HP Legato Networker User Manual download pdf (Page 141)

Legato NetWorker, Release 7.0

Disaster Recovery Guide

Chapter 9: HP TruCluster Disaster Recovery

141

How to Restore One or More Nodes in a Cluster

To recover one or more physical cluster nodes, complete the following tasks:

• “Task 1: Replace the Damaged Hardware” on page 141

• “Task 2: Verify Hardware Mappings” on page 141

• “Task 3: Partition the Down Node’s Boot Drive” on page 141

• “Task 4: Update the Cluster Configuration” on page 141

• “Task 5: Recover the Node-Specific Data” on page 142

Task 1: Replace the Damaged Hardware

Replace the damaged equipment with the same or similar model equipment as

installed previously. Connect all the equipment as previously connected.

Task 2: Verify Hardware Mappings

Open the SRM console on the node you are restoring (down node) and set the

logical mappings for the node’s managed disks and volumes to their original

settings. To help complete this step, use the information that was recorded

from the SRM console prior to the disaster.

Task 3: Partition the Down Node’s Boot Drive

To partition the down node’s boot drive, you need the original node’s partition

information. This information should have been recorded prior to the disaster.

Note: Perform this task from a working cluster node.

To partition the down node’s boot drive, use a utility such as diskconfig and

specify the original partition settings.

Task 4: Update the Cluster Configuration

To update the cluster configuration, delete the cluster node and then add it

back into the cluster. When you add the node back, cluster hardware settings

are reinitialized.

Note: Perform this task from a working cluster node.

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HP Legato Networker User Manual Page 141