mount the database after restore of an LCR copy to the location where original
database resides.
Microsoft Exchange Server 2007 configuration in CCR environments
In CCR environments where a production database resides on a different EVA disk
array from the database copy, and the backup system and the application system
are not the same physical system, ensure that:
• The backup system is connected to the same disk array where the replicas (volume
shadow copies) of backup objects (either production database or database copy)
will be created. If you back up the production database, the backup system must
be connected to the disk array on which the production database resides. If you
back up the database copy, the backup system must be connected to the disk
array on which the database copy resides.
• The VSS/VDS hardware provider is configured for the same Command View on
both EVA disk arrays.
If the above prerequisites are not met, failed presentation of replicas to the backup
system causes entire backup session to fail.
In cases where the application and backup systems are the same, ensure that the
VSS/VDS hardware provider is configured for the same Command View on both
EVAs. Otherwise, rotation and deletion of old replicas from other EVA disk array is
not possible.
If a failover occurs, the backup using the same backup specification as before failover
will fail, since the backup system is no longer connected to the disk array where the
new replicas reside. In this case, you can:
• Perform manual failover to restore the same disk array connectivity configuration
as before the first failover.
• Create a new backup specification with the new backup objects specified.
• Establish a connection between the backup system and the disk array where the
new replicas reside.
For restore limitations in this scenario, see “Limitations” on page 398.
Writers specifics
This section describes specific information about VSS writers, that you need to take
into account before backing up or restoring the writers.
Zero downtime backup integration guide 355
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