Hp 3PAR Policy Manager Software Bedienungsanleitung PDF herunterladen (Seite 37)

4.21

Troubleshooting the Policy Advisor

3PAR Policy Advisor User’s Guide

If a virtual volume cannot be tuned, the reason is displayed. The virtual volumes matching the

analysis criteria are displayed:

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Non-cpg based VVs meeting tuning criteria

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Analyzing possible tune commands

A total of 1 Virtual Volumes (VVs) will be analyzed

Name -----------Criteria---------- -SkipReason- -----------TuneCmd---------

aldvv1 {Volume RAID=r1 required=r5} {Volume ssz=2 required=4} {PD usage=16/32 (50%/threshold 90%) of FC:10}

tunealdvv -t r5 -ssz 4 -ha mag -p -devtype FC -f aldvv1

The analysis is summarized. The suggested CLI commands you should run are displayed:

---------------------------

Suggested tune command list

---------------------------

tunealdvv -t r5 -ssz 4 -ha mag -p -devtype FC -f aldvv1

Total of 1 tune command to run

For a complete list of options available for the

tunevv or tunealdvv command, see the

InForm OS Command Line Interface Reference and InForm CLI Help.

4.9 Troubleshooting the Policy Advisor

■ If a large number of tuning operations are suggested, it might be beneficial to run some of

the tuning operations, let them complete, and then re-run Policy Advisor. It is possible that

changes to the system configuration made by earlier tuning operations might affect the

later tuning operations.

■ If suggested tuning operations start to fail, stop the Policy Advisor script and then re-run it.

Most likely, something on the system has changed since the script started. Stop and re-run

the script to see if new tuning operations are suggested with the current configuration.

■ The script always starts with the smallest virtual volumes first to attempt to free space on

more heavily used physical disks. This gives tuning operations on larger virtual volumes a

better chance of improving the layout. If there is very little space on the system, space

needs to be freed up before Policy Advisor will be effective.

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Hp 3PAR Policy Manager Software Bedienungsanleitung Seite 37