Restoring a failed data center

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After you resolve the issue causing the data center failure, return the data centers back to their original configuration.

Procedure

To restore the failed data center, complete the following steps:

  1. Start all of the ZooKeeper servers in the failed data center.
  2. Start all of the Cassandra servers in the failed data center.
  3. Start all of the WebSphere® MQ servers in the failed data center.
  4. Ensure that the shared disk is mounted properly on all of the servers in the failed data center.
  5. Validate that all of the Cassandra servers are operational by checking the output of the Cassandra nodetool status command.
  6. Start the Global Mailbox management nodes in the failed data center using startGM.sh.
  7. Start the Sterling B2B Integrator nodes in the failed data center using runAll.sh.
  8. Ensure that files are being uploaded to both data centers and that messages are processing.