HP XP P9500 Storage - Manual (Page 11)

Preparing...................................................................................................................372
Recovering.................................................................................................................373
Operating procedure during a path failure between the storage systems at the intermediate site
and the remote site..........................................................................................................373
Preparing...................................................................................................................373
Recovering.................................................................................................................373
Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration.................................................373
Performing primary site storage system maintenance.............................................................376
Failover.....................................................................................................................376
Failback.....................................................................................................................378
Performing storage system maintenance for remote site 1 or 2................................................381
Preparing...................................................................................................................382
Recovering.................................................................................................................382
Performing primary site host maintenance...........................................................................383
Failover.....................................................................................................................383
Failback.....................................................................................................................386
Operating procedure during a primary site storage system failure (with information lost from
memory..........................................................................................................................388
Failover.....................................................................................................................388
Failback.....................................................................................................................389
Operating procedure during a primary site storage system failure (with no information lost from
memory).........................................................................................................................393
Failover.....................................................................................................................393
Failback.....................................................................................................................393
Operating procedure during a storage system failure (with information lost from memory) (volatile)
at the primary site and remote site 1..................................................................................393
Failover.....................................................................................................................393
Failback.....................................................................................................................394
Operating procedure during a storage system failure (with no information lost from memory) at
the primary site and remote site 1......................................................................................396
Failover.....................................................................................................................396
Failback.....................................................................................................................396
Operating procedure during a storage system failure (with information lost from memory) at remote
site 1 or 2.......................................................................................................................397
Preparing...................................................................................................................397
Recovering.................................................................................................................397
Operating procedure during a storage system failure (with no information lost from memory) at
remote site 1 or 2............................................................................................................398
Preparing...................................................................................................................398
Recovering.................................................................................................................399
Primary site host failure (when operations can be performed on both Continuous Access Journal
Z copy pairs)..................................................................................................................400
Failover.....................................................................................................................400
Failback.....................................................................................................................402
Primary site host failure (when operations can be performed on only one of the Continuous Access
Journal Z copy pairs)........................................................................................................404
Failover.....................................................................................................................404
Failback.....................................................................................................................405
Operating procedure during a path failure between the storage systems at the primary site and
remote site 1, or at the primary site and remote site 2...........................................................407
Preparing...................................................................................................................407
Recovering.................................................................................................................407
Using a Delta Resync Configuration........................................................................................407
Performing Primary Site Storage System Maintenance...........................................................409
Failover for Primary Site Storage System Maintenance......................................................409
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