HP 3PAR Policy Manager Software - Manual (Page 39)

3PAR Policy Advisor User’s Guide
A.1
Frequently Asked Questions
A
Frequently Asked Questions
This appendix provides answers to general questions about the 3PAR Policy Advisor script for
Dynamic Optimization.
Can you give me an overview of how Policy Advisor analyzes virtual volumes that
provision space directly from Logical Disks (LDs)?
■ The virtual volume space allocation per Physical Disk (PD) is analyzed to determine how
well the virtual volume is distributed across the disks in the system.
■ Following the PD analysis, Policy Advisor determines if creating a similarly sized virtual
volume provisioned directly from LDs with the same characteristics, like RAID type and set
size, would improve the virtual volume layout at this time.
■ If the number of disks occupied by the current virtual volume is less than the -tunepct
percentage of disks that would potentially be occupied if the tuning operation is
performed, then tuning suggestions are displayed.