Promise Technology VTrak 15110 - Manual (Page 104)

VTrak 15110 User Manual
96
• Logical Drive Health – Logical drives under this controller.
• Physical Drive Health – Physical drives under this controller.
• Enclosure Health – Temperature, voltage, battery condition.
Functional indicates normal operation. Problems are described in red type.
Click on the Logical Drive Summary icon, Physical Drive icon or
Enclosure icon for more specific information about any problems.
MP/PDM Settings
Media Patrol is a routine maintenance procedure that checks the magnetic media
on each disk drive. Media Patrol checks physical drives assigned to non-
redundant (RAID 0) disk arrays, spare and unassigned drives.
Unlike Synchronization and Redundancy Check, Media Patrol is concerned with
the condition of the media itself, not the data recorded on the media. If Media
Patrol encounters a critical error, it triggers PDM if PDM is enabled.
Predictive Data Migration (PDM) is the migration of data from the suspect disk
drive to a spare disk drive, similar to Rebuilding a Logical Drive. But unlike
Rebuilding, PDM constantly monitors your disk drives and automatically copies
your data to a spare disk drive BEFORE the disk drive fails and your Logical
Drive goes Critical.
The VTrak–MP/PDM Settings tab enables you to make settings on Media Patrol
and PDM. These features apply to VTrak only.
To enable Media Patrol or PDM:
1. Click the Subsystem icon.
2. Click on the VTrak icon.
3. Click on the MP/PDM Settings tab.
4. Check the Enable Media Patrol checkbox to enable Media Patrol.
Uncheck the box to disable.
5. Check the Enable PDM checkbox to enable PDM.
Uncheck the box to disable.
6. Click the Submit button when you are done.