Promise Technology VessRAID 1720i

Chapter 8: Technology Background
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RAID 5
A RAID 5 Source logical drive can migrate to the following Target logical drives:
RAID 6
A RAID 6 Source logical drive can migrate to the following Target logical drives:
Target Requirements
RAID 0 None.
RAID 1E None.
RAID 5 Add physical drives. 16 maximum.
RAID 6 4 physical drives minimum, 16 maximum.
If existing physical drives have no unused space, add 1 or
more physical drives.
RAID 10 4 physical drives minimum.
Even number of physical drives.
If existing physical drives have no unused space, add 1 or
more physical drives.
RAID 50 6 physical drives minimum, 32 per axle maximum.
If existing physical drives have no unused space, add 1 or
more physical drives.
RAID 60 8 physical drives minimum, 32 per axle maximum.
If existing physical drives have no unused space, add 1 or
more physical drives.
Target Requirements
RAID 6 Add physical drives. 16 maximum.
RAID 60 8 physical drives minimum, 32 per axle maximum.
If existing physical drives have no unused space, add 1 or
more physical drives.