This appendix provides information about combining Universal Replicator
and TrueCopy operations. For details about
TrueCopy, see the
TrueCopy User Guide.
Universal Replicator provides asynchronous, real-time replication of data from one storage system to another over any distance to satisfy the most demanding business continuity and disaster recovery requirements. While conventional replication solutions push updates from the primary storage system to a remote location,
Universal Replicator at the remote site pulls changes from journal volumes maintained by the storage system at the primary site. This approach offloads replication overhead from the primary storage system and dramatically reduces the impact of replication on the business application. Transmitted record sets include a sequence number, enabling the replication engine to verify receipt of all records at the remote site and to sequence writes in the correct order for storage replication.
With the delta resync configuration, you bring the S-VOL to a consistent state more quickly after failure because only missing differential data must be copied.
