HP XP P9500 Storage - Manual (Page 11)

Failover.....................................................................................................................363
Failback.....................................................................................................................366
Operating procedure during a primary site storage system failure (volatile)..............................368
Failover.....................................................................................................................368
Failback.....................................................................................................................369
Operating procedure during a primary site storage system failure (nonvolatile)........................373
Failover.....................................................................................................................373
Failback.....................................................................................................................373
Operating procedure during a storage system failure (volatile) at the primary site and remote site
1...................................................................................................................................373
Failover.....................................................................................................................373
Failback.....................................................................................................................374
Operating procedure during a storage system failure (nonvolatile) at the primary site and remote
site 1.............................................................................................................................376
Failover.....................................................................................................................376
Failback.....................................................................................................................376
Operating procedure during a storage system failure (volatile) at remote site 1 or 2..................376
Preparing...................................................................................................................376
Recovering.................................................................................................................376
Operating procedure during a storage system failure (nonvolatile) at remote site 1 or 2............378
Preparing...................................................................................................................378
Recovering.................................................................................................................378
Primary site host failure (when operations can be performed on both Continuous Access Journal
Z copy pairs)..................................................................................................................379
Failover.....................................................................................................................380
Failback.....................................................................................................................382
Primary site host failure (when operations can be performed on only one of the Continuous Access
Journal Z copy pairs)........................................................................................................384
Failover.....................................................................................................................384
Failback.....................................................................................................................385
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...........................................................387
Preparing...................................................................................................................387
Recovering.................................................................................................................387
Using a Delta Resync Configuration........................................................................................387
Performing Primary Site Storage System Maintenance...........................................................389
Failover for Primary Site Storage System Maintenance......................................................389
Failback to the Primary Site..........................................................................................392
Performing Local Site Storage System Maintenance...............................................................395
Preparing...................................................................................................................396
Recovering.................................................................................................................397
Performing Remote Site Storage System Maintenance............................................................397
Preparing...................................................................................................................398
Recovering.................................................................................................................398
Performing Primary Site Host Maintenance..........................................................................399
Failover for Primary Site Host Maintenance.....................................................................399
Failback to the Primary Site..........................................................................................402
Operating Procedure During a Primary Site Storage System Failure (Volatile)...........................404
Failover.....................................................................................................................405
Failback.....................................................................................................................406
Operating Procedure During a Primary Site Storage System Failure (Nonvolatile).....................410
Failover.....................................................................................................................410
Failback.....................................................................................................................410
Operating Procedure During a Local Site Storage System Failure (Volatile)...............................414
Preparing...................................................................................................................415
Contents 11