HP BA322 90087 User Manual
Page 100
6.
Use the following command to shut down any nodes that boot from the system disk you
are upgrading (shut down satellite nodes first):
$ @SYS$SYSTEM:SHUTDOWN
a.
When the procedure asks whether an automatic system reboot should be performed,
enter N (NO).
b.
After all satellite nodes have shut down, select the REMOVE_NODE option.
If a proper quorum is not maintained at any time during the upgrade procedure, the shutdown
procedure hangs the cluster. If the cluster hangs during a shutdown, you can use the Interrupt
Priority C (IPC) facility to adjust quorum from the system console of a system that is still a cluster
member.
From an OpenVMS Alpha cluster member, press Ctrl/P. The IPC facility displays help information
about IPC commands. Enter the commands at the console:
$ Ctrl/P
>>> D SIRR C
>>> C
Interrupt Priority C
Commands:
C device Cancel Mount Verification
Q Adjust Quorum
CTRL-Z Exit IPC
CTRL-P Prompt for Crash
IPC> Q
IPC> Ctrl/Z
From an OpenVMS Integrity servers cluster member, pressing Ctrl/P puts the system directly
into the IPC facility, which displays help information about IPC commands. To adjust quorum,
enter the commands shown in the following example. Note that if systems are booted with
XDELTA, pressing Ctrl/P brings the OpenVMS Integrity servers system into XDELTA. The IPC
facility is not available in this case.
$ Ctrl/P
Interrupt Priority C
Commands:
C device Cancel Mount Verification
Q Adjust Quorum
CTRL-Z Exit IPC
CTRL-P Prompt for Crash
IPC> Q
IPC> Ctrl/Z
You can also adjust quorum using Availability Manager or DECamds. The method is equivalent
to that used by IPC except you do not have to use the console (this assumes the Data Analyzer
is running on a system outside the OpenVMS Cluster, which is recommended). For more
information, see the “Adjust Quorum” section in the Availability Manager User’s Guide or the
DECamds User’s Guide. The Availability Manager User’s Guide is available at:
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Preparing to Upgrade in an OpenVMS Cluster Environment