HP 3PAR InForm OS 3.1.1 MU1 Release Notes

Windows 2003 Pop-Up
Client machines running the Windows 2003 operating systems receive an unknown device pop-up
from Windows Plug and Play security checking when connecting to a 2.3.1 InServ Storage Server
system.
• Workaround: To avoid this device pop-up message you can install the NULL driver for 3PAR
SCSI Enclosure Service device located on DCS.
Cage Loop Down Alert is not Auto-Recovered (Bug 40274)
There are certain conditions during which a drive cage loop missing alert may not be auto-resolved
even though the drive cage loop comes back.
• Workaround: Once it has been verified that the alert is indeed invalid, check showcage -d
and showpd to verify the loop is present. The alert can be removed by removealert or
setalert.
System Manager Could Fail During Rolling Upgrade if Remote Copy Groups Running
(Bug 40867)
When creating snapshots during the shutdown process there is a known race condition that may
result in a system manager crash. Therefore, the user is no longer permitted to manually take
snapshots during this process. However, this is not the case with snapshots that are taken when a
synchronous remote copy group is stopped.
During a rolling upgrade synchronous groups are normally not stopped. However, if there is a
target failure during the process any associated groups will automatically be stopped, and if the
group is synchronous a snapshot for each volume in the group will be taken. This leaves the system
open to hitting the race condition described above.
• Workaround: Stop all remote copy groups before starting a rolling upgrade.
No Explicit Way to Reset the Default Value for Tunelinks (Bug 43579)
The setrcopytargettunelinks command can be used to adjust the performance value for
the target's links using the <bandwidth> and <latency> specifiers. After using this command,
there is no explicit way for the user to reset the tuning parameters back to the default value.
• Workaround: Reset the parameter to the default value by reissuing tunelinks with
bandwidth=128000 (or higher) and latency=100.
Remote Copy Volumes go Stale Due to Lack of Adm Space (Bug 44963)
The default grow value of 64 GB might be insufficient for volumes which are in Remote Copy
groups. The reason is Remote Copy relies on taking snapshots during the initial sync phase and
Known Issues with the InForm OS 21