ShareCenter Pro User Manual
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Migration:
The term "Migration" means either or both of the following
Change the RAID level of a logical drive
Expand the storage capacity of a logical drive
Before you begin a migration, examine your current disk
array to determine whether:
The physical drives in your array can support the target
RAID level
There is sufficient capacity to accommodate the target
logical drive size
If you need to add capacity to the array, be sure there are
unassigned physical drives installed in you RAID system
before you begin the migration.
Supported RAID level
Target
Source
RAID0
RAID1
RAID5
RAID6
RAID10
RAID0
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●
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RAID1
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●
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RAID5
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●
●
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RAID6
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RAID10
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PDM:
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 following actions trigger PDM:
A disk drive with unhealthy status (see below)
Media Patrol finds a disk critical error
You initiate PDM manually
