HP XP7 Business Continuity Manager User Guide (TK954-96005)

9. Perform a remote scan of the storage systems of the remote sites:
Perform a scan over a range that contains volumes to be defined in the copy group.
For details on how to perform a scan to acquire storage system information, see “Acquiring
volume information” (page 583).
Steps on the secondary host (3DC Cascade configuration)
1. Scan the storage system at the remote site:
• Perform a scan over a range that contains volumes to be defined in the copy group and
a command device (for the reverse direction) to be registered in the storage system of
the remote site.
• A DAD ID assigned by a scan (Local Device Address Domain ID in the Set Defaults panel)
must be the same DAD ID assigned by performing a remote scan at the remote site from
the primary host.
For details on how to perform a scan to acquire storage system information, see “Acquiring
volume information” (page 583).
2. Define a path set consisting of inter-CU logical paths (Intermediate → Primary) and inter-DKC
logical paths (Remote → Intermediate) that are in the reverse direction (or specify a path using
Remote Web Console).
Defining a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration 161