HP Legato Networker 154

Performing a Cluster-Wide Recovery

This section describes how to perform a complete cluster recovery, including reinstalling the operating system on all nodes in the cluster.

How to Perform a Cluster-Wide Recovery

To recover an entire cluster, perform the following tasks:

	•	“Task1: Install the Software” on page 154
	•	“Task 2: Restore the Cluster Database” on page 154
	•	“Task 3: Start the Cluster” on page 155
	•	“Task 4: Restore the Data” on page 156
10	Task1: Install the Software
	To install the software:
	1.	Install the operating system and cluster software on each node.
	1.
	2.	Install the NetWorker software as required within the HP-UX
		MC/ServiceGuard cluster environment. For detailed instructions, refer to
		the Legato NetWorker Installation Guide, HP-UX Version.

Task 2: Restore the Cluster Database

1.Select any node in the cluster and run the NetWorker server and client software on that node.

2.Re-create the cluster configuration and the NetWorker software configuration and control files. The default location for the cluster configuration file is /etc/cmcluster and the default directory for the NetWorker configuration and control files is /etc/cmcluster/NetWorker.

•If you know where the latest save sets are located, use the scanner command to restore the configuration files:

#scanner -S saveset_id device_path uasm -i y -rv

where device_path is the path to the tape device.

•If you do not know the save set ID, use the scanner device_path command to determine the saveset ID, as follows:

# scanner device_path > /tmp/savefile 2>&1

154	Legato NetWorker, Release 7.0
	Disaster Recovery Guide