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
Error with DeleteVirtualDisk command when virtual disk LUN number is out of range
When deleting a virtual disk with the DeleteVirtualDisk command, and the LUN number is out
of range, you will receive a SCSI I/O error message. This is expected behavior.
The CreateAsyncMirrorGroupEx command cannot be run in Linux
At this time, the CreateAsyncMirrorGroupEx command cannot be run in Linux. HP is working to
resolve this issue.
VSS hardware provider issues
The following are known restrictions and limitations for the Volume Shadow Copy Service (VSS)
hardware provider:
• The hardware provider cannot create a snapshot on a synchronous mirror virtual disk.
• The hardware provider always creates user PiTs instead of standard PiTs on asynchronous mirror
virtual disks.
• When deleting a PiT that is in a "precommitted" state, a This will delete the snapshot
set warning appears. If the deletion is approved, the VSS PiT is deleted or rolled back to a PiT
"below" the VSS PiT.
• If the shadow copy set includes one virtual disk that belongs to a VDG, an error is displayed. You
must add all the VDG virtual disks to the shadow copy set.
• A VSS snapshot (consistent with the application) cannot be created from the VSM GUI.
• Deletion of PiTs can be initiated by the capacity manager algorithm of VSM, which is treated as
if a user deleted the PiTs.
• VSS snapshots and VDG snapshots must not be restored.
• Once a VSS snapshot is deleted using the VSM GUI, a hardware rescan is required.
• If a VSM or DPM failure occurs, an error is displayed, and there is no ability to retry failing
operations with the hardware provider.
• A snapshot set is not supported over multiple domains.
• The VSS provider only supports differential snapshots and not "plex" (full copy) snapshots.
• Automatic export of VMware-created snapshots running on a Windows Virtual Machine is not
supported, and should be done manually.
Documentation issues
When the SVSP documentation mentions the VSM server, this can refer to different generations of the
HP ProLiant DL360 hardware. The original version (VSM v1) was the DL360 G5, the next version
(VSM v2) was the DL360 G6, and the latest server is the DL360 G7. Information on these three servers
can be obtained on the HP ProLiant website at:
http://www.hp.com/support/manuals
Under servers, select ProLiant ml/dl and tc series servers, and then select the specific server.
Information for the VSM v2 server can also be obtained in the HP StorageWorks Virtualization Services
Manager v2 server user guide at:
http://www.hp.com/support/manuals
Under storage, select Storage Software and then select HP StorageWorks SAN Virtualization Services
Platform under Storage Virtualization Software.
SVSP documentation in future releases will refer to the model of server and not by a VSM version
number.
Issues and workarounds 23