Managing Serviceguard Nineteenth Edition, Reprinted June 2011

NOTE: Check the Serviceguard/SGeRAC/SMS/Serviceguard Manager Plug-in Compatibility
and Feature Matrix and the latest Release Notes for your version of Serviceguard for up-to-date
information about support for CVM and CFS: http://www.hp.com/go/hpux-serviceguard-docs.
Testing the Cluster
1. Test the cluster:
• Have clients connect.
• Provide a normal system load.
• Halt the package on the first node and move it to the second node:
cmhaltpkg pkg1
cmrunpkg -n node2 pkg1
cmmodpkg -e pkg1
• Move it back.
cmhaltpkg pkg1
cmrunpkg -n node1 pkg1
cmmodpkg -e pkg1
• Fail one of the systems. For example, turn off the power on node 1. Make sure the package
starts up on node 2.
• Repeat failover from node2 back to node1.
2. Be sure to test all combinations of application load during the testing. Repeat the failover
processes under different application states such as heavy user load versus no user load, batch
jobs vs online transactions, etc.
3. Record timelines of the amount of time spent during the failover for each application state. A
sample timeline might be 45 seconds to reconfigure the cluster, 15 seconds to run fsck on
the file systems, 30 seconds to start the application and 3 minutes to recover the database.
342 Integrating HA Applications with Serviceguard