Volume Relationship Diagram - Sans Digital iSCSI STORAGE User Manual

RAID 3 Striping with parity on the dedicated disk. RAID 3 needs at least three hard
drives.
RAID 5 Striping with interspersed parity over the member disks. RAID 3 needs at least
three hard drives.
RAID 6 2-dimensional parity protection over the member disks. RAID 6 needs at least
four hard drives.
RAID 0+1 Mirroring of the member RAID 0 volumes. RAID 0+1 needs at least four hard
drives.
RAID 10 Striping over the member RAID 1 volumes. RAID 10 needs at least four hard
drives.
RAID 30 Striping over the member RAID 3 volumes. RAID 30 needs at least six hard
drives.
RAID 50 Striping over the member RAID 5 volumes. RAID 50 needs at least six hard
drives.
RAID 60 Striping over the member RAID 6 volumes. RAID 60 needs at least eight hard
drives.
JBOD The abbreviation of "Just a Bunch Of Disks". JBOD needs at least one hard drive.
1.4

Volume relationship diagram

LUN 1
VD 1
+
PD 1
LUN 2 LUN 3
VD 2 Snap
VD
+
+
RG
PD 2 PD 3
- 8 -
Global CV
DS
RAM
Dedicated
CV