HP SAN Virtualization Services Platform 3.0.5 Release Notes (5697-1031, June 2011)
Table Of Contents
- HP StorageWorks SAN Virtualization Services Platform 3.0.5 Release Notes
- Description
- Versions
- Product models
- Fixes
- Prerequisites
- Installation instructions
- Host operating systems and multipath drivers
- Devices supported
- SVSP-supported storage arrays
- Capabilities and limitations
- SVSP system capabilities and limitations
- SVSP front-end capabilities and limitations
- SVSP back-end capabilities and limitations
- Configuration best practices
- Operational best practices
- Issues and workarounds
- Upgrade issues
- Upgrading with large back-end disks
- Upgrade order
- Replacing a DPM in a DPM group when upgrading from SVSP 2.x to SVSP 3.0.x
- Operating system issues
- Decreased DPM performance in VMware environment
- The Windows Server 2008 UAC prevents applications requiring admin privileges from working
- Windows offers to format newly discovered disks resulting in data loss
- Miscellaneous Windows issues
- OpenVMS support without async mirrors
- SMI-S provider can delete some setup virtual disks
- Servers running HP-UX 11.23 disconnect from SAN
- Setting the cluster bit for Serviceguard in Linux or HP-UX
- Capacity limits with thin provisioned volumes
- VSM issues
- Thin virtual disks must have read/write permission and cluster flag
- VSM GUI indicates passive VSM not ready for failover
- Disabled Delete menu when virtual disk is member of synchronous mirror group
- SVSP web server hang makes GUIs inaccessible
- WSRM configuration step needed on VSM v2 server
- Imported LUNs must be aligned to a 1 MB capacity
- Verify free space before concatenating thin virtual disk on thick virtual disk
- Manual failover of loaded system with VSM GUI causes a non-expected system state
- VSM GUI unable to remove all host presentations in one operation
- Threshold limit message only sent once
- Restoring a VSM setup from a backup cannot have PiTs
- Error 1618 during VSM installation
- Limit of 63 PiTs on thin virtual disk
- Front-end hosts not able to work with objects
- Export/import query does not work
- Cannot have same first 29 characters in sync mirror task names
- Cannot expand VDG without same DPM as the members
- VSM does not enforce 512 data movers
- Issue when exceeding 180 async mirror tasks
- MSA capacity can be reported in base 2 or base 10
- Error with Continuous Access license capacity when replicated differently
- HP XP array volumes show as failed after creation of storage pool
- Long boot time with large configurations
- Cannot write to file error when using an MSA22xx array
- ForceActive with VSM server in unknown state
- Deletion of last DPM in a DPM group
- Changing virtual disk or group DPM selection from two to one DPM is not allowed
- Windows fault when array unresponsive
- VSM must be enabled for "Reboot on fatal error"
- VSM server connection to the SAN
- New front-end LUNs require rescan
- New back-end LUNs require rescan
- LUNs must have a preferred path/controller
- Import some HP and IBM back-end LUs only to designated pools
- Asynchronous mirrors and jobs do not fail when the source site is unavailable
- Accessing VSM may require Java Web Services cleanup
- IPv6 support limitations
- PiT deletions after reaching threshold Guard level
- Read-only permissions are not supported in the VSM GUI
- Potential for I/O loss with synchronous mirrors due to active DPM failure
- DPM issues
- DPM ports stay present during a DPM reboot
- Failback operation does not work after DPM replacement
- Physically disconnecting a DPM port results in a high rate of invalid transmitted word port errors
- Changing back-end virtual disks to be write protected is not supported
- Enabling Ethernet port without a cable results in diagnostic message on console
- A DPM upgrade reverts to SNMP host name setup
- Change active switch command does not work with Sun Solaris hosts
- Rescan is required after deleting or unpresenting virtual disks
- Period of high back-end load after a DPM reboot when synchronous mirror virtual disks are used
- I/O errors/timeouts when performing failover on large numbers of synchronous mirror virtual disks
- DPM reboots when a host has two different host types or personalities on two different SVSP domains
- DPM ports connected to a 4 Gb Fibre Channel switch may sometimes auto-negotiate to 2 Gb speed
- DPM NTP configuration does not work with Windows 2000 domain controllers
- Initial GUI port statistics values are zero for an extended time
- Running show debug dump command does not work as expected
- Order of magnitude of Tx/Rx Kbytes not correct with show ports stats command
- The ‘%’ option of the show log command moves to the end of the file
- Additional DPM limitations
- HP Command View SVSP issues
- HP Command View SVSP has reached end-of-life
- VSM CLI issues
- The SelectVSMDomain command fails with certain operating systems
- Some VSM CLI commands cause the CLI application to stop
- No error message with PurgeVirtualDisks command
- Exception error using Solaris with no VSM CLI virtual disk
- Host not checked when creating snapclone group
- Error received with GetDpmInfo command when using –SyncGroup argument
- Incorrect error message displayed with CreateSnapshotWithLun command
- Incorrect error message when ExpandVirtualDisk command is missing argument
- Incorrect error message when creating 65th PiT on a virtual disk
- The ListSnapshots command fails to return data with too many PiTs
- The DeleteRemoteAsyncMirrorGroup command does not work in HP-UX
- The BreakAllRemoteAsyncMirrorTasks command does not work in HP-UX
- The ? wildcard character in HP-UX is not reliable
- The ResumeLocalAsyncMirrorTask command does not work in HP-UX the first time
- The ResumeLocalAsyncMirrorTask command gives error in HP-UX if already resumed
- Incorrect error message when ManageSnapcloneGroup command is missing the Opcode argument in HP-UX
- The CreateSnapcloneGroupEx command fails with HP-UX if the group is still building
- The CreateSnapshotWithLun command fails to get last PiT instance for Pit26 with HP-UX
- Do not use DeleteVirtualDisk command with LastInstance argument in HP-UX
- Error with DeleteVirtualDisk command when virtual disk LUN number is out of range
- The CreateAsyncMirrorGroupEx command cannot be run in Linux
- VSS hardware provider issues
- Documentation issues
- Obtaining product documentation
NOTE: All the above communications are confined to the SVSP domains. External communications
(for example, the GUI and other SOAP clients connected to the web server) are done according
to the site configuration (either through IPv4 or IPv6 addresses).
• If an IPv6 address is added or deleted while VSM is running, the SVSP Monitor cannot detect this
change without restarting the VSM application.
• Downloading the VSM GUI client for IPv6 (for example, when IPv6 is configured as the desired
communication protocol between the web server and the client) must be done using the Microsoft
Internet Explorer 7 or Mozilla Firefox (version 3.0.3 and higher) browser. There is a known
limitation with Microsoft Internet Explorer 6, and it cannot be used.
• To log in to the VSM GUI using IPv6 format, you need to enclose the address within right and left
brackets. For example: [fd00::21d:9ff:fe6b:1da9].
PiT deletions after reaching threshold Guard level
There are three configurable capacity threshold limits: Warning, Guard, and Emergency. When the
Guard level is reached, more than one of the older PiTs may be deleted. See the HP StorageWorks
SAN Virtualization Services Platform Manager User Guide for details.
Read-only permissions are not supported in the VSM GUI
Do not assign read-only permissions to a virtual disk using the VSM GUI, even if this is allowed in the
GUI. Some operating systems (for example, Windows) require write permission for their own file system
activities. Assigning read-only permissions will generate I/O retries and increase the load on the DPM.
Potential for I/O loss with synchronous mirrors due to active DPM failure
I/O loss could occur with synchronous mirroring using “Sync Always” groups (not with “Continue on
Fail” groups) when an active DPM is completely disconnected from the domain. Ensure that members
of the synchronous mirror group are failed over to the other DPM before disconnecting an active DPM
from the SAN.
DPM issues
DPM ports stay present during a DPM reboot
The DPM shutdown command works at the software level, but does not actually shut down the hardware.
The DPM ports stay logged in to the Fibre Channel but do not respond to inquiries. The consequences
of using this command are:
• Front-end hosts may hang due to unresponsive ports in the SAN.
• The VSM will show the DPM ports as working, but may show them in a failed state.
• The VSMs may also be briefly affected by the DPM for awhile, and become unresponsive.
After executing the DPM software command, the DPM will have to be disconnected from the power
supply and then reconnected.
Failback operation does not work after DPM replacement
The VSM failback operation does not fail back all the I/O to the preferred DPM after a DPM
replacement. The workaround is to reboot the replacement DPM, and then perform the failback
operation.
Physically disconnecting a DPM port results in a high rate of invalid transmitted word port errors
When a DPM port is physically disconnected from a Fibre Channel switch, the switch port may register
a large number of invalid transmitted word port errors. These port errors can be safely ignored.
18 Issues and workarounds