HP P6000 Continuous Access Implementation Guide (T3680-96431, August 2012)
Cascaded replication
In cascaded replication, one DR group is replicated from array A to array B, and another DR group
is replicated from array B to array C. In this configuration, the source disk for replication from the
array B to array C is a snapclone of the destination disk in the replication from array A to array
B. See Figure 16 (page 49). Snapclone normalization must complete on array B before the new
snapclone can be put in a new DR group.
Figure 16 Cascaded replication
1. Array A
2. Array B
3. Array C
NOTE: Using a mirrorclone instead of a snapclone to make the point-in-time copy of the destination
on array B is not supported.
Planning replication relationships 49