3DC multi-target configuration requirements
At least one storage system at the primary site, TC secondary site, and UR secondary site. The 3DC multi-target configuration can also be used with multiple storage systems at the primary and secondary sites. However, 3DC multi-target configurations using delta resync are not supported in configurations with multiple primary and secondary systems.
Supported storage systems for 3DC multi-target configurations: VSP G800, VSP F800, VSP G1000, and HUS VM.
CCI is recommended at all three sites.
Device Manager - Storage Navigator is required at all three sites.
The primary site requires the following:
TrueCopy
Universal Replicator
TC primary volume (P-VOL), which is also the UR P-VOL. This is the primary production volume.
UR master journal volume
The TC secondary site requires the following:
TrueCopy
TC S-VOL
The UR secondary site requires the following:
Universal Replicator
UR S-VOL
UR restore journal