Promise Technology 2-Year Extended Warranty for VessR2000 RAID Head - Manual (Page 599)

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Vess R2000 Series Product Manual Promise Technologies
RAID 1E
A RAID 1E source logical drive can migrate to the following target logical drives:
Target Requirements
RAID 0 None.
RAID 1E Add physical drives.
RAID 5
3 physical drives minimum, 32 maximum.
RAID 1E must have less than 32 physical drives.
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.