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manual abstract
Calculating the number of Fast Snap pairs based on the number of cache management
devices........................................................................................................................32
Calculating the number of cache management devices...........................................................32
Fast Snap cache management device requirements............................................................32
Effects on I/O performance of the storage system...................................................................33
Calculating pool capacity...................................................................................................33
Pool capacity calculations..............................................................................................33
Using external volumes as pool-VOLs....................................................................................33
3 Performing configuration tasks....................................................................35
Configuration tasks workflow....................................................................................................35
Pool volumes with system area..................................................................................................35
Creating Fast Snap data pools.................................................................................................36
Creating V-VOLs.....................................................................................................................37
Editing the V-VOL SSID.......................................................................................................39
Changing the V-VOL settings...............................................................................................40
Removing the V-VOL to be registered....................................................................................40
On setting up a command device.............................................................................................40
4 Pair tasks.................................................................................................41
Creating Fast Snap pairs.........................................................................................................41
Fast Snap pair creation workflow using Remote Web Console.................................................42
Splitting pairs.........................................................................................................................44
Using the At-Time Snapshot function to acquire snapshot data for a consistency group................45
At-Time Snapshot when Fast Snap volume shared with Cnt Ac-J and Cnt Ac-S.............................45
Notes on using Fast Snap P-VOLs as Continuous Access Synchronous or Continuous Access
Journal pair volumes......................................................................................................47
Notes on acquiring snapshot data.......................................................................................48
Restoring pairs.......................................................................................................................48
Deleting snapshot data............................................................................................................49
Deleting FS pairs....................................................................................................................49
5 Monitoring and maintenance.....................................................................51
Monitoring pair information ....................................................................................................51
Viewing the number of pairs and a list of pairs......................................................................51
Pair status definitions.....................................................................................................51
Monitoring pair properties..................................................................................................51
Monitoring synchronous rates..............................................................................................52
Monitoring consistency groups.................................................................................................53
Viewing the number of consistency groups............................................................................53
Viewing a list of consistency groups.....................................................................................53
Viewing consistency group properties...................................................................................53
Monitoring pair operation history.............................................................................................53
Monitoring pair operation history using secondary window.....................................................54
Monitoring licensed capacity...................................................................................................57
Monitoring the number of cache management devices.................................................................57
Managing pools and V-VOLs...................................................................................................57
Monitoring pool information................................................................................................57
Viewing formatted pool capacity..........................................................................................57
Increasing pool capacity.....................................................................................................58
Changing pool threshold....................................................................................................59
Changing pool names........................................................................................................59
Recovering pools...............................................................................................................60
Deleting pools...................................................................................................................61
Changing V-VOL names......................................................................................................61
Deleting V-VOLs.................................................................................................................62
4
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