HP-UX Virtual Partitions Release Notes (A.05.04)

Description While a virtual partition is shutting down, panicking, or booting, typing
Control-s to suspend its console output may cause the virtual partition to stop making
forward progress. The virtual partition may appear to hang.
Symptoms If a Control-s is typed at the system keyboard while the virtual partition
currently writing to the console is shutting down, panicking, or booting, that virtual partition
may appear to hang.
Workaround Type Control-q to resume console output.
• Configuring an Ultra2 or Ultra160 Card with vparutil
Related Defect ID and Patch Number JAGaf00411
Applicable On
— vPars A.05.xx on PA-RISC
— vPars A.04.xx on PA-RISC
— vPars A.03.xx on PA-RISC
Description On the nPartitionable servers, using the vparutil command to configure an
Ultra2 or Ultra160 SCSI card can cause the virtual partition that owns the SCSI card to fail
to boot.
Symptoms On the nPartitionable servers, the virtual partition connected to an Ultra2 or
Ultra160 SCSI boot device fails to boot after the SCSI card was configured using the vparutil
command.
Workaround
— For vPars A.03.xx, bring down all the virtual partitions and configure the card at BCH
using the SCSI command to set the desired parameters. Then, boot the vPars Monitor.
— For vPars A.04.xx and A.05.xx, use the mptconfig command. For information on
mptconfig, see the Ultra320 SCSI Support Guide or the support guide for your card.
• System Resets During a Crash Dump Due to Watchdog Timer
Related Defect ID and Patch Number JAGae79790
Applicable On
— vPars A.05.xx on PA-RISC
— vPars A.04.xx on PA-RISC
— vPars A.03.xx on PA-RISC
Description During a crash dump of a virtual partition, hardware heartbeats are delayed
long enough such that the watchdog timer is triggered. If the watchdog timer has been
configured to reset, then the entire system is reset (TOC).
Symptoms A system (or nPartition) is reset when a virtual partition is performing a crash
dump.
Workaround From the GSP, use the AR command to set the watchdog timer to not
automatically restart the system (or nPartition). Examples are below.
— On non-nPartitionable servers, use the following procedure:
GSP> ar
Current System restart settings:
Automatic System restart: Enabled
ASR Alert Level Triggers: 13
Do you want to modify this configuration? (Y/[N]) y
Current Automatic System restart: Enabled
Do you want to modify it? (Y/[N]) y
New Automatic System restart (Enabled / Disabled): disabled
New Automatic System restart: Disabled
Confirm? (Y/[N]): y
-> Automatic System restart will be updated.
Known Problems and Workarounds 13