HP 3PAR Cluster Extension Software Administrator Guide (5697-2263, December 2012)

If ApplicationDir is not set, HP 3PAR Cluster Extension uses the local
%HPCLX_3PAR_PATH% values as defined in the registry.
Default
values
%HPCLX_3PAR_PATH%
Files application_name.forceflag
CLX_application_name.online
If specified in a user configuration file, resource_name is the value of the
APPLICATION tag; otherwise, resource_name is the value of the HP 3PAR Cluster
Extension resource name.
ApplicationStartup (Optional)
Format String
Description Specifies where a cluster group should be brought online.
The ApplicationStartup object can be customized to determine whether an
application service starts locally or is transferred back to the remote data center (if
possible) to start immediately without waiting for disk pair resynchronization. This
object is used only if an application service has already been transferred to the
secondary site and no recovery procedure has been applied to the Remote Copy
volume group (the Remote Copy volume group has not been recovered and is not
in a normal state). This process is considered a failback attempt without prior Remote
Copy volume group recovery.
HP 3PAR Cluster Extension can detect the most current copy of your data based on
the Remote Copy volume group information. If HP 3PAR Cluster Extension detects
that the remote HP 3PAR storage system has the most current data, it orders a
resynchronization of the local disk from the remote disk, or it stops the startup process
to enable the cluster software to fail back to the remote HP 3PAR storage system.
If a resynchronization is ordered, HP 3PAR Cluster Extension monitors the progress
of the copy process. If the application service was running on a secondary HP 3PAR
storage system without a replication link, a large number of records may need to
be copied. If the copy process takes longer than the configured application startup
timeout value, the application startup will fail.
Windows cluster
If the ApplicationStartup resource property is set to FASTFAILBACK, and the
FailoverThreshold value is set to a number higher than the current number of
clustered systems for the service or application, the service or application will restart
on configured nodes until one of the following conditions is met:
• The resource is brought online in the remote data center.
• The resource failed because the FailoverThreshold value has been reached.
• The resource failed because the FailoverPeriod timeout value has been reached.
CAUTION: Disable subsequent automated failover procedures for recovery failback
operations. If you want to use HP 3PAR Cluster Extension capabilities to recover a
suspended Remote Copy volume group state during a failover, ensure that subsequent
failover operations are disabled in case the recovery attempt fails. To disable
subsequent failover attempts, set the FailoverThreshold to zero (0) until the
recovery operation has finished successfully.
Valid values FASTFAILBACK (default)
50 User configuration file and HP 3PAR Cluster Extension objects