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Running PDM on a Logical Drive
Predictive Data Migration (PDM) is the migration of data from the suspect disk drive to a spare drive,
similar to rebuilding a disk array. But unlike rebuilding, PDM automatically copies your data to a spare
drive before the drive fails and your logical drive goes Critical.
PDM can be triggered automatically by Media Patrol. See "PDM" on page 87. T o run PDM on a
logical drive:
1.
Click on the Background Activities icon.
The list of background activities appears.
2.
Mouse-over PDM and click the Start button.
3.
Choose a Source Physical Drive.
The Source Physical Drive is the drive suspected of possible failure. Source Physical Drives are
identified by the disk array number and their sequence number in the disk array.
4.
Choose a T arget Physical Drive.
The T arget Physical Drive is the replacement drive.
T arget physical drives are identified by their physical drive ID number.
5.
Click the Confirm button.
Run PDM
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Pegasus3 Series
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