Cluster Server 8.0 Agent for EMC SRDF/Star Configuration Guide - Windows

Last Published:
Product(s): InfoScale & Storage Foundation (8.0)
Platform: Windows

Performing the failback test

You can set up your cluster for a failback test.

The failback test verifies the application can fail back to its original host after a failover to a remote site.

To perform a failback test

  1. Reconnect the ESCON cable and reboot the original workload site hosts.
  2. Take the service group offline using the following command:
    hagrp -offline grpname -any

    If you run the test in a global cluster, type the command from hostc or hostd.

    Set the SRDFStar resource attribute KeepDataFrom before bringing the service group online. KeepDateFrom must point to the site from which you want to synchronize data. The default value is the site with the most recent data, which is known to the agent.

  3. Bring the service group online at the workload site using the following command:
    hagrp -online grpname -sys hosta

    The devices synchronize, and the STAR state becomes the same as when the test began.