Computer Hardware User Manual

Chapter 4: Management with WebPAM PROe
51
• Medium allocates a balance of system resources to the function and
data read/write operations.
• High allocates more system resources to the function and fewer to data
read/write operations.
5. Set the Reassigned Block threshold.
When an error occurs in a physical drive, the directions to the block
containing error are reassigned. When the number of reassigned blocks
exceeds the threshold, PDM is triggered.
6. Set the Error Block threshold.
When an error occurs in the data or the physical media in a disk drive, the
block is marked and added to the block error count. When the number of
error blocks exceeds the threshold, PDM is triggered.
7. Check the boxes to enable Media Patrol.
For more information, see “Media Patrol” on page 198.
8. Check the boxes to enable Auto Rebuild.
Auto Rebuild enables rebuilding of a disk array when a suitable hot spare
drive is available. For more information, see “Hot Spare Drive(s)” on
page 194.
9. When you are done, click the Submit button.
Scheduler
The Subsystem–Scheduler tab enables you to view and assign scheduled
background activities on a specific subsystem.
Scheduled activities include:
• Media Patrol. See “Physical Drive Media Patrol” on page 91
• Redundancy Check. See “Logical Drive Redundancy Check” on page 109
• Battery Reconditioning. See “Battery Recondition” on page 84
• Spare Drive Check. See “Spare Check – All Spare Drives” on page 114
View Scheduled Activities
To view scheduled activities for this subsystem:
1. Click on the Subsystem icon Tree View.
2. Click on the Scheduler tab in Management View.
Schedule an Activity
To set a scheduled activity for this subsystem:
1. Click on the Subsystem icon Tree View.
2. Click on the Scheduler tab in Management View.