User's Manual

See the following:
l "Organizing Data Storage for Availability and Performance"
l "Comparing RAID Level and Concatenation Performance"
l "Controller-supported RAID Levels"
l "Number of Physical Disks per Virtual Disk"
l "Maximum Number of Virtual Disks per Controller"

RAID Level 60 (Striping over RAID 6 sets)
RAID 60 is striping over more than one span of physical disks that are configured as a RAID 6. For example, a RAID 6 disk group that is implemented with four
physical disks and then continues on with a disk group of four more physical disks would be a RAID 60.
Figure 3-7. RAID 60

RAID 60 Characteristics:
l Groups n*s disks as one large virtual disk with a capacity of s*(n-2) disks, where s is the number of spans and n is the number of disks within each
span.
l Redundant information (parity) is alternately stored on all disks of each RAID 6 span.
l Better read performance, but slower write performance.
l Increased redundancy provides greater data protection than a RAID 50.
l Requires proportionally as much parity information as RAID 6.
l Two disks per span are required for parity. RAID 60 is more expensive in terms of disk space.

Related Information:
See the following:
l "Organizing Data Storage for Availability and Performance"
l "Comparing RAID Level and Concatenation Performance"
l "Controller-supported RAID Levels"
l "Number of Physical Disks per Virtual Disk"
l "Maximum Number of Virtual Disks per Controller"

RAID Level 10 (Striping over mirror sets)
The RAB considers RAID Level 10 to be an implementation of RAID level 1. RAID 10 combines mirrored physical disks (RAID 1) with data striping (RAID 0). With