HP 3PAR Operating System Software - Manual (Page 465)

2. Click Tune System in the Common Actions panel.
The Tune System wizard appears.
3. Select the system you want to tune from the System list.
4. Select the Tune CPGs radio button.
5. Enter a value for the Volume Allocation Imbalance Threshold percentage.
6. Select at least one CPG. (For information on selecting more than one item, refer to “Selecting
Multiple Items” (page 507) .
7. Enter a value for the Maximum Simultaneous Tasks allowed.
8. Select the Analyze only checkbox if you want to view an analysis instead of running the tuning
task.
9. Click OK.
The results appear in the Task Details pane of the Task tab under Tasks & Schedules. For details
about the Task tab, see
“Tasks Tab” (page 355) .
Tune Physical Disk Chunklets Only
This task is available only on 3.1.2 systems. Its purpose is to rebalance the physical disks at the
chunklet level in an attempt to balance usage between existing and newly added physical disks.
Tune Physical Disk Chunklets Only 465