Raid Levels - Thecus i Series User Manual

iSCSI Internet Small Computer Systems Interface.
Challenge Handshake Authentication Protocol. An optional
CHAP
security mechanism to control access to an iSCSI storage
system over the iSCSI data ports.
iSNS Internet Storage Name Service.

1.3 RAID levels

Disk striping. RAID 0 needs at least one hard drive.
RAID 0
Disk mirroring over two disks. RAID 1 needs at least two hard
RAID 1
drives.
Extension to RAID 1 level. It has N copies of the disk.
N-way
mirror
Striping with parity on the dedicated disk. RAID 3 needs at
RAID 3
least three hard drives.
Striping with interspersed parity over the member disks. RAID
RAID 5
3 needs at least three hard drives.
2-dimensional parity protection over the member disks. RAID
RAID 6
6 needs at least four hard drives.
Mirroring of the member RAID 0 volumes. RAID 0+1 needs at
RAID 0+1
least four hard drives.
Striping over the member RAID 1 volumes. RAID 10 needs at
RAID 10
least four hard drives.
The abbreviation of "Just a Bunch Of Disks". JBOD needs at
JBOD
least one hard drive.
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