Back Up the Cluster

 

• System topology information. Generate this information using the

 

hwmgr -view command:

 

# hwmgr -view hierarchy > sys_topology_file

 

where sys_topology_file is a file to which you are saving output from the

 

hwmgr -view hierarchy command.

 

• The device layer information. Generate this information as follows:

 

 

# hwmgr -view devices > device_layer

9

where device_layer is a file to which you are saving output from the

 

hwmgr -view devices command.

 

 

Back Up the Cluster

To ensure that the cluster is disaster-ready, perform the following steps: 1. Back up the entire cluster.

a. Set up a NetWorker Client resource for the cluster’s default alias.

b. Add the host name of each physical cluster node to the Client resource’s Remote Access list.

c. Specify a save set of All for the Client resource. A save set of All ensures that filesystems from all nodes are backed up.

d. Create a NetWorker Group resource, add the Client resource to this group, and schedule the group for regular backups.

e. Perform at least one full backup.

2. Optionally, back up the stand-alone HP Tru64 boot drive on the cluster’s primary node to a remote NetWorker server. You may need to mount the drive partitions temporarily and execute a manual save.

Restoring One or More Nodes in a Cluster

This section explains how to recover one or more physical nodes in a cluster. If all of the physical nodes in a cluster have been destroyed, see “Restoring an Entire Cluster” on page 143.

Note: To help ensure a successful recovery, have on hand the information listed in the section titled, “Prerequisites” on page 139. This information should have been recorded prior to the disaster.

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Legato NetWorker, Release 7.0

Disaster Recovery Guide