HP XP7 Storage - Manual (Page 5)

Fast Snap pair resynchronization..............................................................................................83
Pair resynchronization methods............................................................................................83
Forward resynchronization..............................................................................................83
Reverse resynchronization...............................................................................................83
Resynchronizing Fast Snap pairs..........................................................................................83
Workflow for assigning MU numbers to deleted snapshot data............................................85
Deleting Fast Snap pairs..........................................................................................................85
Workflow for accelerating the pair deletion process...............................................................87
Releasing Fast Snap pairs...................................................................................................87
Workflow for removing snapshot groups...............................................................................87
5 Monitoring and maintaining Fast Snap........................................................88
Monitoring pair information ....................................................................................................88
Viewing summary replication information..............................................................................88
Viewing local replication summary information......................................................................90
Viewing LDEV properties.....................................................................................................91
Viewing the number of pairs and a list of pairs......................................................................96
Fast Snap pair status definitions......................................................................................97
Monitoring pair properties .................................................................................................98
Monitoring synchronous rates............................................................................................101
Monitoring consistency groups...............................................................................................104
Viewing the number of consistency groups..........................................................................104
Viewing consistency group list...........................................................................................105
Viewing consistency group properties.................................................................................106
Viewing Fast Snap pair task history.........................................................................................107
Viewing the number of cache management devices...................................................................110
Managing pools...................................................................................................................110
Monitoring pool information..............................................................................................111
Viewing formatted pool capacity and pool usage rates.........................................................113
Workflow for rebalancing pool volume usage rates among parity groups................................114
Viewing the progress of rebalancing pool volume usage rates and levels.................................114
Increasing pool capacity...................................................................................................118
Available pool capacity formatting and increasing pool capacity......................................120
Decreasing pool capacity.................................................................................................121
Stopping the process of decreasing pool capacity...........................................................123
Editing the data pool warning threshold..............................................................................124
Editing pool names..........................................................................................................126
Recovering blocked pools.................................................................................................128
Workflow for deleting pools..............................................................................................130
Deleting pools............................................................................................................130
Managing virtual volumes......................................................................................................132
Editing virtual volume names.............................................................................................132
Releasing virtual volume definitions....................................................................................135
Workflow for deleting V-VOLs specified for Fast Snap S-VOLs.................................................135
Deleting virtual volumes...............................................................................................135
Maintaining pairs by switching off the storage system power and replacing the microcode.............136
Workflow for switching off the power supply........................................................................136
Power supply and existing shared memory......................................................................136
Power supply and losing data in shared memory.............................................................137
Preventing the loss of pool and pair data............................................................................137
6 Troubleshooting......................................................................................138
General troubleshooting........................................................................................................138
Workflow for completing SIMs related to cache management devices.....................................140
Calculating the number of the remaining cache management devices................................141
Workflow for correcting problems related to SIMs................................................................141
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