HP XP P9500 Storage - Manual (Page 6)

Cautions when using monitoring modes...........................................................................93
Notes on performing monitoring..........................................................................................94
Downloading the tier relocation log file................................................................................94
Tier relocation log file contents........................................................................................94
Tiering levels of tiering policy..............................................................................................94
Tiering policy examples..................................................................................................95
Setting tiering policy on a THP V-VOL..............................................................................95
Tiering policy levels.......................................................................................................96
Viewing the tiering policy in the performance graph..........................................................96
Reserving tier capacity when setting a tiering policy..........................................................98
Example of reserving tier capacity...................................................................................99
Notes on setting tiering level.........................................................................................100
New page assignment tier...........................................................................................101
Relocation priority.......................................................................................................102
Formatted pool capacity..............................................................................................102
Rebalancing the usage level among pool-VOLs...............................................................103
Execution mode settings and tiering policy......................................................................103
Changing the tiering policy level on a THP V-VOL............................................................104
Changing relocation priority setting of V-VOL.......................................................................105
Smart Tiers workflow........................................................................................................105
Smart Tiers tasks and parameters.......................................................................................107
Task and parameter settings.........................................................................................107
Display items: Setting parameters..................................................................................108
Display items: Capacity usage for each tier....................................................................109
Display items: Performance monitor statistics...................................................................109
Display items: Operation status of performance monitor/relocation....................................109
Managing Smart Tiers......................................................................................................109
Changing pool for Thin Provisioning to pool for Smart Tiers..............................................109
Changing monitoring and tier relocation settings.............................................................111
Changing monitoring mode setting................................................................................111
Changing buffer space for new page assignment setting..................................................112
Changing buffer space for tier relocation setting.............................................................112
Viewing pool tier information.............................................................................................113
Viewing THP V-VOL tier information....................................................................................113
Changing a pool for Smart Tiers to a pool for Thin Provisioning..................................................113
Working with pools..............................................................................................................114
About pools....................................................................................................................114
About pool-VOLs..............................................................................................................114
Pool status.......................................................................................................................115
Creating a pool...............................................................................................................115
Working with THP V-VOLs......................................................................................................119
About THP V-VOLs...........................................................................................................119
Relationship between a pool and THP V-VOLs......................................................................120
Creating V-VOLs..............................................................................................................120
Editing a THP V-VOL's SSID...............................................................................................122
Changing THP V-VOL settings............................................................................................123
Removing the THP V-VOL to be registered............................................................................123
Formatting LDEVs in a Windows environment......................................................................123
Monitoring capacity and performance....................................................................................124
Monitoring pool capacity..................................................................................................124
Monitoring pool usage levels.............................................................................................124
Monitoring performance...................................................................................................124
Managing I/O usage rates example.............................................................................125
Tuning with Smart Tiers.....................................................................................................126
Thresholds...........................................................................................................................126
6 Contents