HP StorageWorks P9000 Replication Manager Software 7.1 Configuration Guide (TB584-96022, May 2011)

Creating and restoring database replicas
Application Agent creates and restores replicas of storage groups (databases) using the volume
replication function in the storage system to perform high-speed disk-copying operations. A storage
group is a group containing one or more MS Exchange 2003/2007 information stores. Storage
groups can be used to manage multiple information stores at the same time.
MS Exchange databases contain the following two types of information stores:
• Mailbox stores for saving received email messages, attachments, folders, documents, etc.
• Public folder stores for saving information shared among users (email messages, documents, MS
Outlook custom forms, etc.)
Cluster support
Application Agent supports failover clustering using MSCS (Microsoft Cluster Service) and MSFC
(Microsoft Failover Cluster). To restore backup data, the database must be taken offline. If a database
is taken offline while the cluster resources that are monitoring the database are still online, a failover
will occur. This usually results in the need to control cluster resources manually. With Application
Agent, cluster resources that monitor the database are automatically taken down and brought back
online whenever Application Agent is used to perform a backup or restore operation for data.
Application Agent supports both mutual standby cluster configurations (Active-Active) and operational
standby cluster configurations (Active-Passive).
NOTE:
You can put together a cluster configuration using only database servers. You cannot allocate one
cluster server to a database server and the other cluster server to a backup server.
In a cluster environment using MSCS/MSFC, you can choose whether to perform a restore operation
while the cluster resources that monitor the database are online or offline. For a restore operation in
which the cluster resources are offline, you need to take all the databases that are using the database
services offline. However, for a restore operation in which the cluster resources are currently online,
you only need to take the databases that are involved in the restore operation offline.
NOTE:
Depending on the storage system type and features of the operating system, you might not be able
to perform a restore operation while the cluster is online.
Data management across storage systems
Application Agent allows you to back up and restore secondary volumes to and from a local site (the
storage system where the primary volume resides) and a remote site (a storage system different from
that of the primary volume).
Replication Manager can perform the following operations on a remote site via Application Agent:
• Back up and restore data
• Re-synchronize a copy pair
• Display resource information
• Lock a copy pair
• Mount or unmount a secondary volume
Setting up Application Agent50