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

Disaster Recovery
Local Server Failure
A normal failover occurs if one of the cluster nodes fails. All the resources defined in
the cluster groups that were running on the failed node will attempt to switch over to
the surviving nodes. As with a cluster resource failure, no storage subsystem failover
is required. This is also the case when a cluster node is brought down for a scheduled
event such as system maintenance.
Use the standard failback mechanisms provided by MSCS after the failed server has
been repaired or replaced. The server node automatically joins the cluster when the
repaired server comes back online. The failback of each cluster group is determined
by the failback policy that has been defined in MSCS for that group. Remove the
failed server from the cluster before reinstalling the operating system if the server
must be replaced. Then install MSCS and join it to the existing cluster. Fail back to
the other server to perform a failback after a resource failure. There is no storage
failback because there was no storage failover.
Figure 3-2: Local server failure
HP ProLiant Cluster HA/F500 for Enterprise Virtual Array Enhanced DT Supplement Guide 3-3
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