Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Metropolitan Cluster Using MetroCluster/CA
XP/CA Device Group Monitor
Chapter 3120
Configure XP/CA Device Group Monitor as a Service
of the Package
Add the monitor as a service in the package's configuration file and
control script file as follows:
• In the package's configuration file, add the following lines:
SERVICE_NAME pkgXdevgrpmon.srv
SERVICE_FAIL_FAST_ENABLED NO
SERVICE_HALT_TIMEOUT 5
NOTE The SERVICE_HALT_TIMEOUT value of 5 is a recommended value. If
the value is set to lower than 5 seconds as the service halt timeout, then
it may not allow enough time for the monitor to properly clean itself up.
• In the package's control script file, add the following lines on the
“SERVICE NAMES AND COMMANDS” section:
SERVICE_NAME[0]=”pkgXdevgrpmon.srv”
SERVICE_CMD[0]=”/usr/sbin/DRMonitorXPCADevGrp <full path name
of the package environment file>”
SERVICE_RESTART[0]=”-r 10”
WARNING If the CA links are still down while the monitor is trying to do
the resynchronization and another failure occurs that causes a
remote failover to the secondary site, the SVOL’s BC volumes
will remain split from its mirror group.
This will only occur if the monitor is configured to perform
automatic resynchronization using AUTO_RESYNC=1.