HP 3PAR StoreServ 7200 2-node Manual page 4

The Host Explorer Software Agent.............................................................................................31
6 Chunklets................................................................................................32
Overview..............................................................................................................................32
Physical Disk Chunklets............................................................................................................32
Spare Chunklets.....................................................................................................................32
7 Logical Disks............................................................................................34
Overview..............................................................................................................................34
Logical Disks and Common Provisioning Groups.........................................................................34
Logical Disk Types..................................................................................................................34
RAID Types............................................................................................................................35
RAID 0.............................................................................................................................35
RAID 1 and 10..................................................................................................................35
RAID 5 and 50..................................................................................................................36
RAID Multi-Parity................................................................................................................37
Logical Disk Size and RAID Types.............................................................................................38
8 Common Provisioning Groups....................................................................39
Overview..............................................................................................................................39
Precautions and Planning.........................................................................................................39
Growth Increments, Warnings, and Limits..............................................................................39
Growth Increment..............................................................................................................40
Growth Warning...............................................................................................................40
Growth Limit......................................................................................................................40
System Guidelines for Creating CPGs........................................................................................41
Volume Types Associated with CPGs.........................................................................................41
9 Virtual Volumes........................................................................................42
Overview..............................................................................................................................42
Virtual Volume Types...............................................................................................................42
Administrative Volumes.......................................................................................................43
Fully-provisioned Virtual Volumes..........................................................................................43
Thinly Provisioned Virtual Volumes........................................................................................43
TPVV Warnings and Limits..............................................................................................44
Virtual Volume Online Conversion.............................................................................................45
Physical Copies......................................................................................................................45
Virtual Copy Snapshots...........................................................................................................46
Virtual Copy Snapshot Relationships.....................................................................................46
Copy-on-Write Function..................................................................................................47
Copy-of and Parent Relationships....................................................................................48
Exporting Virtual Volumes........................................................................................................48
VLUN Templates and Active VLUNs......................................................................................49
VLUN Template Types.........................................................................................................49
Host Sees.....................................................................................................................49
Host Set.......................................................................................................................49
Port Presents.................................................................................................................49
Matched Set.................................................................................................................50
10 Reclaiming Unused Space........................................................................51
Overview..............................................................................................................................51
Reclaiming Unmapped Logical Disk Space from CPGs.................................................................51
Reclaiming Unmapped Logical Disk Space from Volumes.............................................................52
Automatically Reclaiming Unused Snapshot Space from Volumes..................................................52
Manually Reclaiming Unused Snapshot Space from Volumes........................................................52
Deleted Volume Snapshot Space..............................................................................................52
Logical Disks and Chunklet Initialization....................................................................................52
4 Contents