Sun Storage 6580 and 6780 Array

Sun Storage 6580 and 6780 Array
Hardware Release Notes, Release 6.9.x
Part No.: E24027-02
March 2012
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Contents
Sun Storage 6580 and 6780 Array Hardware Release Notes
What’s In This Firmware Release
1
Downloading Patches and Updates
2
Cache Battery Expiration Notification
About the Array
1
3
3
System Requirements
3
Firmware Requirements
4
Disk Drives and Tray Capacity
4
Solid State Disk Requirements
6
Array Expansion Tray Support
6
Data Host Requirements
7
Multipathing Software
7
Supported Host Bus Adaptors (HBAs)
9
Supported FC and Multilayer Switches
Supported Premium Features
14
15
Device Mapper Multipath (DMMP) for the Linux Operating System
Device Mapper Features
16
16
Known Limitations and Issues of the Device Mapper
Installing the Device Mapper Multi-Path
17
17
iii
Setting Up the multipath.conf File
18
Installing the Device Mapper Multi-Path for SLES 11.1 18
Copy and Rename the Sample File
19
Determine the Attributes of a MultiPath Device
Modify Vendor ID and Product ID
Using the Device Mapper Devices
Troubleshooting the Device Mapper
Restrictions and Known Issues
20
22
23
24
Installation and Hardware Related Issues
Controller Issues
Linux Issues
26
28
Documentation Issues
Product Documentation
33
34
Documentation, Support, and Training
iv
35
Sun Storage 6580 and 6780 Hardware Release Notes • March 2012
24
19
Sun Storage 6580 and 6780 Array
Hardware Release Notes
This document contains important release information about the Sun Storage 6580
and 6780 arrays running Sun Storage Common Array Manager (CAM), Version 6.9.x.
Read about issues or requirements that can affect the installation and operation of
the arrays.
The release notes consist of the following sections:
■
“What’s In This Firmware Release” on page 1
■
“About the Array” on page 3
■
“System Requirements” on page 3
■
“Device Mapper Multipath (DMMP) for the Linux Operating System” on page 16
■
“Restrictions and Known Issues” on page 24
■
“Product Documentation” on page 34
■
“Documentation, Support, and Training” on page 35
What’s In This Firmware Release
Array controller firmware version 7.80.xx.xx provides Sun Storage Common Array
Manager enhancements and bug fixes as described in the Sun Storage Common Array
Manager Software Release Notes.
1
Downloading Patches and Updates
To download Sun Storage Common Array Manager, as well as server patches
pertaining to the Sun Storage 6580 and 6780 arrays, follow this procedure.
1. Sign in to My Oracle Support:
https://support.oracle.com/
2. At the top of the page, click the Patches & Updates tab.
3. Search for CAM software and patches in one of two ways:
■
If you have a patch number:
a. Under the Patch Search section, click the Search tab.
b. In the Patch Name or Number field, enter the patch number. For example,
10272123 or 141474-01.
c. Click Search.
■
If you do not have a patch number:
a. Under the Patch Search section, click the Search tab, and then click the
Product or Family (Advanced Search) link.
b. Check Include all products in a family.
c. In the Product field, start typing the product name. For example, “Sun
Storage Common Array Manager (CAM)” or “Sun Storage 6580 array.”
d. Select the product name when it appears.
e. In the Release field, expand the product name, check the release and patches
you want to download, and then click Close.
f. Click Search.
4. Select the patch you want to download.
5. Click ReadMe for a patch description and installation instructions.
6. Click Download for a single patch, or Add to Plan to download a group of
patches.
2
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Cache Battery Expiration Notification
Sun Storage 6580 and 6780 arrays use smart battery technology which maintains and
reports its own status, providing a more accurate reporting of battery status. When a
battery can no longer hold a charge, the battery is flagged for replacement, rather
than a battery expiration report provided by the array firmware.
About the Array
The Sun Storage 6580 and 6780 array models are compared in TABLE 1.
TABLE 1
Comparison of Sun Storage 6580 and 6780 Array Configurations
6580
6780
Total cache size per array
8, 16, or 32 Gbytes
8, 16, 32, or 64 Gbytes
Number of host ports
8 4-Gbit/second or 8
G-bit/second
8 or 16 4-Gbit/second or
8-Gbit/second
Host interface cards
2
2 or 4
Maximum number of drives supported
256
448
Disk reads
IOPS* 115K
Throughput 3000
MB/second
IOPS* 175K
Throughput 6400
MB/second
Maximum array configuration
1x16
1x28
Maximum raw capacity
512 Tbytes
896 Tbytes
* Input/output operations per second
Note – Upgrading from a 61x0 array to a Sun Storage 6580 or 6780 array is a datain-place migration.
System Requirements
The software and hardware products that have been tested and qualified to work
with the Sun Storage 6580 and 6780 arrays are described in the following sections.
■
“Firmware Requirements” on page 4
Sun Storage 6580 and 6780 Array Hardware Release Notes
3
■
“Disk Drives and Tray Capacity” on page 4
■
“Solid State Disk Requirements” on page 6
■
“Array Expansion Tray Support” on page 6
■
“Data Host Requirements” on page 7
Firmware Requirements
The firmware version for Sun Storage 6580 and 6780 arrays features described in this
release note is version 07.80.xx.xx. This firmware version (or higher) is installed on
the array controllers prior to shipment and is also delivered with the latest version
of Sun Storage Common Array Manager (CAM).
To update controller firmware on an existing array:
1. Download the software as described in “Downloading Patches and Updates” on
page 2.
2. Log into Sun Storage Common Array Manager.
3. Select the check box to the left of the array you want to update.
4. Click Install Firmware Baseline.
5. Follow the wizard instructions.
Disk Drives and Tray Capacity
TABLE 2 lists the size, spindle speed, type, interface speed, and tray capacity for the
supported Fibre Channel (FC), Serial Advanced Technology Attachment (SATA), and
Solid State Disk (SSD) disk drives for Sun Storage 6580 and 6780 arrays. Additional
legacy drives might also be supported with this product.
Note – For special requirements concerning FC Solid State Disks (SSDs), see “Solid
State Disk Requirements” on page 6.
4
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
TABLE 2
Supported Disk Drives
Drive
Description
FC, 73GB, Solid State Disk
73-Gbyte SSD drives
(4 Gbits/sec); 1168 Gbytes per tray
FC, 146G15K
146-Gbyte 15,000-RPM FC drives
(4 Gbits/sec); 2336 Gbytes per tray
FC, 300G15K
300-Gbyte 15,000-RPM FC drives
(4 Gbits/sec); 4800 Gbytes per tray
FC, 400G10K
400-Gbyte 10,000-RPM FC drives
(4 Gbits/sec): 6400 Gbytes per tray
FC, 450G15K
450-Gbyte 15,000-RPM FC drives
(4 Gbits/sec); 7200 Gbytes per tray
SATA-2, 500G7.2K
500-Gbyte 7,200-RPM SATA drives
(3 Gbits/sec); 8000 Gbytes per tray
FC, 600GB15K,
Encryption Capable
600-Gbyte 15,000-RPM FC drives
Encryption Capable
(4 Gbits/sec); 9600 Gbytes per tray
SATA-2, 750G7.2K
750-Gbyte 7,200-RPM SATA drives
(3 Gbits/sec); 12000 Gbytes per tray
SATA-2, 1T7.2K
1-Tbyte 7,200-RPM SATA drives
(3 Gbits/sec); 16000 Gbytes per tray
SATA-2, 2TB7.2K
2-Tbyte 7,200-RPM SATA drives
(3 Gbits/sec); 32000 Gbytes per tray
Sun Storage 6580 and 6780 Array Hardware Release Notes
5
Solid State Disk Requirements
Solid State Drives (SSDs) have the following installation requirements:
■
A maximum of 20 SSD drives can be installed in a single array.
■
While it is technically possible to populate an entire tray with SSD drives (16
drives), it is recommended to distribute SSD drives across multiple drive
channels.
■
SSD drives can be mixed with other drive types in a single tray, but cannot be
mixed within the same volume group.
Array Expansion Tray Support
To add capacity to a Sun Storage 6580 or 6780 array, refer to the following Service
Advisor procedures:
■
Adding Expansion Trays
■
Upgrade Firmware
Caution – To add trays with existing stored data, contact Oracle Support for
assistance to avoid data loss.
TABLE 3
Supported Expansion Trays and IOM Codes
Array Controller
Firmware
Supported Expansion
Tray
IOM Code
Sun Storage 6580 and
Sun Storage 6780
07.80.51.10
CSM200
98D6
CSM100 FC
9682
CSM100 iSATA
9728
Note – FLAxxx and FLCxxx expansion trays are not supported on Sun Storage 6580
and Sun Storage 6780 arrays with this firmware release.
■
6
For additional baseline firmware information, such as controller, NVSRAM, disk
drive, version, and firmware file, see Sun Storage Array Baseline Firmware Reference.
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Data Host Requirements
This section describes supported data host software, HBAs, and switches.
■
“Multipathing Software” on page 7
■
“Supported Host Bus Adaptors (HBAs)” on page 9
■
“Supported FC and Multilayer Switches” on page 14
■
“Supported Premium Features” on page 15
Multipathing Software
TABLE 4 provides a summary of the data host requirements for the Sun Storage 6580
and 6780 arrays. It lists the current multipathing software and supported host bus
adapters (HBAs) by operating system.
You must install multipathing software on each data host that communicates with
Sun Storage 6580 and 6780 arrays.
Note – Single path data connections are not recommended. For more information,
see “Single Path Data Connections” on page 24.
TABLE 4 lists supported multipathing software by operating system.
TABLE 4
Multipathing Software
Operating System
Solaris
10*
Multipathing
Software
Minimum Version
Host Type Setting
Notes
STMS/MPxIO
Update 6
Solaris with
MPxIO
Multipathing software
is included in
Solaris OS 10
Solaris 10 with DMP
Symantec Veritas 5.0MP3
Dynamic MultiPathing (DMP)
Solaris with DMP
Windows 2003 SP2 R2
Non-clustered
MPIO
01.03.0302.0504
Windows 2003
Non-clustered
Windows 2003/2008
MSCS Cluster
MPIO
01.03.0302.0504
Windows Server
2003 Clustered
Windows 2003
Non-clustered with DMP
DMP
5.1
Windows Server
See Symantec
2003 Non-clustered Hardware
(with Veritas DMP) Compatibility List
(HCL)
You must use MPIO
for 7.10 and above
Sun Storage 6580 and 6780 Array Hardware Release Notes
7
TABLE 4
Multipathing Software (Continued)
Multipathing
Software
Minimum Version
Host Type Setting
Windows 2003 Clustered
with DMP
DMP
5.1
Windows Server
See Symantec HCL
2003 clustered
(with Veritas DMP)
Windows Server 2008 R2
SP1
(64-bit only)
MPIO
01.03.0302.0504
Windows Server
2003
Oracle VM 2.2.2
RDAC
09.03.0C02.0331
Linux
Oracle Linux 6.0, 5.6, 5.5
RDAC
09.03.0C02.0453
Linux
Unbreakable Linux
DMMP
SUSE Linux Enterprise
Server 11 SP1 and 10 SP3
RDAC/MPP
DMMP
09.03.0C00.0453
Linux
SLES 10.4, 10 SP1
RDAC/MPP
09.03.0C02.0453
Linux
Red Hat 6.0, 5.6, 5.5
RDAC
09.03.0C00.0453
Linux
Red Hat 4, SLES 10
RDAC/MPP
09.03.0C00.0453
Linux
Red Hat SLES with DMP
DMP
5.0MP3
Linux with DMP
VMware ESX(i) 4.1 U1
and 5.0
Native
Multipathing
(NMP)
HPUX
Veritas DMP
5.0MP3
HP-UX
See Symantec HCL
AIX 6.1, 5.3
Cambex DPF
6.1.0.63
AIX
Not supported with
CAM 6.9, firmware
7.80.xx.xx, but is
supported with CAM
6.8.1 firmware
7.77.xx.xx
AIX 6.1, 5.3 with DMP
DMP
5.0
AIX with DMP
Not supported with
CAM 6.9, firmware
7.80.xx.xx, but is
supported with CAM
6.8.1 firmware
7.77.xx.xx
Operating System
Unbreakable
RDAC version
09.03.0C02.0331 is
included with Oracle
VM 2.2.2
DMMP is included
with the Unbreakable
OS.
See Symantec HCL
VMware
* Oracle recommends installing the latest Solaris update.
8
Notes
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Note – Download the multipathing drivers from My Oracle Support at
https://support.oracle.com. Search for the driver using one of the keywords
“MPIO,” “RDAC,” or “MPP.” See “Downloading Patches and Updates” on page 2.
Note – The multipathing driver for the IBM AIX platform is Veritas DMP, bundled
in Veritas Storage Foundation 5.0 for Sun Storage 6580 and 6780 arrays. Download
the Array Support Library (ASL) from http://support.veritas.com/.
Supported Host Bus Adaptors (HBAs)
TABLE 5, TABLE 6, and TABLE 7 list supported HBAs and other data host platform
elements by operating system.
To obtain the latest HBA firmware:
■
For Fibre Channel HBAs, download firmware from My Oracle Support using
keyword “HBA.” For download instructions, see “Downloading Patches and
Updates” on page 2.
■
For other HBA support information, refer to the manufacturer’s web site.
Download operating system updates from the web site of the operating system
company.
Sun Storage 6580 and 6780 Array Hardware Release Notes
9
Note – Always install the multipathing software before you install any OS patches.
TABLE 5
Operating
System
Supported HBAs for Solaris Data Host Platforms
Minimum OS
Sun 2-Gbit HBAs
Sun 4-Gbit HBAs
Sun 8-Gb HBAs
Solaris 10
SPARC*
Update 6
SG-XPCI1FC-QL2 (6767A)
SG-XPCI2FC-QF2-Z (6768A)
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-Q8
SG-XPCIEFCGBE-E8
Solaris 10
x64/x86
Update 6
SG-XPCI1FC-QL2 (6767A)
SG-XPCI2FC-QF2-Z (6768A)
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-E8
SG-XPCIEFCGBE-Q8
* Oracle recommends installing the latest Solaris update.
10
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
TABLE 6
Host OS /
Servers
Supported HBAs for Microsoft Windows Data Host Platforms
HBAs*
Sun 2-Gb HBAs
Sun 4-Gb HBAs
Sun 8-Gb HBAs
Microsoft
Windows
Server
2008 R2
SP1 (64-bit
only ) /
AMD x86
and
EM64T
QLogic:
QLE 256x
QLE 246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LPe12000/LPe12002/ LPe1250
Lpe11000/LPe11002/LPe1150
LP11000/LP11002/LP1150
LP9802/9802DC/982
LP952/LP9002/LP9002DC
10000/10000DC/LP1050
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-Q8
SG-XPCIEFCGBE-E8
Microsoft
Windows
Server
2003 SP2
R2 / AMD
x86 and
EM64T
QLogic:
QLE 256x
QLE 246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LPe12000/LPe12002/LPe1250
Lpe11000/LPe11002/LPe1150
LP11000/LP11002/LP1150
LP9802/9802DC/982
LP952/LP9002/LP9002DC
10000/10000DC/LP1050
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-E8
SG-XPCIEFCGBE-Q8
Sun Storage 6580 and 6780 Array Hardware Release Notes
11
TABLE 6
Host OS /
Servers
Microsoft
Windows
2003
64-bit with
SP2 R2 /
x64
(AMD)
EM64T
IA64
Supported HBAs for Microsoft Windows Data Host Platforms (Continued)
HBAs*
Sun 2-Gb HBAs
Sun 4-Gb HBAs
Sun 8-Gb HBAs
QLogic:
QLE 256x
QLE 246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LPe12000/LPe12002/LPe1250
Lpe11000/LPe11002/LPe1150
LP11000/LP11002/LP1150
LP9802/9802DC/982
LP952/LP9002/LP9002DC
10000/10000DC/LP1050
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-Q8
SG-XPCIEFCGBE-E8
* Refer to the HBA manufacturer’s web site for support information.
TABLE 7
Supported HBAs for Linux Data Host Platforms
Host OS
HBAs*
Sun 2-Gb HBAs
Sun 4-Gb HBAs
Sun 8-Gb HBAs
SLES 11
SP1, 10.4,
10 SP3
QLogic:
QLE 256x
QLE246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LP982/LP9802/9802DC
LP9002/LP9002DC/LP952
LP10000/10000DC/LP1050
LP11000/LP11002/LP1150
Lpe11000/LPe11002/
LPe1150/Lpe12000/
LPe12002/Lpe1250
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4
SG-XPCI2FC-EM4
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-E8
SG-XPCIEFCGBE-Q8
12
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
TABLE 7
Supported HBAs for Linux Data Host Platforms (Continued)
Host OS
HBAs*
Sun 2-Gb HBAs
Sun 4-Gb HBAs
Sun 8-Gb HBAs
Oracle
Linux 6.0,
5.6, 5.5;
Oracle VM
2.2.2;
RHEL 6.0,
5.6, 5.5
QLogic:
QLE 256x
QLE 246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LP982/LP9802/9802DC
LP9002/LP9002DC/LP952
LP10000/10000DC/LP1050
Lpe11000/LPe11002/LPe1150
Lpe12000/LPe12002/LPe1250
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4-Z
SG-XPCI2FC-EM4-Z
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-Q8
SG-XPCIEFCGBE-E8
RHEL 4u7 QLogic:
RHEL 4.8 QLE 256x
QLE 246x
QLA 246x
QLA 234x
QLA 2310F
Emulex:
LP982/LP9802/9802DC
LP9002/LP9002DC/LP952
LP10000/10000DC/LP1050
Lpe11000/LPe11002/LPe1150
Lpe12000/LPe12002/Lpe1250
SG-XPCI1FC-EM2
SG-XPCI2FC-EM2
SG-XPCI1FC-QL2
SG-XPCI2FC-QF2-Z
SG-XPCIE1FC-QF4
SG-XPCIE2FC-QF4
SG-XPCIE1FC-EM4
SG-XPCIE2FC-EM4
SG-XPCI1FC-QF4
SG-XPCI2FC-QF4
SG-XPCI1FC-EM4-Z
SG-XPCI2FC-EM4-Z
SG-XPCIE2FCGBE-Q-Z
SG-XPCIE2FCGBE-E-Z
SG-XPCIE1FC-QF8-Z
SG-XPCIE2FC-QF8-Z
SG-XPCIE1FC-EM8-Z
SG-XPCIE2FC-EM8-Z
SG-XPCIEFCGBE-Q8
SG-XPCIEFCGBE-E8
* Refer to the HBA manufacturer’s web site for support information.
Sun Storage 6580 and 6780 Array Hardware Release Notes
13
TABLE 8
Other Supported Data Host Platforms
HP-UX 11.31
HP RISC
IA64
HP A6795A
HP A6826A
HP A6684A
HP A6685A
HP AB378A
HP AB379A
HP AD300A
HP AD355A
AH400A (IA64)
AH401A (IA64)
HP-UX B.11.23
HP RISC
IA64
HP
HP
HP
HP
HP
HP
HP
IBM AIX 5.2, 5.3, 6.1
Power
IBM
IBM
IBM
IBM
IBM
A6795A
A6826A
A9784A
AB378A
AB379A
AD300A
AD355A
5716
5758
5759
6228
6239
Supported FC and Multilayer Switches
The following FC fabric and multilayer switches are compatible for connecting data
hosts and Sun Storage 6580 and 6780 arrays:
14
■
Sun StorEdge Network 2 Gb FC Switch - 8, 16, and 64
■
Brocade SilkWorm 200E/300/4100/4900/5000/5100/5300/7500/48000/DCX
■
Cisco 9124/9134/9216/9216i/9222i/9506/9509/9513
■
McDATA 6140/i10K/QPM 4 Gb blade for 6140
■
QLogic SANBox 5602/9000
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Supported Premium Features
Tier 1 Support
The Sun Storage 6180 arrays support the Tier 1 classified licensable features. Tier 1
classified arrays include the StorageTek 6140 and Sun Storage 6180 arrays.
Available licenses for the Sun Storage 6180:
■
Domains: Base 8 domains
■
Domains Upgrade: Upgrade from 8 to 128 domains
■
Copy Services: Snapshot and Volume Copy
■
Disk Encryption Service
■
Remote Volume Mirroring
Tier 2 Support
The Sun Storage 6580 and 6780 arrays support the below Tier 2 classified arrays
licensable features.Tier 2 classified arrays include the StorageTek 6540, Sun Storage
6580, and Sun Storage 6780 arrays.
Available licenses for the Sun Storage 6580 and 6780 arrays:
■
Domains: Base 16 domains
■
Domains Upgrade: Upgrade from 16 to 256 domains
■
Domains Upgrade: Upgrade from 256 to 512 domains
■
Copy Services: Snapshots and Volume Copy
■
Disk Encryption Service
■
Remote Volume Mirroring
Sun Storage 6580 and 6780 Array Hardware Release Notes
15
Device Mapper Multipath (DMMP) for
the Linux Operating System
Device Mapper (DM) is a generic framework for block devices provided by the
Linux operating system. It supports concatenation, striping, snapshots, mirroring,
and multipathing. The multipath function is provided by the combination of the
kernel modules and user space tools.
The DMMP is supported on SUSE Linux Enterprise Server (SLES) Version 11 and
11.1. The SLES installation must have components at or above the version levels
shown in the following table before you install the DMMP.
TABLE 9
Minimum Supported Configurations for the SLES 11 Operating System
Version
Component
Kernel version
kernel-default-2.6.27.29-0.1.1
Scsi_dh_rdac kmp
lsi-scsi_dh_rdac-kmp-default0.0_2.6.27.19_5-1
Device Mapper library
device-mapper-1.02.27-8.6
Multipath-tools
multipath-tools-0.4.8-40.6.1
To update a component, download the appropriate package from the Novell website
at http://download.novell.com/patch/finder. The Novell publication, SUSE
Linux Enterprise Server 11 Installation and Administration Guide, describes how to
install and upgrade the operating system.
Device Mapper Features
16
■
Provides a single block device node for a multipathed logical unit
■
Ensures that I/O is re-routed to available paths during a path failure
■
Ensures that the failed paths are revalidated as soon as possible
■
Configures the multipaths to maximize performance
■
Reconfigures the multipaths automatically when events occur
■
Provides DMMP features support to newly added logical unit
■
Provides device name persistency for DMMP devices under /dev/mapper/
■
Configures multipaths automatically at an early stage of rebooting to permit the
OS to install and reboot on a multipathed logical unit
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Known Limitations and Issues of the Device
Mapper
■
When storage is configured with AVT mode, delays in device discovery might
occur. Delays in device discovery might result in long delays when the operating
system boots.
■
In certain error conditions with no_path_retry or queue_if_no_path
feature set, applications might hang forever. To overcome these conditions, you
must enter the following command to all the affected multipath devices: dmsetup
message device 0 "fail_if_no_path", where device is the multipath
device name (for example, mpath2; do not specify the path).
■
An I/O hang might occur when a volume is unmapped without first deleting the
DM device. Note: This limitation applies to only the SUSE 11 OS.
■
Stale entries might not be noticed in multipath -ll output if the volumes are
unmapped or deleted without first deleting the DM device and its underlying
paths. Note: This limitation applies to only the SUSE 11 OS.
■
Currently, the mode select command is issued synchronously for each LUN.
With large LUN configurations, slower failovers for DM multipath devices might
occur if there is any delay in completing of the mode select command. Note:
This limitation applies to only the SUSE 11 OS.
■
If the scsi_dh_rdac module is not included in initrd, slower device discovery
might occur, and the syslog might get populated with buffer I/O error messages.
■
If the storage vendor and model are not included in scsi_dh_rdac device handler,
slower device discovery might be seen, and the syslog might get populated with
buffer I/O error messages.
■
Use of the DMMP and RDAC failover solutions together on the same host is not
supported. Use only one solution at a time.
Installing the Device Mapper Multi-Path
1. Use the media supplied by your operating system vendor to install SLES 11.
2. Install the errata kernel 2.6.27.29-0.1.
Refer to the SUSE Linux Enterprise Server 11 Installation and Administration Guide
for the installation procedure.
3. To boot up to 2.6.27.29-0.1 kernel, reboot your system.
4. On the command line, enter rpm -qa |grep device-mapper, and check the
system output to see if the correct level of the device mapper component is
installed.
■
If the correct level of the device mapper component is installed—Go to Step 5.
Sun Storage 6580 and 6780 Array Hardware Release Notes
17
■
If the correct level of the device mapper component is not installed, install the
correct level of the device mapper component or update the existing
component. Then, go to Step 5.
5. On the command line, enter rpm -qa |grep multipath-tools and check
the system output to see if the correct level of the multipath tools is installed.
■
If the correct level of the multipath tools is installed, go to Step 6.
■
If the correct level of the multipath tools is not installed, install the correct level
of the multipath tools or update the existing multipath tools. Then, go to
Step 6.
6. Update the configuration file /etc/multipath.conf.
See “Setting Up the multipath.conf File” on page 18 for detailed information
about the /etc/multipath.conf file.
7. On the command line, enter chkconfig multipathd on.
This command enables multipathd daemon when the system boots.
8. Edit the /etc/sysconfig/kernel file to add directive scsi_dh_rdac to
the INITRD_MODULES section of the file.
9. Download the KMP package for scsi_dh_rdac for the SLES 11 architecture from
the website http://forgeftp.novell.com/driverprocess/staging/pub/update/lsi/sle11/common/, and install the
package on the host.
10. Update the boot loader to point to the new initrd image, and reboot the host
with the new initrd image.
Setting Up the multipath.conf File
The multipath.conf file is the configuration file for the multipath daemon,
multipathd. The multipath.conf file overwrites the built-in configuration table
for multipathd. Any line in the file whose first non-white-space character is # is
considered a comment line. Empty lines are ignored.
Installing the Device Mapper Multi-Path for SLES 11.1
All of the components required for DMMP are included in SUSE Linux Enterprise
Server (SLES) version 11.1 installation media. However, users might need to select
the specific component based on the storage hardware type. By default, DMMP is
disabled in SLES. You must follow the following steps to enable DMMP components
on the host.
18
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
1. On the command line, type chkconfig multipath on.
The multipathd daemon is enabled with the system starts again.
2. Edit the /etc/sysconfig/kernel file to add the directive scsi_dh_rdac to
the INITRD_MODULES section of the file.
3. Create a new initrd image using the following command to include
scsi_dh_rdac into ram disk:
mkinitrd -i /boot/initrd -r -rdac -k /bootvmlinuz
4. Update the boot leader to point to the new initrd image, and reboot the host
with the new initrd image.
Copy and Rename the Sample File
Copy and rename the sample file located at
/usr/share/doc/packages/multipath-tools/multipath.conf.synthetic
to /etc/multipath.conf. Configuration changes are now accomplished by
editing the new /etc/multipath.conf file. All entries for multipath devices are
commented out initially. The configuration file is divided into five sections:
■
defaults—Specifies all default values.
■
blacklist—All devices are blacklisted for new installations. The default blacklist is
listed in the commented-out section of the /etc/multipath.conf file. Blacklist
the device mapper multipath by WWID if you do not want to use this
functionality.
■
blacklist_exceptions—Specifies any exceptions to the items specified in the
section blacklist
■
devices—Lists all multipath devices with their matching vendor and product
values
■
multipaths—Lists the multipath device with their matching WWID values
Determine the Attributes of a MultiPath Device
To determine the attributes of a multipath device, check the multipaths section of the
/etc/multipath.conf file, then the devices section, then the defaults section. The
model settings used for multipath devices are listed for each storage array and
include matching vendor and product values. Add matching storage vendor and
product values for each type of volume used in your storage array.
For each UTM LUN mapped to the host, include an entry in the blacklist section of
the /etc/multipath.conf file. The entries should follow the pattern of the
following example.
Sun Storage 6580 and 6780 Array Hardware Release Notes
19
blacklist {
device {
vendor "*"
product "Universal Xport"
}
}
Modify Vendor ID and Product ID
The following example shows the devices section from the /etc/multipath.conf
file. Be sure the vendor ID and the product ID for the Sun Storage 6580 and 6780
arrays are set as shown in this example:
devices {
device {
vendor
"SUN"
product
"STK6580_6780"
path_grouping_policy group_by_prio
prio
rdac
getuid_callout
"/lib/udev/scsi_id -g -u -d /dev/%n"
polling_interval
5
path_checker
rdac
path_selector
"round-robin 0"
hardware_handler
"1 rdac"
failback immediate
features
"2 pg_init_retries 50"
no_path_retry
30
rr_min_io
100
}
}
20
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
The following table explains the attributes and values in the devices section of the
/etc/multipath.conf file.
TABLE 10
Attributes and Values in the multipath.conf File
Attribute
Parameter Value
Description
path_grouping_policy
group_by_prio
The path grouping policy to be applied
to this specific vendor and product
storage.
prio
rdac
The program and arguments to
determine the path priority routine.
The specified routine should return a
numeric value specifying the relative
priority of this path. Higher numbers
have a higher priority.
getuid_callout
"/lib/udev/
The program and arguments to call out
scsi_id -g -u - to obtain a unique path identifier.
d /dev/%n"
polling_interval
5
The interval between two path checks,
in seconds.
path_checker
rdac
The method used to determine the state
of the path.
path_selector
"round-robin 0" The path selector algorithm to use
when there is more than one path in a
path group.
hardware_handler
"1 rdac"
The hardware handler to use for
handling device-specific knowledge.
failback
10
A parameter to tell the daemon how to
manage path group failback. In this
example, the parameter is set to 10
seconds, so failback occurs 10 seconds
after a device comes online. To disable
the failback, set this parameter to
manual. Set it to immediate to force
failback to occur immediately.
Sun Storage 6580 and 6780 Array Hardware Release Notes
21
TABLE 10
Attributes and Values in the multipath.conf File (Continued)
Attribute
Parameter Value
Description
features
"2
Features to be enabled. This parameter
pg_init_retries sets the kernel parameter
50"
pg_init_retries to 50. The
pg_init_retries parameter is used
to retry the mode select commands.
no_path_retry
30
Specify the number of retries before
queuing is disabled. Set this parameter
to fail for immediate failure (no
queuing). When this parameter is set to
queue, queuing continues indefinitely.
rr_min_io
100
The number of I/Os to route to a path
before switching to the next path in the
same path group. This setting applies if
there is more than one path in a path
group.
Using the Device Mapper Devices
Multipath devices are created under /dev/ directory with the prefix dm-. These
devices are the same as any other bock devices on the host. To list all of the
multipath devices, run the multipath –ll command. The following example
shows system output from the multipath –ll command for one of the multipath
devices.
mpathp (3600a0b80005ab177000017544a8d6b92) dm-0 LSI,INF-01-00
[size=5.0G][features=3 queue_if_no_path
pg_init_retries 50][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=6][active] \_ 5:0:0:0
sdc 8:32
[active][ready] \_
round-robin 0 [prio=1][enabled] \_ 4:0:0:0
sdb 8:16
[active][ghost]
22
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
In this example, the multipath device node for this device is /dev/mapper/mpathp
and /dev/dm-0. The following table lists some basic options and parameters for the
multipath command.
TABLE 11
Options and Parameters for the multipath Command
Command
Description
multipath -h
Prints usage information
multipath -ll
Shows the current multipath topology from all available
information (sysfs, the device mapper, path checkers, and so on)
multipath -f map
Flushes the multipath device map specified by the map option, if
the map is unused
multipath -F
Flushes all unused multipath device maps
Troubleshooting the Device Mapper
TABLE 12
Troubleshooting the Device Mapper
Situation
Resolution
Is the multipath daemon,
multipathd, running?
At the command prompt, enter the command:
/etc/init.d/multipathd status.
Why are no devices listed
when you run the
multipath -ll
command?
At the command prompt, enter the command: #cat
/proc/scsi/scsi. The system output displays all of the
devices that are already discovered.
Verify that the multipath.conf file has been updated with
proper settings.
Sun Storage 6580 and 6780 Array Hardware Release Notes
23
Restrictions and Known Issues
The following sections provide information about restrictions, known issues, and
bugs filed against this product release:
■
“Installation and Hardware Related Issues” on page 24
■
“Controller Issues” on page 26
■
“Linux Issues” on page 28
■
“Documentation Issues” on page 33
If a recommended workaround is available for a bug, it follows the bug description.
Installation and Hardware Related Issues
This section describes known issues and bugs related to installing and initially
configuring Sun Storage 6580 and 6780 arrays. This section describes general issues
related to Sun Storage 6580 and 6780 array hardware and firmware.
Single Path Data Connections
In a single path data connection, a group of heterogeneous servers is connected to an
array through a single connection. Although this connection is technically possible,
there is no redundancy, and a connection failure will result in loss of access to the
array.
Caution – Because of the single point of failure, single path data connections are
not recommended.
Setting the Tray Link Rate
When setting the tray link rate for an expansion tray, all expansion trays connected
to the same drive channel must be set to operate at the same data transfer rate
(speed).
For details about how to set the tray link rate, see “Setting the Tray Link Rate” in the
Hardware Installation Guide for Sun Storage 6580 and 6780 Arrays.
24
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Upgrading the StorageTek 6540 Array
CR 6783749—When upgrading a StorageTek 6540 array to a Sun Storage 6580 or
6780 Array, you cannot change the tray ID 85 to tray ID 99 using CAM.
Workaround: You can use controller tray ID 85 for array configurations up to a
maximum of 256 drives.
Replacing CRUs/FRUs in Less Than 15 Minutes
Caution – Without adequate ventilation and air circulation, the controller tray will
overheat resulting in potential damage to all customer-replaceable units (CRUs) or
field-replaceable units (FRUs). Do not allow any CRU/FRU slot to remain empty for
an extended time. Replace the failed CRU/FRU within 15 minutes.
System Cabinet Doors Must Be Closed
Caution – The front and back doors of the system cabinet must be closed for
compliance to domestic and international EMI regulations as well as proper
equipment cooling. Do not block or cover the openings of the system cabinet.
Cabinet airflow is from front to back. Allow at least 30 inches (76.2 cm) in front of
the cabinet, and at least 24 (60.96 cm) inches behind the cabinet, for service
clearance, proper ventilation, and heat dissipation.
The cfgadm -c unconfigure Command Unconfigures UTM LUNs
Only and Not Other Data LUNs (Solaris 10)
CR 6362850—The cfgadm -c unconfigure command unconfigures Universal
Transport Mechanism (UTM) LUNs only and not other data LUNs. When this
happens, you will not be able to unconfigure LUNs.
Workaround: Obtain Solaris 10 patch 118833-20 (SPARC) or patch 118855-16 (x86) to
fix this issue.
Intermittent Power Supply Failure Notification
CR 6760395: CAM logEvent messages intermittently reports power supply failures
and 12 seconds later changes to optimal. This is caused by devices not responding to
polling.
Sun Storage 6580 and 6780 Array Hardware Release Notes
25
Workaround: No workaround required. You can ignore the failure messages.
Tray ID Diagnostic Codes
See Appendix C, Troubleshooting and Operational Procedures, in the Hardware
Installation Guide for Sun Storage 6580 and 6780 Arrays for a description of the
controller tray and expansion tray diagnostic codes.
Replacement drive comes in unassigned in an empty storage pool
Bug 7006425—If you create a storage pool with no volumes, a replacement disk
drive role is reported as “unassigned.”
Workaround—Delete the empty storage pool and create a new storage pool
containing at least one volume.
Controller Issues
I/O FAILURE Messages and Illegal Requests in Logs
Bug 7097416—When an OVM2.2.2 or OEL 5.5 SLES host with Oracle Hardware
Management Package(OHMP) daemon enabled is mapped to volumes on a 6180
array, it is possible to receive IO FAILURE and Illegal Request ASC/ASCQ log
events.
Workaround—Either disable OHMP or disregard the messages. This is an issue with
the host OS.
Incorrect controller cache block size can cause an ancient I/O
Bug 7110592—Firmware 07.80.51.10 can cause ancient I/O reboots if the cache block
size does not match the application I/O size.
Workaround—Ensure the application I/O size can fit into one cache block. If the
cache block size is too small for the application I/O size, it will results in a shortage
of an internal structure known as a buf_t. By setting the cache block size to match
the I/O size, the correct number of buf_t’s will be available and the ancient I/O will
be avoided.
To set the cache block size, go to the Administration page for the selected array.
Firmware revision 07.80.x.x supports the following cache block sizes:
26
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
2500-M2: 4k, 8k, 16k, 32k
6x80:
4k, 8k, 16k, 32k
I/O Errors Occur During Controller Firmware Download
Configuration:
■
Red Hat Enterprise Linux (RHEL) version 6 with kernel 2.6.32 only.
■
PowerPC
■
Emulex 10N9824 HBA
■
Device Mapper Multipath (DMMP) failover driver
■
Sun Storage 2500-M2 controller tray
■
Sun Storage 6180 controller tray
Note – This problem does not occur in RHEL version 6.0 with kernel 2.6.33.
Problem or Restriction: An I/O error occurs during an online controller firmware
upgrade.
Workaround: To avoid this problem, quiesce the host I/O before the performing
controller firmware upgrades. To recover from this problem, make sure that the host
reports that it has optimal paths available to the storage array controllers, and then
resume I/O.
Both RAID Controllers Reboot After 828.5 Days—2500/6000 Arrays
CR 6872995, 6949589—Both RAID controllers reboot after 828.5 days of continuous
operation. A timer in the firmware (vxWorks) called “vxAbsTicks” is a 32-bit (double
word) integer that keeps count in the 0x0000 0000 format. When this timer rolls over
from 0xffffffff to 0x00000000 (after approximately 828.5 days), if there is host I/O to
volumes, the associated drives fail with a write failure.
Original Resolution: Every 24 hours, firmware spawns a task--cfgMonitorTask--that
checks the value of the vxworks kernel timing counter. For controllers with 03.xx06.60 firmware (6000 series) and 03.xx-6.70 firmware (2500 series): Both controllers
reboot if counter is greater than 825 days.
Final Resolution: Every 24 hours, firmware spawns a task--cfgMonitorTask--that
checks the value of the vxworks kernel timing counter.
This fix staggers the reboots of the controllers for approximately five days so the
only impact is a small performance degradation while the reboot occurs.
Sun Storage 6580 and 6780 Array Hardware Release Notes
27
For controllers with firmware 07.15.11.12 or later (6000 series) and firmware
07.35.10.10 or later (2500 series): Controller A reboots if counter is greater than 820
days. Controller B reboots if counter is greater than 825 days.
Note – There is no redundancy for failover in a simplex 2500 configuration or any
duplex configuration where a controller is already offline for any reason.
Linux Issues
Linux RDAC 09.03.0C02.0453 - Make Install Dependencies
Configuration:
■
Red Hat Enterprise Linux (RHEL) or Oracle Linux version 5.5 or 5.6
■
RDAC driver version 09.03.0C02.0453
Problem or Restriction: CR 7042297—Before running a "make" on the RDAC driver,
the following kernel packages are required:
■
kernel-2.6.18-194.el5
■
kernel-devel-2.6.18-194.el5.x86_64.rpm
■
kernel-headers-2.6.18-194.el5.x86_64.rpm
■
glibc-headers-2.5-49.x86_64.rpm
■
glibc-devel-2.5-49.x86_64.rpm
■
libgomp-4.4.0-6.el5.x86_64.rpm
■
gcc-4.1.2-48.el5.x86_64.rpm
Log Events Using SLES 11.1 With smartd Monitoring Enabled
CR 7014293—When a SLES 11.1 host with smartd monitoring enabled is mapped to
volumes on either a Sun Storage 2500-M2 or Sun Storage 6780 array, it is possible to
receive “IO FAILURE” and “Illegal Request ASC/ASCQ” log events.
Workaround: Either disable smartd monitoring or disregard the messages. This is an
issue with the host OS.
28
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Oracle Linux 6 Bootd With Messages
CR 7038184, 7028670, 7028672: When booting an Oracle Linux 6.0 host mapped to
volumes on Sun Storage 2500-M2 and Sun Storage 6780 arrays, it is possible to
receive one of these messages:
FIXME driver has no support for subenclosures (1)
FIXME driver has no support for subenclosures (3)
Failed to bind enclosure -19
Workaround: This is a cosmetic issue with no impact to the I/O path. There is no
workaround.
IO FAILURE Messages and Illegal Requests in Logs
Operating System: SLES Linux Enterprise Server 11.1 SP1
Problem or Restriction CR 7014293: Several IO FAILURE and Illegal Requests log
events with ASC/ASQ SCSI errors appear in /var/log/messages while running
vdbench on 25 LUNs.
An application client may request any one or all of the supported mode pages from
the device server. If an application client issues a MODE SENSE command with a
page code or subpage code value not implemented by the logical unit, the command
shall be terminated with CHECK CONDITION status, with the sense key set to
ILLEGAL REQUEST, and the additional sense code set to INVALID FIELD IN CDB.
The controller responds correctly (05h/24h/00h -INVALID FIELD IN CDB). The
smartctl tool may need to ask all supported mode pages first before sending a
unsupported mode page request.
Workaround: Disable SLES11 smartd monitoring service to stop these messages.
System Services (Runlevel) > smartd
Disable
Cluster Startup Fails When Devices Are in a Unit Attention State
Configuration:
■
Red Hat Enterprise Linux (RHEL) version 6.0 with Native Cluster
■
Device Mapper Multipath (DMMP) failover driver
Problem or Restriction: This problem occurs when the DMMP failover driver is
used with the RHEL version 6.0 OS. If you try to set up a Red Hat cluster with the
DMMP failover driver, cluster startup might fail during the unfencing stage, where
each host registers itself with the SCSI devices. The devices are in a Unit Attention
Sun Storage 6580 and 6780 Array Hardware Release Notes
29
state, which causes the SCSI registration command issued by the host during startup
to fail. When the cluster manager (cman) service starts, the logs show that the nodes
failed to unfence themselves, which causes the cluster startup to fail.
Workaround: To avoid this problem, do not use the DMMP failover driver with
RHEL version 6.0. To recover from this problem, open a terminal window, and run:
sg_turs –n 5 <device>
where <device> is a SCSI device that is virtualized by the DMMP failover driver. Run
this command on every /dev/sd device that the DMMP failover driver manages.
It issues a Test Unit Ready command to clear the Unit Attention state and allow
node registration on the device to succeed.
Node Unfencing Fails when Automatically Generated Host Keys Are
Used during a Red Hat Cluster Suite Services Startup
Operating System: Red Hat Enterprise Linux 6 with Native Cluster
Problem or Restriction: This problem occurs the first time a cluster is set up when
the cluster.conf file does not have manually defined host keys. When the cluster.conf
file was first defined to set up a cluster with SCSI reservation fencing, the cluster
services were started on the nodes. With SCSI reservation fencing, the hosts try to
generate and register a key on the clustered devices as part of the cluster manager's
startup. The cluster manager service (cman) fails to start, and the key cannot be zero
error message appears in the host log.
Workaround: To avoid this problem, use only power fencing. Do not use SCSI
reservation fencing. To recover from this problem, change to manually defined host
keys, and restart the cluster services.
Red Hat Cluster Suite Services with GFS2 Mounts Cannot Transfer
Between Nodes when the Client Mounts with NFSv4
Operating System: Red Hat Enterprise Linux 6 Native Cluster
Problem or Restriction: This problem occurs during an attempt to transfer a cluster
service manually when a client is connected using NFSv4. The Global File System
(GFS) 2 mount points failed to unmount, which caused the Red Hat Cluster Suite
Services to go to the Failed state. The mount point, and all other mount points
exported from the same virtual IP address, becomes inaccessible.
Workaround: To avoid this problem, configure the cluster nodes to not allow mount
requests from NFS version 4 (NFSv4) clients. To recover from this problem, restart
the failed service on the node that previously owned it.
30
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Host Aborts I/O Operations
Operating System: Red Hat Enterprise Linux version 6.0
Problem or Restriction: This problem occurs during an online controller firmware
upgrade. The controller is not responding quickly enough to a host read or write to
satisfy the host. After 30 seconds, the host sends a command to abort the I/O. The
I/O aborts, and then starts again successfully.
Workaround: Quiesce the host I/O before performing the controller firmware
upgrade. To recover from this problem, either reset the server, or wait until the host
returns an I/O error.
Host Attempts to Abort I/O Indefinitely
Operating System: Red Hat Enterprise Linux version 6.0 with kernel 2.6.32
Red Hat Bugzilla Number: 620391
Note – This problem does not occur in Red Hat Enterprise Linux version 6.0 with
kernel 2.6.33.
Problem or Restriction: This problem occurs under situations of heavy stress when
storage arrays take longer than expected to return the status of a read or write. The
storage array must be sufficiently stressed that the controller response is more than
30 seconds, at which time a command is issued to abort if no response is received.
The abort will be retried indefinitely even when the abort is successful. The
application either times out or hangs indefinitely on the read or write that is being
aborted. The messages file reports the aborts, and resets might occur on the LUN,
the host, or the bus.
Factors effecting controller response include Remote Volume Mirroring, the
controller state, the number of attached hosts, and the total throughput.
Workaround: To recover from this problem, reset the power on the server.
Linux Host Hangs During Reboot After New Volumes Are Added
Problem or Restriction: When a Red Hat Enterprise Linux 5.1 host has more than
two new volumes mapped to it, it hangs during reboot.
Workaround: Try one of the following options:
■
After you add the new volumes, run the hot_add utility before rebooting the
host.
Sun Storage 6580 and 6780 Array Hardware Release Notes
31
■
Upgrade the QLogic driver with driver version qla2xxx-v8.01.07.15-2 (or later).
This option does not require that you run the hot_add utility.
■
Perform multiple reboots of the host.
Linux I/O Timeout Error Occurs After Enabling a Switch Port
Problem or Restriction: An I/O timeout error occurs after you enable a switch port.
This problem occurs when two or more Brocade switches are used, and both the
active and the alternative paths from the host are located on one switch, and both
the active path and the alternative path from the storage array are located on
another switch. For the host to detect the storage array on the other switch, the
switches are cascaded, and a shared zone is defined between the switches. This
problem occurs on fabrics managing high I/O traffic.
Workaround: Reconfigure the switch zoning to avoid the need for cascading. Limit
the zones within each switch, and do not create zones across the switches. Configure
the active paths from the host and the storage array on one switch, and all of the
alternative paths from the host and the storage array on the other switch.
Note – Configuring the active paths from all of the hosts on one switch will not
provide optimal performance. To resolve this performance issue, alternate the hosts
in terms of using active and alternative paths.
For switch 1, connect to storage array 1, and use the following arrangement: Host
A_Active port, Host B_Alternative port, Host C_Active port, Host D_Alternative
port.
For switch 2, connect to storage array 2, and use the following arrangement: Host
A_Alternative port, Host B_Active port, Host C_Alternative port, Host D_Active
port.
Linux Host Hangs During Reboot
Problem or Restriction: Red Hat Enterprise Linux 5.2 PowerPC (PPC) only. On rare
occasions, the host hangs during reboot.
Workaround: Reset the host.
Cannot Find an Online Path After a Controller Failover
Problem or Restriction: Linux Red Hat 5 and Linux SLES 10 SP1 only. After a
controller failover in an open SAN environment, a controller comes back online, but
the path is not rediscovered by the multi-path proxy (MPP). After a controller comes
online in a fabric connection (through a SAN switch), it is possible that a link will
32
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
not be established by the Emulex HBA driver. This behavior is seen only if the SAN
switch is “default” zoned (all ports see all other ports). This condition can result in
an I/O error if the other path is taken offline.
Workaround: Set all of the SAN switches to be “default” zoned.
I/O Errors Occur During a Linux System Reboot
Problem or Restriction: Linux SLES 10 SP2 only. I/O errors occur during a system
reboot, and the host resets.
Workaround: None.
MEL Events Occur During the Start-of-Day Sequence
Problem or Restriction: Red Hat Enterprise Linux 4.7 only. When the controller is
going through the start-of-day sequence, the drive channel does not achieve link
speed detection and logs a Major Event Log (MEL) event. This event recovers within
a few seconds, and a second MEL event occurs. The second MEL event indicates that
the link speed detection was achieved.
Workaround: None.
Documentation Issues
This section describes issues related to Sun Storage 6580 and 6780 array
documentation.
Total Cache Size Specification for Sun Storage 6780 Array
In Table 1-1 of the Hardware Installation Guide for Sun Storage 6580 and 6780 Arrays
(820-5773-11), the value for “Total cache size” is incorrectly reported as “16 Gbytes or
32 Gbytes.” As of the CAM 6.6 release, the revised value is “8, 16, 32, or 64 Gbytes.”
The revised value is documented in TABLE 1 of this release note document.
Sun Storage 6580 and 6780 Array Hardware Release Notes
33
Product Documentation
Application
Title
Site planning information
Site Planning Guide for Sun Storage 6580 and 6780 Arrays
Regulatory and safety
information
Sun Storage Regulatory and Safety Compliance Manual
Installation overview for rackmounted arrays
Getting Started Guide for Sun Storage 6580 and 6780 Rack
Mounted Arrays
Getting Started Guide for Sun Storage 6580 and 6780 Rack
Ready Arrays
Rack installation instructions
Sun Rack II User’s Guide
Rail kit installation instructions
Sun Modular Storage Rail Kit Installation Guide
PDU installation instructions
Power Distribution Unit Installation Guide for Sun Storage
6580 and 6780 Arrays and Sun StorageTek 2500 and 6000
Array Series
Array installation instructions
Hardware Installation Guide for Sun Storage 6580 and 6780
Arrays
Upgrade a Sun StorageTek 6540
array to a Sun Storage 6580 or
6780 array
Sun Storage 6000 Series Hardware Upgrade Guide
Release-specific information for
the Sun StorageTek Common
Array Manager
Sun Storage Common Array Manager Release Notes
Software installation and initial
configuration instructions
Sun Storage Common Array Manager Software Installation
and Setup Guide
Reference information for the
Common Array Manager CLI
Sun Storage Common Array Manager CLI Guide
Multipath failover driver
installation and configuration
Sun StorageTek MPIO Device Specific Module Installation
Guide For Microsoft Windows OS
Sun StorageTek RDAC Multipath Failover Driver
Installation Guide For Linux OS
34
Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012
Documentation, Support, and Training
These web sites provide additional resources:
■
Documentation
http://www.oracle.com/technetwork/documentation/oracleunified-ss-193371.html
■
Software licensing http://licensecodes.oracle.com/
■
Support https://support.oracle.com
■
Training https://education.oracle.com
Sun Storage 6580 and 6780 Array Hardware Release Notes
35
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Sun Storage 6580 and 6780 Array Hardware Release Notes • March 2012