2 virtual volume analysis, Virtual volume analysis – HP 3PAR Policy Manager Software User Manual
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4.11
Understanding the Policy Advisor Analysis Process
3PAR Policy Advisor User’s Guide
4.6.1.2 Summary Report of Physical Disks in the System
The following example shows the top level overview of PDs on a system:
./PolicyAdvisor.tcl
---------------------------
PD Analysis
---------------------------
------FC-------
-----------------Description------------------ 15K 10K 10K+15K NL All
Number of Available PDs with free chunklets 0 19 19 0 19
Number of Available PDs with no free chunklets 0 0 0 0 0
---------------------------------------------------------------------
Total Number of Available PDs 0 19 19 0 19
---------------------------------------------------------------------
Maximum number free chunklets in a PD - 394 394 - 394
Minimum number free chunklets in a PD
___
- 19
___ __
19
_
-
_
19
4.6.2 Virtual Volume Analysis
The analysis of virtual volumes that draw space from CPGs has different parameters than the
analysis of virtual volumes that draw space directly from LDs. For more information about
virtual volume analysis requirements and restrictions, see
page 4.2. For detailed information about the InForm OS CLI commands, see the InForm OS
Command Line Interface Reference and InForm CLI Help.
4.6.2.1 Virtual Volumes Created from Logical Disks
Virtual volumes created directly from LDs are virtual volumes created with the InForm
createaldvv
CLI command, or the InForm Management Console Fully Provisioned from
PDs option. The analysis of virtual volumes created directly from LDs is performed at the
virtual volume level and the underlying LDs are not analyzed. When virtual volumes don't
match the specified parameters, tuning operations are recommended for the unmatched
virtual volumes.
The following Policy Advisor script options can be used to generate tuning suggestions for
virtual volumes created directly from LDs:
NOTE: Disks in a failed or degraded state do not appear in PD analysis reports
because failed and degraded disks are not available for tuning.