HP Serveur lame HP ProLiant BL465c Gen8 - Manual (Page 30)

If you execute Application Agent commands in a cluster configuration, you must specify the location
of the dictionary map files to be used for each virtual server. For details on cluster configurations, see
“
Cluster support ” on page 30. For details on how to create the dictionary map files in a cluster
configuration, see “ Creating dictionary map files ” on page 130.
Pair management using copy groups
In Application Agent, a primary and secondary volume pair whose synchronization is started and
stopped by using volume replication or RAID Manager functions is referred to as a copy group (or
pair volume). The following figure shows a logical volume that consists of multiple copy groups.
Figure 2 Logical volume consisting of multiple copy groups
If the logical volume that contains the data you want to back up consists of more than one physical
volume, create a copy group (pair volume) for each of the primary and secondary physical volumes.
Application Agent can automatically manage multiple copy groups together in order to start and stop
the synchronization of the logical volume that you want to back up.
Copy group names consist of a RAID Manager group name (dev_group) and a RAID Manager pair
logical volume name (dev_name). For example, if a dev_group is
VG01 and a dev_name is dev01 ,
the copy group name will become VG01,dev01 .
Cluster support
Application Agent supports failover clustering, which is based on cluster software for a variety of
OSs. Applying the cluster configuration to file servers and database servers allows you to perform
backups without stopping the system, even if a failure occurs.
Application Agent comes with a function that can automatically control clusters, so that you can take
full advantage of the high-availability offered with cluster-based systems. In order to perform a cold
backup or restoration of a database, it must be taken offline. If a database is taken offline while the
cluster resources that are monitoring the DBMS are still online, a failover will occur. This usually results
in the need to control cluster resources manually. However, by utilizing the Application Agent function,
cluster resources that monitor the DBMS are automatically taken offline, and then put back online
whenever Application Agent is used to perform a cold backup or restore operation for data.
Overview of Application Agent 30