Recovering an Entire Cluster

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

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•

“Task 2: Restore the Cluster Database” on page 166

•

“Task 3: Start the Cluster” on page 167

 

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“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.

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Legato NetWorker, Release 7.0

Disaster Recovery Guide