Technical information

32 EqualLogic Configuration Guide | Version 15.2 | August 2014
Table 13 shows the RAID set relationship for each RAID type in a 14-drive configuration.
Table 13 EqualLogic PS Series array RAID types and RAID set relationships
Raid policy
Spare disks
Raid set relationship
Best practice
RAID 6
1 Spare Disk
(11+2),
(6+2 HDD, 3+2 SSD)*
Yes
RAID 10
2 Spare Disks
(6+6)
Yes
RAID 50
2 Spare Disks
(5+1, 5+1)
For selected
configuration
RAID 5
1 Spare Disk
(12+1)
Not for business critical
data
*Applies to the PS-M4110XS hybrid array configuration.