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Appendix B: RAID Explained
RAID 0
Disk striping of any number of drives.
Minimum of 2 disks.
RAID 1
Disk mirroring of 2 disks.
N-way
mirroring
Disk Mirroring of N disks.
Choose N number of disks and set as RAID 1 array.
RAID 3
Striping with parity on the dedicated disk.
Minimum of 3 disks.
RAID 5
Striping with interspersed parity over all member disks.
Minimum of 3 disks.
RAID 6
2-dimensional parity protection over all member disks.
Minimum of 4 disks.
RAID 0+1
Mirroring of RAID 0 volumes.
Minimum of 4 disks and array needs to consist of even number of disks.
RAID 10
Striping over RAID 1 volumes.
Minimum of 4 disks and array needs to consist of even number of disks.
RAID 30
Striping over RAID 3 volumes.
Minimum of 6 disks. With 6 disks, two arrays of RAID 3 are striped into one
array as RAID 30.
RAID 50
Striping over RAID 5 volumes.
Minimum of 6 disks. With 6 disks, two arrays of RAID 5 are striped into one
array as RAID 50.
RAID 60
Striping over RAID 6 volumes.
Minimum of 8 disks. With 8 disks, two arrays of RAID 6 are striped into one
array as RAID 60.
JBOD
The abbreviation of “Just a Bunch Of Disks”. JBOD will set the disks as
individual disks.
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