HP XP P9500 Storage - Manual (Page 5)

Logical path maintenance........................................................................................................86
Modifying data-transfer time threshold .................................................................................86
Deleting logical paths ........................................................................................................87
Deleting the Cnt Ac-J relationship ........................................................................................87
Managing power-off for systems and network devices .................................................................88
When power stops unexpectedly.........................................................................................88
When power is removed from primary or secondary system................................................88
When power is removed from network relay devices .........................................................88
Powering-off systems intentionally.........................................................................................88
Powering-off the primary or secondary system...................................................................89
Powering-off primary and secondary systems at the same time............................................89
Powering-off network relay devices.......................................................................................89
9 Disaster recovery operations .....................................................................91
Overview..............................................................................................................................91
General recovery procedures...................................................................................................91
Preparing for recovery .......................................................................................................91
Preparing for file and database recovery .............................................................................91
Switching host operations to the secondary site .....................................................................92
Reversing copy direction from secondary to primary sites .......................................................92
Resuming host operations at the primary site ........................................................................93
Recovery for 3 Cnt Ac-J data centers.........................................................................................93
Recovery for 3 Cnt Ac-J DC cascade configuration.................................................................93
Recovery when the primary site fails................................................................................93
Recovery when the intermediate site fails..........................................................................94
Recovery when the primary-intermediate path fails.............................................................95
Recovery for 3 Cnt Ac-J DC multi-target configuration..............................................................95
Recovery for 3 Cnt Ac-J/Cnt Ac-S data centers and 3 Cnt Ac-J data centers....................................97
Recovery for 3 Cnt Ac-J/Cnt Ac-S DC cascade configuration ...................................................97
Recovery for 3 Cnt Ac-J/Cnt Ac-S DC multi-target configuration ...............................................98
Recovering from primary site failure ................................................................................98
Recovering from primary and secondary site failure (3DC multi-target).................................99
Recovery in a delta resync configuration...............................................................................99
Problems with pair status during delta resync recovery.....................................................100
Recovery in a 2DC configuration ......................................................................................101
Recovery for configurations with Cnt Ac-J/Business Copy...........................................................102
10 Troubleshooting....................................................................................103
General troubleshooting........................................................................................................103
Troubleshooting logical paths ................................................................................................105
Troubleshooting by suspension type .......................................................................................107
Troubleshooting hardware problems affecting pairs...................................................................108
Troubleshooting with RAID Manager ......................................................................................108
Service information messages (SIMs) ......................................................................................120
Miscellaneous troubleshooting................................................................................................121
Delta resync operation......................................................................................................121
Suspension among journals ..............................................................................................121
11 Support and other resources...................................................................123
Contacting HP......................................................................................................................123
Subscription service..........................................................................................................123
Documentation feedback..................................................................................................123
Related information...............................................................................................................123
HP websites....................................................................................................................124
Conventions for storage capacity values..................................................................................124
Typographic conventions.......................................................................................................124
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