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RAID x0
RAID level-x0 refers to RAID level 00, 100, 30, 50 and 60. RAID x0 is a combination multiple RAID x volume sets with
RAID 0 (striping). Striping helps to increase capacity and performance without adding disks to each RAID x array. The
operating system uses the spanned volume in the same way as a regular volume. Up to one drive in each
sub-volume (RAID 3 or 5) may fail without loss of data. Up to two drives in each sub-volume (RAID 6) may fail
without loss of data. RAID level x0 allows more physical drives in an array. The benefits of doing so are larger volume
sets, increased performance, and increased reliability.
The following illustration is an example of a RAID level x0 logical drive.
Important: RAID level 00, 100, 30, 50 and 60 can support up to eight RAID set. If volume is RAID level 00, 100, 30,
50, or 60, you cannot change the volume to another RAID level. If volume is RAID level 0, 1, 10(1E), 3, 5, or 6, you
cannot change the volume to RAID level 00, 100, 30, 50, or 60.
JBOD
(Just a Bunch Of Disks) A group of hard disks in a RAID box are not set up as any type of RAID configuration. All
drives are available to the operating system as an individual disk. JBOD does not provide data redundancy.
Single Disk (Pass-Through Disk)
Pass through disk refers to a drive that is not controlled by the RAID firmware and thus can not be a part of a RAID
volume. The drive is available to the operating system as an individual disk.
Summary of RAID Levels
12Gb/s SAS RAID controller supports RAID Level 0, 1, 10(1E), 3, 5, 6, 30, 50 and 60. The following table provides a
summary of RAID levels.
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