HP XP Racks - Manual (Page 14)

Operating procedure during a primary site storage system failure (with no information lost from
memory).........................................................................................................................509
Failover.....................................................................................................................510
Failback.....................................................................................................................510
Operating procedure during an intermediate site storage system failure (with information lost from
memory).........................................................................................................................512
Preparing...................................................................................................................513
Recovering.................................................................................................................515
Operating procedure during an intermediate site storage system failure (with no information lost
from memory)..................................................................................................................518
Operating procedure during a remote site storage system failure (with information lost from
memory).........................................................................................................................519
Preparing...................................................................................................................519
Recovering.................................................................................................................519
Operating procedure during a remote site storage system failure (with no information lost from
memory).........................................................................................................................522
Preparing...................................................................................................................522
Recovering.................................................................................................................523
Operating procedure during a primary site host failure.........................................................523
Failover.....................................................................................................................524
Failback.....................................................................................................................525
Operating procedure during a path failure between the primary site storage system and the
intermediate site storage system.........................................................................................527
Preparing...................................................................................................................528
Recovering.................................................................................................................530
Using a 4x4x4 Delta Resync configuration...............................................................................532
Performing primary site storage system maintenance.............................................................534
Failover.....................................................................................................................534
Failback.....................................................................................................................537
Performing local site storage system maintenance.................................................................540
Preparing...................................................................................................................541
Recovering.................................................................................................................542
Performing remote site storage system maintenance..............................................................543
Preparing...................................................................................................................544
Recovering.................................................................................................................544
Performing primary site host maintenance...........................................................................545
Failover.....................................................................................................................545
Failback.....................................................................................................................548
Operating procedure during a primary site storage system failure (with information lost from
memory).........................................................................................................................550
Failover.....................................................................................................................551
Failback.....................................................................................................................552
Operating procedure during a primary site storage system failure (with no information lost from
memory).........................................................................................................................557
Failover.....................................................................................................................558
Failback.....................................................................................................................558
Operating procedure during a local site storage system failure (with information lost from
memory).........................................................................................................................562
Preparing...................................................................................................................562
Recovering.................................................................................................................564
Operating procedure during a local site storage system failure (with no information lost from
memory).........................................................................................................................568
Operating procedure during a remote site storage system failure (with information lost from
memory).........................................................................................................................568
Preparing...................................................................................................................568
14 Contents