HP XP7 Provisioning for Mainframe Systems User Guide (H6F56-96008)

Thin provisioning requirements.................................................................................................54
License requirements...........................................................................................................54
Pool requirements...............................................................................................................54
Pool-VOL requirements........................................................................................................55
THP V-VOL requirements......................................................................................................57
Requirements for increasing THP V-VOL capacity....................................................................57
Using Thin Provisioning Z or Smart Tiers Z with other HP XP7 Storage products...............................59
Interoperability of THP V-VOLs and pool-VOLs........................................................................59
Continuous Access Synchronous Z........................................................................................60
Continuous Access Journal Z...............................................................................................61
Business Copy Z................................................................................................................62
Auto LUN..........................................................................................................................63
Cache Partition CLPR setting................................................................................................64
Resource Partition...............................................................................................................64
Thin Provisioning Z workflow....................................................................................................64
Smart Tiers Z.........................................................................................................................65
About tiered storage...........................................................................................................65
Tier monitoring and data relocation......................................................................................65
Smart Pool........................................................................................................................65
Tier monitoring and relocation cycles....................................................................................65
Tier relocation flow............................................................................................................71
Tier relocation rules, restrictions, and guidelines.....................................................................73
Buffer area of a tier............................................................................................................76
Setting external volumes for each tier...............................................................................77
Smart Tiers Z cache specifications and requirements...............................................................78
Execution modes for tier relocation.......................................................................................78
Execution modes when using Remote Web Console...........................................................78
Execution modes when using RAID Manager....................................................................81
Relocation speed...............................................................................................................83
Monitoring modes..............................................................................................................83
Cautions when using monitoring modes...........................................................................84
Notes on performing monitoring..........................................................................................85
Downloading the tier relocation log file................................................................................85
Tier relocation log file contents........................................................................................85
Tiering policy....................................................................................................................88
Tiering policy expansion................................................................................................89
Tiering policy examples..................................................................................................89
Setting tiering policy on a THP V-VOL..............................................................................90
Tiering policy levels.......................................................................................................91
Viewing the tiering policy in the performance graph..........................................................91
Reserving tier capacity when setting a tiering policy..........................................................93
Example of reserving tier capacity...................................................................................93
Notes on tiering policy settings.......................................................................................95
New page assignment tier.............................................................................................96
Relocation priority.........................................................................................................97
Assignment tier when pool-VOLs are deleted.....................................................................98
Formatted pool capacity................................................................................................99
Rebalancing the usage level among parity groups.............................................................99
Execution mode settings and tiering policy......................................................................100
Changing the tiering policy level on a THP V-VOL............................................................101
Changing new page assignment tier of a V-VOL..................................................................101
Opening the Edit Tiering Policies window............................................................................102
Changing a tiering policy.................................................................................................102
To change the tiering policy..........................................................................................102
Changing relocation priority setting of a V-VOL....................................................................103
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