HP SAN Virtualization Services Platform 3.0.5 Release Notes (5697-1031, June 2011)

of errors reported for that link in the port statistics. If there are errors, replace the SFPs and cable. The
port can also be manually set to 4 Gb speed on the DPM.
DPM NTP configuration does not work with Windows 2000 domain controllers
The DPM only supports NTP servers that support network time protocol query (ntpq) and the full
RFC-1305 specification. In particular, Windows 2000 only implements 'Simple NTP' and is not
supported by the DPM as an NTP server.
Initial GUI port statistics values are zero for an extended time
It can take up to 30 seconds for the port statistics values in the DPM GUI to be retrieved. This may
give the indication that nothing is happening. Wait for the collection of the statistics.
Running show debug dump command does not work as expected
The default show debug dump command attempts to output several binary files to the console. This
results in unreadable output. The default output set is appropriate for saving to a file (for example,
create debug dump), but not for terminal output. Using show should use a different set of parameters
to the underlying script to generate only text output. HP is working to resolve this issue.
Order of magnitude of Tx/Rx Kbytes not correct with show ports stats command
After a long runtime, the Tx Kbytes and Rx Kbytes statistics are not output correctly for the show ports
stats command. HP is working to resolve this issue.
The ‘%’ option of the show log command moves to the end of the file
The in-editor help display states you should press the % option, then enter a percentage. Instead of
moving to a percentage of the file, the % option of the show log command will always jump to the
end of the file. Instead, you should enter a percentage value and then press %.
Additional DPM limitations
The following are additional limitations that should be observed for the DPMs:
• TPRLO does not properly propagate PRLO to shared initiators.
• Avoid deleting or removing the presentation from the last virtual disk for a host. Avoid deleting
an absent host that has virtual disks.
• It can take up to 30 seconds to open the first device on AIX. Access to subsequent devices is as
expected.
• It is possible that an AIX server may hang if one of its HBA ports is disconnected.
• If the back-end storage is overloaded (returning a high rate of busy and queue full responses or
becoming unresponsive), the front-end host could experience I/O errors being returned from the
DPM. This is particularly true when running a synchronous mirror workload and performing
perturbations (DPM reboots, cable disconnects, and so on).
• The personality or OS type of a user-defined host (UDH) cannot be changed in the VSM while
virtual disks are exposed. All virtual disk permissions must be removed before changing the
personality or OS type of a UDH. Not doing so could lead to unexpected results, a crash, or a
reboot of the DPMs.
• Persistent reservations and SCSI-2 reserve-release do not work correctly in some cases:
Persistent reserve completes successfully on passive SCSI-2 on a reserved virtual disk.◦
◦ Persistent reserve completes successfully on the active DPM. The virtual disk is SCSI-2 reserved.
• When upgrading a Windows DSM-B host to the Full-Feature (FF) DSM, permissions to all virtual
disks presented to that host must be removed prior to uninstalling DSM-B and reapplied after
FF-DSM has been installed and the personality selected for the UDH has been changed to 'HP-EVA
20 Issues and workarounds