HP XP Racks - Manual (Page 5)

Assigning an MP blade ..........................................................................................................59
Assigning an MP blade to a resource...................................................................................59
Changing the MP blade assigned to an LDEV........................................................................59
5 Configuring thin provisioning ....................................................................61
Thin Provisioning overview.......................................................................................................61
Smart Tiers overview...............................................................................................................61
Thin provisioning requirements.................................................................................................61
License requirements...........................................................................................................61
Pool requirements...............................................................................................................61
Pool-VOL requirements........................................................................................................62
THP V-VOL requirements......................................................................................................64
Requirements for increasing THP V-VOL capacity....................................................................64
Operating system and file system capacity............................................................................65
Using Thin Provisioning or Smart Tiers with other HP XP7 Storage products....................................67
Interoperability of THP V-VOLs and pool-VOLs........................................................................67
Business Copy pair status for reclaiming zero pages...............................................................68
Continuous Access Synchronous...........................................................................................69
Continuous Access Journal..................................................................................................69
Business Copy...................................................................................................................70
Auto LUN..........................................................................................................................71
Fast Snap.........................................................................................................................72
Cache Partition CLPR setting................................................................................................72
Resource Partition...............................................................................................................73
Thin Provisioning workflow.......................................................................................................73
Smart Tiers............................................................................................................................74
About tiered storage...........................................................................................................74
Tier monitoring and data relocation......................................................................................74
Smart Pool........................................................................................................................74
Tier monitoring and relocation cycles....................................................................................74
Tier relocation flow............................................................................................................80
Tier relocation rules, restrictions, and guidelines.....................................................................82
Buffer area of a tier............................................................................................................85
Setting external volumes for each tier...............................................................................86
Smart Tiers cache specifications and requirements..................................................................87
Execution modes for tier relocation.......................................................................................87
Execution modes when using Remote Web Console...........................................................87
Execution modes when using RAID Manager....................................................................90
Relocation speed...............................................................................................................92
Monitoring modes..............................................................................................................92
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 policy....................................................................................................................97
Tiering policy expansion................................................................................................98
Tiering policy examples..................................................................................................98
Setting tiering policy on a THP V-VOL..............................................................................99
Tiering policy levels.....................................................................................................100
Viewing the tiering policy in the performance graph........................................................100
Reserving tier capacity when setting a tiering policy........................................................102
Example of reserving tier capacity.................................................................................102
Notes on tiering policy settings.....................................................................................104
New page assignment tier...........................................................................................105
Relocation priority.......................................................................................................106
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