HP B6960-90078 manual

Disaster Recovery

Advanced Recovery Tasks

•the primary node must have write access to all IDB volumes, when recovering the Cell Manager

•all other nodes must be shut down until all physical disk resources are online

In this case, you have to restore the primary node with the quorum disk first. The IDB has to be restored as well if the Cell Manager has been installed in the cluster. Optionally you can restore the MSCS database. After the primary node has been restored, you can restore all remaining nodes.

NOTE	The MSCS service uses a hard disk signature written into the MBR of
	every hard disk to identify physical disks. If the shared cluster disks
	have been replaced, this means that the disk signatures were changed
	during Phase 1 of disaster recovery. As a consequence, the Cluster
	Service will not recognize the replaced disks as valid cluster resources,
	and cluster groups depending on those resources will fail. See “Restoring
	Hard Disk Signatures On Windows” on page 495 for more information.

Perform the following steps to restore the primary node:

1.Perform disaster recovery of the primary node (including the quorum disk).

•Assisted Manual Disaster Recovery: All user and application data on the quorum disk will be restored automatically by the drstart command. (-full_clusoption)

•EADR and OBDR: When you are asked to select the scope of recovery, select Full with Shared Volumes to restore quorum disk.

•Automated System Recovery: All user and application data on the quorum disk will be automatically restored.

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