HP XP P9500 Storage - Manual (Page 7)

Working with THP V-VOLs......................................................................................................139
About THP V-VOLs...........................................................................................................139
Relationship between a pool and THP V-VOLs......................................................................140
Creating V-VOLs..............................................................................................................140
Editing a THP V-VOL's SSID...............................................................................................142
Changing THP V-VOL settings............................................................................................143
Removing the THP V-VOL to be registered............................................................................143
Formatting LDEVs in a Windows environment......................................................................143
Monitoring capacity and performance....................................................................................143
Monitoring pool capacity..................................................................................................143
Monitoring pool usage levels.............................................................................................144
Monitoring performance...................................................................................................144
Managing I/O usage rates example.............................................................................145
Tuning with Smart Tiers.....................................................................................................145
Thresholds...........................................................................................................................146
Pool utilization thresholds..................................................................................................146
Pool subscription limit.......................................................................................................146
Changing pool thresholds.................................................................................................147
Changing the pool subscription limit...................................................................................148
Working with SIMs...............................................................................................................148
About SIMs.....................................................................................................................148
SIM reference codes.........................................................................................................148
Automatic completion of a SIM .........................................................................................149
Manually completing a SIM..............................................................................................149
Managing pools and THP V-VOLs...........................................................................................150
Viewing pool information..................................................................................................150
Viewing formatted pool capacity........................................................................................151
Viewing the progress of rebalancing the usage level among pool-VOLs ..................................152
Increasing pool capacity...................................................................................................152
Changing a pool name....................................................................................................153
Recovering a blocked pool................................................................................................154
Decrease pool capacity....................................................................................................154
About decreasing pool capacity....................................................................................154
Decreasing pool capacity.............................................................................................156
Stopping the decrease of pool capacity.........................................................................156
Deleting a tier in a pool....................................................................................................156
Deleting a pool...............................................................................................................157
Changing external LDEV tier rank......................................................................................158
Increasing THP V-VOL capacity..........................................................................................158
Changing the name of a THP V-VOL...................................................................................159
About releasing pages in a THP V-VOL...............................................................................159
Releasing pages in a THP V-VOL...................................................................................160
Stopping the release of pages in a THP V-VOL................................................................161
Enabling/disabling tier relocation of a THP V-VOL...............................................................162
Deleting a THP V-VOL.......................................................................................................162
6 Configuring access attributes...................................................................164
About access attributes..........................................................................................................164
Access attribute requirements.................................................................................................164
Access attributes and permitted operations...............................................................................165
Access attribute restrictions.....................................................................................................165
Access attributes work flow....................................................................................................165
Assigning an access attribute to a volume................................................................................166
Changing an access attribute to read-only or protect.................................................................166
Changing an access attribute to read/write.............................................................................168
Contents 7