HP StoreAll Storage - Manual (Page 8)

Modifying a snapshot schedule.........................................................................................241
Managing software snapshots................................................................................................241
Taking an on-demand snapshot.........................................................................................241
Determining space used by snapshots................................................................................242
Accessing snapshot directories...........................................................................................242
Restoring files from snapshots............................................................................................244
Deleting snapshots...........................................................................................................244
Moving files between snap trees.............................................................................................248
Backing up snapshots............................................................................................................248
18 Creating block snapshots.......................................................................249
Setting up snapshots.............................................................................................................250
Preparing the snapshot partition........................................................................................250
Registering for snapshots..................................................................................................250
Discovering LUNs in the array............................................................................................250
Reviewing snapshot storage allocation................................................................................250
Automated block snapshots....................................................................................................250
Creating automated snapshots using the Management Console.............................................251
Creating an automated snapshot scheme from the CLI..........................................................255
Other automated snapshot procedures................................................................................255
Managing block snapshots....................................................................................................256
Creating an on-demand snapshot......................................................................................256
Mounting or unmounting a snapshot..................................................................................256
Recovering system resources on snapshot failure...................................................................256
Deleting snapshots...........................................................................................................257
Viewing snapshot information............................................................................................257
Accessing snapshot file systems..............................................................................................258
Troubleshooting block snapshots.............................................................................................260
19 Using data tiering.................................................................................261
Creating and managing data tiers..........................................................................................261
Viewing tier assignments and managing segments....................................................................267
Viewing data tiering rules......................................................................................................268
Running a migration task.......................................................................................................270
Configuring tiers and migrating data using the CLI....................................................................271
Changing the tiering configuration with the CLI.........................................................................274
Writing tiering rules..............................................................................................................275
Rule attributes..................................................................................................................275
Operators and date/time qualifiers....................................................................................275
Rule keywords.................................................................................................................276
Migration rule examples...................................................................................................276
Ambiguous rules..............................................................................................................277
20 Using file allocation..............................................................................279
Overview............................................................................................................................279
File allocation policies......................................................................................................279
How file allocation settings are evaluated...........................................................................280
When file allocation settings take effect on the StoreAll client.................................................281
Using CLI commands for file allocation...............................................................................281
Setting file and directory allocation policies.............................................................................281
Setting file and directory allocation policies from the CLI.......................................................282
Setting segment preferences...................................................................................................282
Creating a pool of preferred segments from the CLI..............................................................283
Restoring the default segment preference.............................................................................284
Tuning allocation policy settings.............................................................................................284
Listing allocation policies.......................................................................................................285
8 Contents