You can run the HACMP cluster verification utility, clverify, on one node
to check that all cluster nodes agree on the cluster configuration and the
assignment on the HACMP resources. If you run the clverify utility
after defining the IBM Tivoli Storage Manager server as an HACMP application,
you will see warning messages similar to the following:
ERROR: File /usr/adsmshr/bin/startserver used to start application
tsm does not exist or is not executable on node 2.
ERROR: File /usr/adsmshr/bin/stopserver used to stop application tsm
does not exist or is not executable on node 2.
These messages appear because the shell scripts to start and stop the
IBM Tivoli Storage Manager servers are in a shared file system that can only
be mounted on one node at a time. Therefore, the shell scripts can be
available on only one node at a time. You can ignore the clverify
warning messages. If a shared file system cannot be mounted, the IBM
Tivoli Storage Manager server cannot be started. The fact that HACMP
cannot access the shell scripts would then be a secondary problem.
When you use the startserver shell script to start the IBM Tivoli Storage
Manager server automatically, error messages that would normally appear on the
system administrator's console are lost. You can review messages
using the QUERY ACTLOG command. If HACMP fails to start the IBM Tivoli
Storage Manager server, try to start it manually on a terminal without the
quiet option.
If you issue the command 'tctl -f/dev/rmt2 rewind' you might get
the message '/dev/rmt2: A device is already mounted or cannot be
unmounted.' This message means that the I/O device is locked with
a SCSI RESERVE by a system other than the one on which the tctl command was
executed.
If you get the message "ANS4329S Server out of data storage space" on an
IBM Tivoli Storage Manager client, the message may mean that the IBM Tivoli
Storage Manager server has a license problem. Use the QUERY ACTLOG
command on the server to identify the problem.
See the stopserver shell script for the dsmadmc command needed to start an
administrative client from which to issue the QUERY ACTLOG command.
When multiple systems share an IBM Tivoli Storage Manager tape device and
the device is in use by an IBM Tivoli Storage Manager server on one system,
other dormant systems attached to the bus should not be powered on. If
another system is powered on, the IBM Tivoli Storage Manager server will see
an I/O error on the tape device. The server will eventually recover
from the I/O error. However, backups in progress to the device will
fail, and the media being written to will be marked read-only.
Quiesce IBM Tivoli Storage Manager server activity before powering on other
systems in the HACMP cluster.
