Dell POWEREDGE RAID H700 - Page 32

32 Storage Controller Features
Table 3-2. RAID Level Migration
Source
RAID
Level
Target
RAID
Level
Required
Number of
Physical Disks
(Beginning)
Number of
Physical
Disks (End)
Capacity
Expansion
Possible
Description
RAID 0RAID 01 2 or more Yes Increases capacity by
adding disks
RAID 0RAID 11 2 No Converts
non-redundant
virtual disk into a
mirrored virtual disk
by adding one disk.
RAID 0 RAID 5 1 or more 3 or more Yes At least one disk
needs to be added for
distributed parity data.
RAID 0 RAID 6 1 or more 4 or more Yes At least two disks need
to be added for dual
distributed parity data.
RAID 1RAID 02 2 or more Yes Removes redundancy
while increasing
capacity.
RAID 1 RAID 5 2 3 or more Yes Maintains redundancy
while doubling
capacity.
RAID 1RAID 62 4 or more Yes Two disks required to
be added for
distributed parity data.
RAID 5 RAID 0 3 or more 3 or more Yes Converts to a
non-redundant virtual
disk and reclaims
disk space used for
distributed parity data.
RAID 5RAID 53 4 or more Yes Increases capacity by
adding disks
PERC7.2_UG.book Page 32 Thursday, March 3, 2011 2:14 PM