HP XP7 User Manual

Formatting all LDEVs in a parity group..................................................................................60
Assigning an MP blade ..........................................................................................................60
Assigning an MP blade to a resource...................................................................................60
Changing the MP blade assigned to an LDEV........................................................................61
5 Configuring thin provisioning ....................................................................62
Thin Provisioning overview.......................................................................................................62
Smart Tiers overview...............................................................................................................62
Thin provisioning requirements.................................................................................................62
License requirements...........................................................................................................62
Pool requirements...............................................................................................................62
Pool-VOL requirements........................................................................................................63
THP V-VOL requirements......................................................................................................65
Requirements for increasing THP V-VOL capacity....................................................................66
Operating system and file system capacity............................................................................66
Using Thin Provisioning or Smart Tiers with other HP XP7 Storage products....................................68
Interoperability of THP V-VOLs and pool-VOLs........................................................................68
Business Copy pair status for reclaiming zero pages...............................................................70
Continuous Access Synchronous...........................................................................................70
High Availability................................................................................................................71
Continuous Access Journal..................................................................................................72
Business Copy...................................................................................................................72
Auto LUN..........................................................................................................................73
Fast Snap.........................................................................................................................74
Cache Partition CLPR setting................................................................................................74
Resource Partition...............................................................................................................75
Thin Provisioning workflow.......................................................................................................75
Smart Tiers............................................................................................................................76
About tiered storage...........................................................................................................76
Tier monitoring and data relocation......................................................................................77
Smart Pool........................................................................................................................77
Tier monitoring and relocation cycles....................................................................................78
Tier relocation flow............................................................................................................81
Tier relocation rules, restrictions, and guidelines.....................................................................83
Conditions for the discontinuance of performance monitoring or tier relocation..........................84
Buffer area of a tier............................................................................................................86
Setting external volumes for each tier....................................................................................87
Execution modes for tier relocation.......................................................................................88
Execution modes when using Remote Web Console...........................................................88
Execution modes when using RAID Manager....................................................................91
Relocation speed...............................................................................................................92
Monitoring modes..............................................................................................................92
Cautions when using monitoring modes...........................................................................93
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........................................................101
Example of reserving tier capacity.................................................................................102
Notes on tiering policy settings.....................................................................................103
Execution mode settings and tiering policy......................................................................105
Contents 5

HP XP7 Specifications

General

Brand	HP
Model	XP7
Category	Storage
Language	English