you need one or more supported HBAs
with the latest supported BIOS and driver.
For information on supported HBAs, BIOS, and drivers, refer to the
E-Lab Interoperability Navigator on the Powerlink website.
Never mix HBAs from different vendors in the same server.
Installing HBAs
!
CAUTION
HBAs are very susceptible to damage caused by static discharge and
need to be handled accordingly. Before handling HBAs, observe
the following precautions:
Š
Store HBAs in antistatic bags.
Š
Use a ground (ESD) strap whenever you handle HBAs.
Š
Never plug or unplug HBAs with the power on. Severe
component damage can result.
1. If the server is powered up:
a. Shut down the server’s operating system.
b. Power down the server.
c. Unplug the server’s power cord from the power outlet.
2. Put on an ESD wristband, and clip its lead to bare metal on the
server’s chassis.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
9
3. For each HBA that you are installing:
a. Locate an empty PCI bus slot or a slot in the server that is
preferred for PCI cards.
b. Install the HBA following the instructions provided by the HBA
vendor.
c. If you installed a replacement HBA, reconnect the cables that
you removed in the exact same way as they were connected to
the original HBA.
4. Plug the server’s power cord into the power outlet, and power up
the server.
10
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Installing or updating the HBA driver
Read this section for any configuration.
The server must run a supported operating system and HBA driver.
EMC recommends that you install the latest supported version of the
driver. For information on the supported HBA drivers, refer to the
E-Lab Interoperability Navigator on the Powerlink website.
Before you start
To complete this procedure, you will need:
❑ The latest version of the supported HBA driver.
You can download the latest supported version and instructions
for installing the Emulex HBA driver from the vendor’s website:
http://www.emulex.com/ts/docoem/framemc.htm.
You can download the latest supported version and instructions
for installing the QLogic HBA driver from the vendor’s website:
http://support.qlogic.com/support/oem_emc.asp.
The HBA driver is also on the installation CD that ships with the HBA.
However, this version may not be the latest supported version.
❑ Any updates, such as hot fixes or service packs to the server’s
operating system that are required for the HBA driver version you
will install.
For information on any required updates, refer to one of the
following:
z
E-Lab Interoperability Navigator on the Powerlink website
z
The HBA vendor’s website
Installing the HBA driver
1. Install any updates, such as hot fixes or service packs, to the server’s
operating system that are required for the HBA driver version you
are installing.
2. If required by hot fix or patch, reboot the server.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
11
3. Install the driver following the instructions on the HBA vendor’s
website.
4. Reboot the server when the installation program prompts you to
reboot.
5. If the installation program did not prompt you to reboot, then
reboot the server when the driver installation is complete.
12
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Installing the Admsnap utility and/or Admhost utility
If you want the server to access snapshots of LUNs in the storage
system, you must install the Admsnap Utility on the server. If the
server is running Windows and want it to access LUNs that participate
in SAN Copy sessions, you must install Admhost Utility on the server.
The Admhost Utility is supported only on the following Microsoft
Windows platforms: Windows Server 2008, Windows Server 2003, or
Windows 2000.
For the supported versions of these operating systems, see the Admhost Release
Notes.
Installing the Admsnap Utility on a Windows server
EMC recommends that you install the most recent version of the
Admsnap Utility software that is appropriate for your configuration.
You can download the most recent version from the software download
page on the Powerlink website (CX4 series, CX3 series, CX series, and
AX4-5 series) or on the storage-system support website (AX series).
You can also install the software from the server support CD (any
storage system); however, the CD may not contain the most recent
version for your configuration.
1. Log in to the Windows server as the administrator or as someone
who has administrative privileges.
2. If admsnap is already installed, refer to Removing the Admsnap
Utility on a Windows server, page 17.
The remove step is needed because the installation program will not let
you install admsnap over an existing revision.
3. To download the software for CX4 series, CX3 series, CX series, or
AX4–5 series storage systems with Navisphere Manager, do the
following:
a. From the Navigator drop-down menu at the top right of the
Powerlink website, select Software Downloads and Patches.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
13
b. Select the appropriate Admsnap Utility version to download
and select the option to save the software to your server.
c. In the folder where you saved the software, double-click the
executable file for your operating system to start the installation
wizard.
4. To install the software from the server support CD (any storage
system), do the following:
a. In the server’s drive, insert the server support CD, which
shipped with the storage system.
The server support menu opens. If you do not see the server
support menu, follow the steps below to open it. If you have a
Windows Server 2008 Core system, the server support menu
will not open; skip to step 6 for information on starting the
executable.
Š
From the Windows taskbar, select:
Start > Run
Š
In the Run dialog box, enter:
drive:\locales\en_US\start.html
where drive is the letter for the CD drive. Click OK.
b. From the main menu select Install Products on Server.
The INSTALL PRODUCTS page opens.
c. Select Admsnap Utility and then select the Windows operating
system running on the server. The following options are
available:
Š
Admsnap Windows Server 2008
Š
Admsnap Windows Server 2003
5. For Windows Server 2008 Core systems, do the following:
a. Change to the CD drive, for example d:.
b. Navigate to the Windows admsnap utility directory.
cd windows\snap_view_admsnap
c.
14
Start the executable:
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
admsnap_win2k8.exe
6. Follow the instructions on the installation screens to install the
Admsnap Utility.
7. When the installation is complete, click Finish to exit the wizard.
If you selected the default destination folder, admsnap is installed
in one of the following:
Š
On Windows Server 2008 and 2003 (64-bit) systems
C:\Program Files (x86)\EMC\ Navisphere Admsnap
Š
On Windows Server 2008 and 2003 (32-bit) systems
C:\Program Files\EMC\Navisphere Admsnap
8. If you installed the Admsnap Utility from the CD, close the server
support menu by selecting Main Menu and then Exit. You can now
remove the CD from the server’s CD drive.
Installing the Admhost Utility on a Windows server
EMC recommends that you install the most recent version of the
Admhost Utility software that is appropriate for your configuration.
You can download the most recent version from the software download
page on the Powerlink website (CX4 series, CX3 series, CX series, and
AX4-5 series) or on the storage-system support website. You can also
install the software from the server support CD (any storage system);
however, the CD may not contain the most recent version for your
configuration.
1. Log in to the Windows server as the administrator or as someone
who has administrator privileges.
2. You cannot install admhost over an existing version. If you think
admhost is already installed, see Removing the Admhost Utility on a
Windows server, page 17.
3. To download the software for CX4 series, CX3 series, CX series, or
AX4–5 series storage systems, do the following:
a. From the Navigator drop-down menu at the top right of the
Powerlink website, select Software Downloads and Patches.
b. Select the appropriate Admhost Utility version to download
and select the option to save the software to your server.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
15
c. In the folder where you saved the software, double-click the
executable file to start the installation wizard.
4. To install the software from the server support CD (any storage
system), do the following:
a. In the server’s drive, insert the server support CD that shipped
with your storage system.
The server support menu opens. If you do not see the server
support menu, follow the steps below to open it. If you have a
Windows Server 2008 Core system, the server support menu
will not open; skip to step 6 for information on starting the
executable.
Š
From the Windows taskbar, select:
Start > Run
Š
In the Run dialog box, enter:
drive:\locales\en_US\start.html
where drive is the letter for the CD drive. Click OK.
b. From the main menu select Install Products on Server.
The INSTALL PRODUCTS page opens.
c. Select Admhost Utility and then select the Windows operating
system running on the server. The following three options are
available:
Š
Admhost Windows Server 2008
Š
Admhost Windows Server 2003
Š
Admhost Windows 2000
5. For Windows Server 2008 Core systems, do the following:
a. Change to the CD drive, for example d:.
b. Navigate to the Windows admhost utility directory.
cd windows\san_copy_admhost
c.
Start the executable:
admhost_win2k8.exe
16
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
6. Follow the instructions on the installation screens to install the
Admhost Utility.
7. When the installation is complete, click Finish to exit the wizard.
You have installed the admhost software. If you selected the
default destination folder, admhost is installed in the directory
C:\Program Files\EMC\Navisphere Admhost or C:\Program
Files (x86)\EMC\Navisphere Admhost.
8. If you installed the Admhost Utility from the CD, close the server
support menu by selecting Main Menu and then Exit. You can now
remove the CD from the server’s CD drive.
Removing the Admsnap Utility on a Windows server
1. Open Control Panel by selecting Start > Settings > Control Panel
or Start > Control Panel.
2. On the Control Panel pane, double-click Add/Remove Programs or
Program and Features.
3. Select Navisphere Admsnap and click Change/Remove or
Uninstall/Change.
4. If asked to confirm the removal, click OK and follow the steps to
remove the software program.
Removing the Admhost Utility on a Windows server
1. Open Control Panel by selecting Start > Settings > Control Panel
or Start > Control Panel.
2. On the Control Panel pane, double-click Add/Remove Programs or
Program and Features.
3. Select Navisphere Admhost and click Change/Remove or
Uninstall/Change.
4. If asked to confirm the removal, click OK and follow the steps to
remove the software program.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
17
Connecting the storage system to the server in a Fibre Channel
direct configuration
Use optical cables to connect storage-system Fibre Channel front-end
data ports to the server HBA ports.
Before you start
To complete this procedure, you need an optical cable for each Fibre
Channel front-end data SP port that you will use on the storage system.
For cable specifications, refer to the technical specifications for your
storage system in the Documentation and Technical Advisories section
of the Powerlink website or on the storage-system documentation and
resources CD, which shipped with the storage system.
Identifying storage-system Fibre Channel front-end ports for server connections
3
You can connect servers to any ports (0, 1, 2, 3) on the UltraFlex™Fibre
Channel I/O modules in slot A2 for SP A and in slot B2 for SP B (Figure
4):
10/100/1000
B0
Figure 1
B1
B2
B3
B4
A0
A1
0
0
0
0
0
0
1
2
10/100/1000
A2
A3
A4
CL4253
I/O module slots
Handling optical cables
Optical cables are susceptible to damage, so take the following
precautions when handling them:
18
Š
Keep the covers on all optical cables until you are ready to insert
them.
Š
Avoid tight bends. If you need to make a 90º bend, do it over 6 to
12 inches.
Š
Do not use optical cables to support weight (including their own
unsupported weight if they are long).
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Š
Do not pull long runs of cable; instead, lay the cable in place or pull
only a few feet at a time.
Š
Place the cables where no one can step on them or roll equipment
over them.
Cabling the Fibre Channel front-end data ports to the server HBA ports
For the highest availability with a multiple-HBA server:
Š
If the server has two HBAs, connect one HBA to a Fibre Channel
front-end port on SP A and the other HBA to a Fibre Channel
front-port on SP B.
Š
If the server has four HBAs, connect two HBAs to separate Fibre
Channel front-end ports on SP A, and the other two HBAs to
separate Fibre Channel front-end ports on SP B.
Š
If the server has more than four HBAs, connect an HBA to a Fibre
Channel front-end port on SP A and another HBA to a Fibre
Channel front-end port on SP B, and continue connecting an HBA
to a Fibre Channel front-end port on SP A and another next HBA to
a Fibre Channel front-end port on SP B until you have connected all
the HBAs or used all the available Fibre Channel front-end ports.
For each new HBA port you want to connect to a storage-system Fibre
Channel (FC) front-end data port:
1. Locate the FC front-end data port to which you will connect the
HBA port.
For information on identifying the front-end ports using Navisphere
Manager, refer to the Navisphere Manager help.
Applications such as MirrorView/A, MirrorView/S, or SAN Copy software
may restrict or require the use of certain SP ports. Refer to the application
documentation for specific cabling information.
2. Remove the protective covers from the optical connector on the
HBA port and from one end of an optical cable and plug the cable
into the HBA connector.
3. Remove the protective covers from the free end of the optical cable
and from the FC front-end data port connector on the storage
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
19
system’s storage processor, and plug the cable into the data port
connector (Figure 2 and Figure 3).
CL4021
Connecting an optical cable
3
Figure 2
10/100/1000
0
0
0
0
0
0
1
2
10/100/1000
CL4233
Figure 3
20
Sample cabling for a Fibre Channel direct configuration
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Connecting the storage system to the server in a Fibre Channel
switch configuration
Use optical cables to connect switch ports to the storage-system Fibre
Channel front-end data ports and to Fibre Channel switch ports and to
connect the switch ports to the server HBA ports.
Applications such as MirrorView™/A, MirrorView/S, or SAN Copy™
software may restrict or require the use of certain SP ports. Refer to the
application documentation for specific cabling information.
Before you start
To complete this procedure, you will need an optical cable for each
switch port you will use. Specifications for the optical cables that
connect the switch to the storage system are in the storage system’s
technical specifications in the documentation section of Powerlink.
Identifying storage-system Fibre Channel front-end ports for server connections
3
You can connect servers to any ports (0, 1, 2, 3) on the UltraFlex™Fibre
Channel I/O modules in slot A2 for SP A and in slot B2 for SP B (Figure
4):
10/100/1000
B0
Figure 4
B1
B2
B3
B4
A0
A1
0
0
0
0
0
0
1
2
10/100/1000
A2
A3
A4
CL4253
I/O module slots
Handling optical cables
Optical cables are susceptible to damage, so take the following
precautions when handling them:
Š
Keep the covers on all optical cables until you are ready to insert
them.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
21
Š
Avoid tight bends. If you need to make a 90º bend, do it over 6 to
12 inches.
Š
Do not use optical cables to support weight (including their own
unsupported weight if they are long).
Š
Do not pull long runs of cable; instead, lay the cable in place or pull
only a few feet at a time.
Š
Place the cables where no one can step on them or roll equipment
over them.
Cabling the Fibre Channel front-end data ports to the switch ports (if necessary)
For highest availability, connect one or more Fibre Channel front-end
data ports on SP A to ports on the switch and connect the same number
of Fibre Channel front-end data ports on SP B to ports on same switch
or on another switch, if two switches are available.
Customer-installable switches are easily configured. Some are preconfigured,
to use only ports 0 and 4 for SP connections and only ports 1-3 and 5-15
for HBA connections. With switches set up in such “hard zones,” you can
connect the Fibre ports only to ports 0 and 4 and HBAs only to ports 1–3 and
5–15. For highest availability with one of these “hard zoned” switches and a
multiple-HBA server, connect either Fibre port on SP A to switch port 0 and
either FE port on SP B to switch port 4.
For each Fibre Channel (FC) front-end data port on the storage system
that you will use for I/O with the server:
1. Locate the FC front-end data port to which you will connect the
switch port.
For information on identifying the front-end ports using Navisphere
Manager, refer to the Navisphere Manager help.
Applications such as MirrorView/A, MirrorView/S, or SAN Copy software
may restrict or require the use of certain SP ports. Refer to the application
documentation for specific cabling information.
22
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
2. Remove the protective cover from the FC front-end data port
connector on the SP and from one end of the optical cable, and plug
the cable into the data port connector (Figure 5 and Figure 6).
3. Remove the protective cover from the optical connector on the
switch port that you will use and from the free end of the optical
cable, and plug the cable into the switch port (Figure 5 and Figure 6).
CL4021
Connecting an optical cable
3
Figure 5
10/100/1000
0
0
0
0
0
0
1
2
10/100/1000
CL4231
Figure 6
Sample cabling between a storage system and two switches
Cabling the switch ports to the server HBA ports (if necessary)
For highest availability in a multiple-HBA server, connect one or more
HBA ports to ports on the switch and connect the same number of HBA
ports to ports on same switch or on another switch, if two switches
are available.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
23
For each server HBA port that you will use for I/O with the storage
system:
1. Remove the protective cover from the FC switch port connector
and from one end of the optical cable, and plug the cable into the
connector.
3
2. Remove the protective cover from the server HBA port connector
and from the free end of the optical cable, and plug the cable into
the HBA port connector (Figure 7).
10/100/1000
0
0
0
0
0
0
1
2
10/100/1000
CL4232
Figure 7
Sample cabling for a Fibre Channel switch configuration
Zoning the switches
You must use switch management software to update switch software
and zone switches that are not hard zoned.
1. Connect the switch management ports to the network from which
you will manage the switches.
2. If the switches are not running the most recent supported firmware
version, install this software from the switch vendor’s website.
24
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
For information on the supported switch firmware versions, see the E-Lab
Interoperability Navigator on Powerlink.
3. Locate the zoning wizard CD that shipped with the switch.
4. Using the instructions provided with the CD, run the zoning wizard
and select the zone configuration that is applicable to the way that
you connected the storage-system Fibre ports and the server HBA
ports to the switch.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
25
Registering the server with the storage system
Read this section for any configuration.
Run the Navisphere Server Utility or Navisphere Host Agent on each
server connected to the storage system to register the server’s HBAs
with the storage system.
Running the Navisphere Server Utility for Windows
You can run the Navisphere Server Utility for Windows from the server,
if you installed the utility on the server, or from the server support CD,
which shipped with the storage system.
Starting the Navisphere Server Utility on a Windows server
1. Run the Navisphere Server Utility by selecting Start > Programs
> EMC > Navisphere > Navisphere Server Utility or Start > All
Programs > EMC > Navisphere > Navisphere Server Utility.
2. Select your language, if prompted for it.
A text-based version of the utility is installed automatically when you
install the utility. To start the text-based version, at a command prompt
enter cd C:\Program Files\EMC\Navisphere Server Utility or cd
C:\Program Files (x86)\EMC\Navisphere Server Utility, then enter
NaviServerUtilCLI.exe.
Starting the Navisphere Server Utility on a Windows server from the CD
1. Log in to the Windows server as the administrator or someone who
has administrative privileges.
2. In the server’s drive, insert the server support CD, which shipped
with the storage system.
The server support menu opens. If you do not see the server
support menu, open it:
Š
From the Windows taskbar, select:
Start > Run
Š
26
In the Run dialog box, enter:
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
drive:\locales\en_US\start.html
where drive is the letter for the CD drive. Click OK.
3. From the main menu select Run Products from CD.
The RUN PRODUCTS page opens.
4. Select Navisphere Server Utility.
Registering the server using the Navisphere Server Utility on a Windows
1. If the host agent is running, stop the host agent service.
2. In the Navisphere Server Utility dialog box, select Register this
server to all connected storage systems.
The utility automatically scans for all connected storage systems
and lists them under Connected Storage Systems. Locate the WWN
of the HBA you just installed. The HBA should appear once for
every SP port it is connected to.
If the utility is already running, it does not automatically perform a scan,
and you must click Rescan.
3. Click Next to register the server with the storage system.
The utility sends the server’s name and WWN of the HBA to each
storage system. Once the server has storage on the storage system,
the utility also sends the device name and volume or file system
information for each LUN (virtual disk) in the storage system that
the server sees.
4. Click Finish to exit the utility.
5. If you stopped the host agent, restart it.
Starting the Navisphere Host Agent
Starting the host agent on a server automatically registers the server’s
HBAs with the storage system.
Starting the host agent
1. At the Windows server, log in as the administrator or the equivalent.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
27
2. Open the Services pane.
Š
From the desktop, right-click My Computer and select
Manage > Services and Applications > Services.
or
Š
Select Start > Administrative Tools > Computer Management
> Services and Applications > Services.
The Services pane opens.
3. In the Services pane, right-click Navisphere Agent and select Start.
4. If you want the host agent to start automatically at system startup:
a. Right-click Navisphere Agent and select Properties.
The Navisphere Agent Properties dialog box opens.
b. Select the General tab.
c. In Startup Type, select Automatic.
5. Close Computer Management.
The host agent will now start automatically at system startup.
It may take a few minutes for the host agent to start when:
Š
Applications are using the storage system, or
Š
The SP event log is large and the host agent configuration file is
not set up.
Verifying HBA registration with Navisphere Manager
1. From the Navisphere Manager Storage tree, right-click the icon for
the storage system for which you want to verify HBA registration,
and click Connectivity Status.
The Connectivity Status dialog box opens.
2. Verify that the server to SP port connection is displayed as Yes
under the Registered columns.
If not, refer to the “Troubleshooting Flowcharts” section on the
CLARiiON Tools page on the Powerlink website.
28
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
To access the CLARiiON Tools page, use the Navigator drop-down menu
at the top right of the Powerlink home page.
Once all HBAs belonging to a server are registered, you can assign
the server to storage groups.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
29
Verifying storage-system health
Read this section for any configuration.
Use the storage system verification wizard that is part of the Navisphere
Service Taskbar to:
Š
Validate the connectivity of the storage-system hardware
components
Š
Check back-end functionality
Š
Check the status of all field-replaceable units
Š
Analyze storage-system logs
You download the NST from a link on the CLARiiON Tools page of the
Powerlink website to a Windows management station that is connected to the
storage-system’s management ports. If you do not have a Windows
management station, your service provider may run this wizard.
To access the CLARiiON Tools page, use the Navigator drop-down menu at
the top right of the Powerlink home page.
1. If you do not have the Navisphere Service Taskbar running:
a. Download and install the Navisphere Service Taskbar from the
CLARiiON Tools page on the Powerlink website to a Windows
management station that is connected to the storage-system’s
management ports.
To access the CLARiiON Tools page, use the Navigator drop-down
menu at the top right of the Powerlink home page.
b. Start the Navisphere Service Taskbar by doing one of the
following:
30
Š
Click the Navisphere Service Taskbar icon on your desktop,
or
Š
Select Start > Programs > EMC > Navisphere > Navisphere
Service Taskbar version > Navisphere Service Taskbar
version
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
2. In the taskbar’s navigation pane, select the Hardware Maintenance
tab.
3. In the tab’s navigation pane, select Verify Storage System.
4. If the Navisphere Connection screen opens:
a. Enter the IP address for an SP in the storage system.
b. Click Connect.
c. Enter your Navisphere login username, password, and scope
(global, local, or LDAP) and click OK.
Once you connect to a storage system, you do not need to reconnect to it
again during the NST session. To connect to a different storage system, you
must disconnect the current storage system by selecting File > Disconnect.
5. Review the report that the wizard generates, and if it lists any
problems try to resolve them.
For assistance in resolving any problems, see the troubleshooting
flowcharts for the storage system on the CLARiiON Tools page of
the Powerlink website.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
31
Setting storage-system failover values for the server initiators with
Navisphere Manager
Use the Navisphere Manager Failover Setup Wizard to set the
storage-sytem failover values for all HBA initiators belonging to the
server:
1. Start Navisphere Manager for the storage system.
2. In the Tools menu, click Failover Setup Wizard.
3. In the Start Wizard dialog box, read the introduction, and then
click Next.
4. In the Select Host dialog box, select the server you just connected to
the storage system, and click Next.
5. In the Select Storage Systems dialog box, select the storage system,
and click Next.
6. In the Specify Settings dialog box, set the following values for the
type of software running on the server:
IMPORTANT
If you enter incorrect values the storage system could become
unmanageable and unreachable by the server, and the server’s
failover software could stop operating correctly.
For a Windows server with native multipath failover, set:
Š
Initiator Type to CLARiiON Open
Š
Array CommPath to Enabled
Š
Failover Mode to 4
7. In Configuration Summary, review the configuration and all
settings.
8. If the settings are correct, click Next , and if the settings are
incorrect, click Back until return to the dialog box in which you
need to re-enter the correct values.
If you clicked Next, the wizard displays a confirmation dialog box.
9. In the confirmation dialog box, click Yes.
32
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
The wizard displays a summary of the success of the operation to
set the values for the storage system.
10. If the operation failed, rerun the Failover Setup Wizard again.
11. When the operation is successful, click Finish to close the wizard.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
33
Verifying your high-availability Fibre Channel configuration
Read this section for any Fibre Channel configuration.
Use the server high-availability feature in the Navisphere Server
Utility to verify the following for each server in a high-availability
configuration with the storage system:
Š
Your Fibre Channel configuration is highly available (that is, each
Fibre Channel HBA has at least one active path to each storage
processor).
Š
Path management software is installed and running on the server.
Before you start
If the Navisphere Server Utility is not installed on the server, locate the
server support CD, which shipped with the storage system.
Starting the Navisphere Server Utility on a Windows server
1. Run the Navisphere Server Utility by selecting Start > Programs
> EMC > Navisphere > Navisphere Server Utility or Start > All
Programs > EMC > Navisphere > Navisphere Server Utility.
2. Select your language, if prompted for it.
A text-based version of the utility is installed automatically when you
install the utility. To start the text-based version, at a command prompt
enter cd C:\Program Files\EMC\Navisphere Server Utility or cd
C:\Program Files (x86)\EMC\Navisphere Server Utility, then enter
NaviServerUtilCLI.exe.
Starting the Navisphere Server Utility on a Windows server from the CD
1. Log in to the Windows server as the administrator or someone who
has administrative privileges.
2. In the server’s drive, insert the server support CD, which shipped
with the storage system.
34
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
The server support menu opens. If you do not see the server
support menu, open it:
Š
From the Windows taskbar, select:
Start > Run
Š
In the Run dialog box, enter:
drive:\locales\en_US\start.html
where drive is the letter for the CD drive. Click OK.
3. From the main menu select Run Products from CD.
The RUN PRODUCTS page opens.
4. Select Navisphere Server Utility.
Using the server utility to verify your high-availability configuration
1. In the Navisphere Server Utility dialog box, select Verify Server
High-Availability.
2. Select Valid Server Configuration only.
3. In the Select Host Type screen, select Local host and click Next.
4. In the Select Report Directory screen, select the location where the
high availability status report should be saved. Click Next.
5. Read the summary and if it is accurate, click Next to generate the
report. If not, click Back to return to the screen where you need
to correct the data.
The utility determines if the server is configured for high availability
by verifying that the server has at least one connection path to
each storage system SP, and that PowerPath or some other failover
software, such as DMP, is running. It does not detect native failover
software, such as Windows Server 2008 native failover.
6. Review and resolve any issues reported under the Issues tab of the
generated report before continuing with the installation process.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
35
Configuring an existing storage system
Read this section if you are configuring an existing storage system. An
existing storage system is one that was already connected to a server
when you started the installation procedure.
Configure the storage system with Navisphere Manager.
To configure a storage system with Navisphere Manager, use either the
Navisphere taskbar wizards or the Storage tree options of Navisphere
Manager.
Before you start
You need the completed storage-system disk information worksheet
from the storage-system configuration planning guide or planning
worksheets document. You can generate this guide using the
user-customized documentation link from the CLARiiON Tools page
on the Powerlink website.
To access the CLARiiON Tools page, use the Navigator drop-down menu at
the top right of the Powerlink home page.
Allocating storage to an existing storage system with the Navisphere taskbar wizards
Starting with UI version 6.28.10.xx, the Allocate wizard has been
renamed to Provision wizard. Like the Allocate wizard, use the
Provision wizard, found in the Navisphere Manager taskbar, to create
storage system storage and provide server access to this storage.
You allocate storage with the Navisphere Provision or Allocate wizard
only to additional servers, that is, servers connected to Fibre Channel
ports . You cannot use this wizard to allocate storage to a Celerra host.
1. Locate your completed storage-system disk information worksheet
so you can refer to it in the steps that follow.
2. In the Navisphere taskbar, click the Storage Management tab.
3. If you need additional LUNs for the server, use the Provision or
Allocate wizard on the Storage Management tab to create them.
36
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
4. If you want to assign existing LUNs to the server, use the Assign
wizard on the Storage Management tab to assign them.
For high availability, a host can connect to only one storage group per
storage system at a time. If you connect a host that is already connected
to another storage group, the host will disconnect from the first storage
group. When you disconnect a host from a storage group, and then connect
it to a different storage group, the host can no longer perform I/O to the
first storage group.
5. Verify that a server was assigned to the storage group.
If you know the name of the storage group in which the LUNs
reside — In the Navisphere Manager Storage tree:
Š
Click the icon for the storage system with the storage group
whose server connection you want to verify.
Š
Click the Storage Groups icon.
Š
Click the icon for the storage group.
If the server is assigned to a storage group, an icon for that
server appears under the storage group icon.
If you know the name of the server to which the storage group is
assigned — In the Navisphere Manager Hosts tree:
Š
Click the icon for the server to which you assigned the LUNs
and whose server connections you want to verify.
Š
Click the LUNs icon and confirm that the new LUNs are listed.
If you do not see any of the LUNs you just created, you may not
have selected the Assign LUNs to a server option in the Select
Servers page of the Provision wizard. You can use the Assign
wizard to assign the LUNs to a server.
Allocating storage to an existing storage system with the storage tree options
1. Locate your completed storage-system disk information worksheet
so you can refer to it in the steps that follow.
2. Create additional traditional LUNs on new or existing RAID groups.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
37
To create traditional LUNs on RAID Groups— In the Navisphere
Manager Storage tree, depending on the UI and FLARE version
that you identified earlier, right-click the storage-system icon and
do one of the following:
Š
Click Storage Pools Operations > Create LUNs ; create a new
RAID group or select an existing one; create new LUNs on the
RAID group.
Š
Click Bind LUN; create a new RAID group or select an existing
one; bind LUNs on the RAID group
For details on creating traditional LUNs and RAID groups, use
the Navisphere Manager help.
3. Create any additional storage groups that you need for the server.
To create storage groups — In the Navisphere Manager tree,
right-click the icon for the storage system, and click Create Storage
Groups. For details on creating storage groups, use the Navisphere
Manager help
4. Add the new LUNs you created to new or existing storage groups.
Adding a LUN to a storage group makes the LUN accessible to the servers
connected to the storage group. If a LUN is placed in more than one storage
group, all servers in those storage groups must be in a cluster configuration.
To add LUNs to storage groups — Right-click the icon for the
storage group to which you want to add LUNs, and click Select
LUNs. For details on adding LUNs to storage groups, use the
Navisphere Manager help.
5. Assign a server to a new or existing storage group.
To assign servers to storage groups — In the Navisphere Manager
tree, right-click the icon for the storage group to which you want
to assign a server, and then click Connect Hosts. For details on
assigning servers to storage groups, use the Navisphere Manager
help.
38
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
For high availability, a host can connect to only one storage group per
storage system at a time. If you connect a host that is already connected
to another storage group, the host will disconnect from the first storage
group. When you disconnect a host from a storage group, and then connect
it to a different storage group, the host can no longer perform I/O to the
first storage group.
6. Verify that the server was assigned to the storage group.
To verify that a server is assigned to a storage group — In the
Navisphere Manager tree:
Š
Click the icon for the storage system with the storage group
whose server connection you want to verify.
Š
Click the Storage Groups icon.
Š
Click the icon for the storage group.
If the server is assigned to a storage group, an icon for that
server appears under the storage group icon.
Verifying that each LUN is fully initialized using Navisphere Manager
Although the storage group with a new LUN is assigned to the
server, the server cannot see the new LUN until it is fully initialized
(completely bound). The time to complete the initialization process
varies with the size of the LUN and other parameters. While a LUN is
initializing, it is in a transitioning state, and when the initialization is
complete, its state becomes normal.
To determine the state of a LUN
1. In the Navisphere Manager Storage tree, navigate to the LUN you
want to verify.
2. Right-click the LUN and click Properties.
3. Verify that the state of the LUN is Normal.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
39
If the state is Transitioning, wait for the state to change to Normal
before continuing.
Making LUNs visible to a Windows server
To allow the Windows server access to the LUNs that you created,
perform a rescan.
40
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Preparing LUNs to receive data
Read this section if you created LUNs on the storage system.
If you do not want to use a LUN as a raw disk or raw volume, then
before Windows can send data to a LUN, you must:
❑ Use Navisphere Manager or to verify that each new LUN is
initialized and to write a signature to it.
❑ Either create partitions on a basic disk or create the appropriate
volumes on a dynamic disk, as described in the documentation for
your operating system version.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
41
Sending Windows disk information to the storage system
Read this section for any configuration.
If the Navisphere Host Agent is installed on the server, start or restart
(stop and then start) it to send to the storage system the operating
system’s device name and volume or file system information for
each LUN that the server sees. Navisphere Manager displays this
information on its LUN Properties — Host page for each LUN.
The Navisphere Server Utility does not send operating system LUN mapping
information to the storage system.
Stopping the host agent
1. At the Windows server, log in as the administrator or the equivalent.
2. Open the Services pane.
Š
From the desktop, right-click My Computer and select
Manage > Services and Applications > Services.
or
Š
Select Start > Administrative Tools > Computer Management
> Services and Applications > Services.
The Services pane opens.
3. In the Services pane, right-click Navisphere Agent and select Stop.
4. If asked to confirm your request to stop the agent service, click Yes,
and close the Services pane or dialog box.
Starting the host agent
1. At the Windows server, log in as the administrator or the equivalent.
2. Open the Services pane.
Š
42
From the desktop, right-click My Computer and select
Manage > Services and Applications > Services.
or
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Š
Select Start > Administrative Tools > Computer Management
> Services and Applications > Services.
The Services pane opens.
3. In the Services pane, right-click Navisphere Agent and select Start.
4. If you want the host agent to start automatically at system startup:
a. Right-click Navisphere Agent and select Properties.
The Navisphere Agent Properties dialog box opens.
b. Select the General tab.
c. In Startup Type, select Automatic.
5. Close Computer Management.
The host agent will now start automatically at system startup.
It may take a few minutes for the host agent to start when:
Š
Applications are using the storage system, or
Š
The SP event log is large and the host agent configuration file is
not set up.
Verifying that the storage system received the LUN information using Navisphere
Manager
1. Start Navisphere Manager on the storage system with the LUNs.
2. For each LUN in the storage system that is connected to the server,
display its Navisphere Manager LUN Properties — Hosts page:
a. In the Navisphere Manager Storage tree, navigate to the LUN
you want to verify.
b. Right-click the icon for the LUN, and click Properties.
3. Verify that the Properties page displays a physical device and
logical device name for the LUN.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
43
Verifying your Windows Server 2008 native multipath failover
configuration
If your server has a high-availability configuration, that is, at least
one HBA path to each SP on the storage system, your environment
is enabled for failover and you can proceed to verify your failover
configuration for a dual-SP storage system.
If you do not have a high-availability configuration, you have a single
SP, and an SP failure leaves the server without access to the data. If you
have a single SP with only one HBA, your environment is not enabled
for failover. An HBA failure leaves the server without access to the data.
Disconnecting a path from the HBA side of a switch causes an HBA failover,
while disconnecting all paths to an active SP causes the paths to fail over to
the other SP.
Before you start
Before you store data on LUNs or , use the procedure in this section to
verify that:
Š
The server can send data to and receive data from the storage
system.
You can download an I/O simulator (Iometer) for writing data to the
storage system from the following website: http://www.iometer.org/.
44
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Š
Windows native multipath failover shows the paths from the server
to the LUN that you expect for your configuration.
Verifying your dual-SP failover configuration with Windows Server 2008 native multipath
failover
IMPORTANT
If you have multiple CLARiiON storage systems connected to the
server, you will not be able to tell from MPIO which paths connect
to which storage system.
This test applies to a server with two single-port HBAs connected
directly to different storage-system SPs.through a switch to the
storage-system SPs.
1. Find an SP in the storage system with Active/Optimized paths
between it and the server:
a. Select Computer Management > Device Management > Disk
Drives.
b. Right-click any DGC RAID disk device and select Disk
Properties.
c. In the Multi-Path Disk Device Properties window, find a
path with a TPG state of Active/Optimized and determine the
storage-system SP for the path from the TPG ID:
TPG ID of 1 = SP A
TPG ID 2 = SP B
2. Use Navisphere Manager to determine which LUNs are owned by
the SP and record them. After the test, you need to return these
LUNs to this SP, which is their original SP owner.
3. Disconnect the cables from all the ports on this SP.
4. View the properties window for the disk device, and verify the
following path information:
Š
The paths to the SP from which you disconnected the cables no
longer appear in the paths list.
Š
The TPG state of the paths to the other SP is Active/Optimized,
indicating that I/O continues through the remaining paths and
that native failover is working properly.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
45
5. Reconnect the cables that you disconnected from the SP.
6. For each LUN that was owned by the SP before you disconnected
cables from the SP, use the Navisphere Manager LUN Properties
dialog box to return the LUN to this SP (the LUN’s original SP
owner).
7. Verify the paths to the SP for which you tested failover:
a. Select Computer Management > Device Management > Disk
Drives.
b. Right-click any DGC RAID disk device and select Disk
Properties.
c. In the Multi-Path Disk Device Properties window, verify that
all paths to the SP have a TPG state of Active/Optimized.
46
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration with a
Microsoft Windows Server with Native Multipath Failover
Copyright© 2008 EMC Corporation. All Rights Reserved.
EMC believes the information in this publication is accurate as of its publication date. The
information is subject to change without notice.
THE INFORMATION IN THIS PUBLICATION IS PROVIDED "AS IS." EMC CORPORATION
MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WITH RESPECT TO
THE INFORMATION IN THIS PUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Use, copying, and distribution of any EMC software described in this publication requires an
applicable software license.
For the most up-to-date regulatory document for your product line, go to the Technical
Documentation and Advisories section on EMC Powerlink.
For the most up-to-date listing of EMC product names, see EMC Corporation Trademarks on
EMC.com.
All other trademarks mentioned herein are the property of their respective owners.
Connecting a CX4-480 Storage System in a Fibre Channel Direct or Switch Configuration
with a Microsoft Windows Server with Native Multipath Failover
47
Open as PDF
Similar pages