HP 3PAR InForm OS 2.3.1 Extended MU5 Release Notes (QL226-96621, May 2013)

Workaround
To avoid this device pop-up message you can install NULL driver for 3PAR SCSI Enclosure Service
device located at the HP Business Support Center (BSC) http://www.hp.com/bizsupport/..
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 is 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 Crash During Rolling Upgrade if Remote CopyGroups 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)
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 its default values.
Workaround
Reset the parameter to the default value by reissuing tunelinks with bandwidth=128000 (or higher)
and latency=100.
RCFC Port Shutdown Failure (Bug 44520)
A problem exists during the shutdown of RCFC ports when line errors are present on the Fibre Channel
port. It is possible that the port may not shutdown correctly due to the connection being restarted from
the network multiple times due to delayed or duplicated packets being received.
Workaround
None.
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 also during
the resync periods. The snapshots end up using administrator space depending on the IOPS and
throughput load on the Remote Copy volumes.
Workaround
Use setcpg -sdgs <increment_value> <volume_name> to increase the default grow increment.
The recommended value is 96 Gb.
controlport Configuration Gives Warning after Being Taken Offline (Bug 44989)
Using the -f option with controlport config, the system responded with a confirmation request,
or refused to force the mode change.
12 HP 3PAR InForm Operating System Release Notes