Chapter 4: Management with WebPAM PROe
125
To start Media Patrol:
1. Click the Subsystem icon in Tree View.
2. Click the Disk Arrays icon.
3. Click the Disk Array icon.
4. From the dropdown menu the Background Activities tab, choose Start Media
Patrol.
5. Click the Start button.
Running PDM on a Disk Array
Predictive Data Migration (PDM) migrates data from the suspect physical drive to
a spare physical drive, similar to Rebuilding. But unlike Rebuilding, PDM acts
before the disk drive fails and your Logical Drive goes Critical.
See “Predictive Data Migration (PDM)” on page 272.
To start PDM:
1. Click the Subsystem icon in Tree View.
2. Click the Disk Arrays icon.
3. Click the Disk Array icon.
4. Click the Background Activities tab in Management View.
5. From the dropdown menu the Background Activities tab, choose Start PDM.
6. In the next screen, choose the Source and Target physical drives.
The suspect physical drive is the source.
The replacement physical drive is the target. The available drives are either
HDD or SSD, depending on the type of drives in the array.
7. Click the Start button.
Transitioning a Disk Array
Transition is the process of replacing a revertible spare drive that is currently part
of a disk array with an unconfigured physical drive or a non-revertible spare. The
revertible spare drive returns to its original status. For more information, see
“Transition” on page 273.
In order to run the Transition function:
• The spare drive must be Revertible.
• You must have an unconfigured physical drive of the same or larger capacity,
and the same type, HDD or SSD, to replace the spare drive.
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