Computer Associates ARB6002700WF0. ..... Administration Guide - Page 274

Backing Up and Restoring MSCS Nodes

Page 274 highlights

Backing Up and Restoring MSCS Nodes Backing Up and Restoring MSCS Nodes With MSCS, all cluster configuration information resides in a Cluster Database. The Cluster Database resides in the Windows registry on each cluster node and contains information about all physical and logical elements in a cluster, including cluster objects, their properties, and cluster configuration data. The Cluster Database contains the cluster state data that is replicated among nodes to ensure that all nodes in the cluster have a consistent configuration. The Cluster Database registry is located in %WINDIR%\CLUSTER\CLUSDB. The Cluster Database is part of the Windows System State. When the System State is selected for backup, the Cluster Database is automatically included in this backup. Therefore, the Cluster Database is included in the system state backup only if the node is a part of a cluster and the cluster service is running on that node. If the cluster service is not running, the Cluster Database is not backed up. During restore operations, the Cluster Database is restored as a part of the System State. The Cluster Database cannot be selectively restored as a single entity; it must be restored as a System State session restore. To back up and restore the Cluster Database, it is sufficient to back up and restore the Windows System State with the cluster service running. When a cluster node is in Directory Service Restore mode, the Logon properties of the Cluster Service User Account must be set as Administrator to ensure that BrightStor ARCserve Backup can be accessed while in Windows Safe Mode. Note: Do not select the BrightStor ARCserve Backup Database as a part of a regular restore operation when BrightStor ARCserve Backup is installed on a shared drive in a cluster failover environment. Restoring the database in this way can corrupt the job queue. A-2 Administrator Guide

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Backing Up and Restoring MSCS Nodes
A–2
Administrator Guide
Backing Up and Restoring MSCS Nodes
With MSCS, all cluster configuration information resides in a Cluster Database.
The Cluster Database resides in the Windows registry on each cluster node and
contains information about all physical and logical elements in a cluster, including
cluster objects, their properties, and cluster configuration data. The Cluster
Database contains the cluster state data that is replicated among nodes to ensure
that all nodes in the cluster have a consistent configuration. The Cluster Database
registry is located in %WINDIR%\CLUSTER\CLUSDB.
The Cluster Database is part of the Windows System State. When the System State
is selected for backup, the Cluster Database is automatically included in this
backup. Therefore, the Cluster Database is included in the system state backup
only if the node is a part of a cluster and the cluster service is running on that node.
If the cluster service is not running, the Cluster Database is not backed up.
During restore operations, the Cluster Database is restored as a part of the System
State. The Cluster Database cannot be selectively restored as a single entity; it must
be restored as a System State session restore.
To back up and restore the Cluster Database, it is sufficient to back up and restore
the Windows System State with the cluster service running.
When a cluster node is in Directory Service Restore mode, the Logon properties of
the Cluster Service User Account must be set as Administrator to ensure that
BrightStor ARCserve Backup can be accessed while in Windows Safe Mode.
Note:
Do not select the BrightStor ARCserve Backup Database as a part of a
regular restore operation when BrightStor ARCserve Backup is installed on a
shared drive in a cluster failover environment. Restoring the database in this way
can corrupt the job queue.