HP 3PAR InForm OS 3.1.1 Concepts Guide

6 Ports and Hosts........................................................................................28
Overview..............................................................................................................................28
About Ports............................................................................................................................28
Fibre Channel Ports............................................................................................................28
iSCSI Ports........................................................................................................................28
Gigabit Ethernet Ports.........................................................................................................28
Port Location Formats..............................................................................................................29
Port Target, Initiator, and Peer Modes........................................................................................29
Active and Inactive Hosts.........................................................................................................30
Adding and Removing Hosts....................................................................................................30
Host Personas.........................................................................................................................30
Legacy Host Personas.........................................................................................................31
The Host Explorer Software Agent.............................................................................................31
7 Chunklets................................................................................................33
Overview..............................................................................................................................33
Physical Disk Chunklets............................................................................................................33
Spare Chunklets.....................................................................................................................33
8 Logical Disks............................................................................................35
Overview..............................................................................................................................35
Logical Disks and Common Provisioning Groups.........................................................................35
Logical Disk Types..................................................................................................................35
RAID Types............................................................................................................................36
RAID 0.............................................................................................................................36
RAID 1 and 10..................................................................................................................36
RAID 5 and 50..................................................................................................................37
RAID Multi-Parity................................................................................................................38
Logical Disk Size and RAID Types.............................................................................................39
9 Common Provisioning Groups....................................................................40
Overview..............................................................................................................................40
Precautions and Planning.........................................................................................................40
Growth Increments, Warnings, and Limits..............................................................................40
Growth Increment..............................................................................................................41
Growth Warning...............................................................................................................41
Growth Limit......................................................................................................................41
System Guidelines for Creating CPGs........................................................................................42
Volume Types Associated with CPGs.........................................................................................42
10 Virtual Volumes......................................................................................43
Overview..............................................................................................................................53
Virtual Volume Types...............................................................................................................43
Administrative Volumes.......................................................................................................44
Fully-Provisioned Virtual Volumes..........................................................................................44
Thinly-Provisioned Virtual Volumes........................................................................................44
TPVV Warnings and Limits..............................................................................................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........................................................................................................49
VLUN Templates and Active VLUNs......................................................................................49
VLUN Template Types.........................................................................................................49
Host Sees.....................................................................................................................50
Host Set.......................................................................................................................50
Contents 7