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| Oracle Solaris Cluster Geographic Edition 3.3 5/11 Release Notes

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## Documentation Addendum

This section discusses known errors or omissions for man pages, documentation, or online help and steps to correct these problems.

### Switchover Cannot Be Performed with Asynchronous SRDF (6389092)

Problem Summary: WhenEMC Symmetrix Remote Data Facility (SRDF) data replication is used, Geographic Edition software does not allow you to issue the geopg switchover command if a device group that is included in a protection group is set to Asynchronous mode. The failback-switchover procedure that is included in the Geographic Edition documentation for SRDF therefore does not work as written for device groups in Asynchronous mode because the procedure includes the geopg switchover command.

Workaround: To perform a failback-switchover, after you resynchronize the clusters in the partnership, temporarily change device groups from Asynchronous mode to Synchronous mode by using the following command:

    # symrdf -g devicegroup set mode sync

After you complete and verify the switchover, set the device groups back to Asynchronous mode by using the following command:

    # symrdf -g devicegroup set mode async

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