HP ProLiant Cluster HA/F500 for Enterprise Virtual Array Enhanced DT Supplement Guide

Disaster Recovery
Source Site Failover
A small amount of downtime occurs during a site failover. The cluster does not have
access to any data or applications if the source storage system fails or is no longer
available. The cluster is not available during this time.
Refer to the CA guide to determine the scenarios that warrant a failover.
There are two types of failover procedures to recover the remote copy sets: planned
and unplanned. Use the planned failover procedure when failover is a scheduled
event. Otherwise, use an unplanned failover procedure.
Refer to the CA guide for detailed instructions about both planned and unplanned
failover procedures.
IMPORTANT: Do not reinstall MSCS. It is not necessary to reinstall the MSCS at the
destination site after a site failover is performed in an HA/F500 for EVA Enhanced DT
configuration.
Figure 3-3: Source site failover
The cluster nodes at the destination site must be rebooted after you perform the site
failover procedures.
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HP CONFIDENTIAL
Writer: Bill Akers File Name: d-ch3 Disaster Recovery
Codename: Chargers II Part Number: 339223-001 Last Saved On: 5/29/03 2:46 PM