HP XP Racks User Manual

Page 12

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Failback to the Primary Site..........................................................................................409

Performing Local Site Storage System Maintenance...............................................................412

Preparing...................................................................................................................413
Recovering.................................................................................................................414

Performing Remote Site Storage System Maintenance............................................................414

Preparing...................................................................................................................415
Recovering.................................................................................................................415

Performing Primary Site Host Maintenance..........................................................................416

Failover for Primary Site Host Maintenance.....................................................................416
Failback to the Primary Site..........................................................................................419

Operating procedure during a primary site storage system failure (with information lost from
memory).........................................................................................................................421

Failover.....................................................................................................................422
Failback.....................................................................................................................423

Operating procedure during a primary site storage system failure (with no information lost from
memory).........................................................................................................................427

Failover.....................................................................................................................427
Failback.....................................................................................................................427

Operating procedure during a local site storage system failure (with information lost from
memory..........................................................................................................................431

Preparing...................................................................................................................432
Recovering.................................................................................................................432

Operating procedure during a local site storage system failure (with no information lost from
memory).........................................................................................................................435
Operating procedure during a remote site storage system failure (with no information lost from
memory).........................................................................................................................435

Preparing...................................................................................................................435
Recovering.................................................................................................................435

Operating procedure during a remote site storage system failure (with no information lost from
memory).........................................................................................................................438

Preparing...................................................................................................................438
Recovering.................................................................................................................438

Primary Site Host Failure...................................................................................................438

Failover.....................................................................................................................438
Failback.....................................................................................................................441

Operating procedure during a path failure between the primary site storage system and the local
site storage system...........................................................................................................443

Preparing...................................................................................................................444
Recovering.................................................................................................................444

Actions to be Taken When the Delta Resync Function Cannot be Set Up or Operated
Successfully.....................................................................................................................445

Managing the HOLDTRNS Status..................................................................................446
When Copy Pairs Do Not Change to HOLD Status..........................................................447
Managing the HOLDER Status......................................................................................448

If the pair status changes to HOLDER before execution of the command YKRESYNC
DELTAJNL..............................................................................................................448
If the pair status changes to HOLDER after execution of the command YKRESYNC
DELTAJNL..............................................................................................................448

If Pair Status Changes to NODELTA...............................................................................450
About Containers with Pairs of Mixed Pair Statuses..........................................................451
Ensuring Successful Completion of Delta Resync in Advance.............................................451

Using a 2DC configuration with HyperSwap and Continuous Access Journal Z.............................453

Operation startup procedure.............................................................................................454
Performing primary storage system maintenance..................................................................455

Failover.....................................................................................................................455

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