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

Disaster Recovery
Source Site Failover
A small amount of downtime might occur if the Quorm disk is at the source site. The
cluster is not available during this time until a site failover is performed.
Refer to the Continuous Access 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 Continuous Access guide for detailed instructions about both planned
and unplanned failover procedures.
Figure 3-3: Source site failover
HP recommends the cluster nodes at the destination site be rebooted. However,
depending on the SAN configuration, a rescan of the disks at the destination site can
be attempted.
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