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Legato NetWorker, Release 7.0
Disaster Recovery Guide
12
Recovering an Entire Cluster
166
How to Recover a Single Node
To recover a single node:
1. Install the NetWorker software.
2. Start the NetWorker client.
3. From an unaffected node in the cluster, use the virtual NetWorker server
to restore the node's data and software from a recent backup.
4. From an unaffected node in the cluster, use the SMIT utility to synchronize
the cluster topology and resources.
Recovering an Entire Cluster
This section describes how to perform a complete cluster recovery including
reinstallation of the operating system on all nodes in the cluster.
Note: It is unlikely that all the nodes in a cluster would fail simultaneously; but
if this does occur, follow this procedure.
How to Perform a Cluster-Wide Recovery
Use the following tasks to perform a cluster-wide recovery:
• “Task 1: Install the Software” on page 166
• “Task 2: Restore the Cluster Database” on page 166
• “Task 3: Start the Cluster” on page 167
• “Task 4: Restore the Data” on page 167
Task 1: Install the Software
To install the software on a primary node:
1. Configure the hardware and install the operating system.
2. Reinstall the HACMP for AIX software.
3. Install the NetWorker software.
Task 2: Restore the Cluster Database
To restore the cluster database:
1. From all nodes in the cluster, make sure that all cluster software is halted.