Dell 6 series User Manual page 35

Table 3-2. RAID Level Migration (continued)
Source Target
RAID RAID
Level Level
RAID 5 RAID 0 3 or more
RAID 5 RAID 6 3 or more
RAID 6 RAID 0 4 or more
RAID 6 RAID 5 4 or more
NOTE:
The total number of physical disks in a disk group cannot exceed 32.
NOTE:
You cannot perform RAID level migration and expansion on RAID
levels 10, 50, and 60.
Required Number of
Number of Physical
Physical Disks
Disks (End)
(Beginning)
2 or more Yes
4 or more Yes
2 or more Yes
3 or more Yes
Capacity Description
Expansion
Possible
Converting to a non-redundant
virtual disk and reclaiming disk
space used for distributed
parity data.
At least one drive needs to be
added for dual distributed
parity data.
Converting to a non-redundant
virtual disk and reclaiming disk
space used for distributed
parity data.
Removing one set of parity data
and reclaiming disk space used
for it.
About PERC 6 and CERC 6/i Controllers
35