Cluster/iX for the HP e3000 is an orderable product that allows
the user to create a multiple server configuration with any HP-supported
dual-ported array to form a non-complex high availability cluster.
The new Heartbeat enhancement allows the user to create job scripts
to automatically control the switchover process in the event that
the primary cluster server aborts or its access to the data becomes
unavailable.
Description
The Beat and Listen commands have been
incorporated into the Cluster/iX SXOUtil
program to allow the user to set up job scripts on the both the
primary and secondary systems. The primary system's job
script is responsible for calling the Beat command. This command
causes the job to wait indefinitely
while it "beats" the heartbeat counter on the
cluster volume set owned by this system.
The secondary system is responsible for incorporating a Listen
command in its job script that monitors the heartbeat
counter on the cluster volume set. In the event that the heartbeat
stops, the secondary system can detect this change and, depending
on the job script, change the ownership of the cluster volume set,
open it and restart the application for users to access from the
secondary system.
Who Should Use Cluster/iX
Users who require a non-complex high availability solution
that allows the users to access business critical data from a secondary
system within seconds of the primary system experiencing an outage
should use Cluster/iX.
The Cluster/iX solution addresses machine outages typically
caused by:
System Aborts
Adapter card failures
Catastrophic server hardware failure
NOTE: Failover/iX is not supported in a Cluster/iX configuration.