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LaCie RAID Technology White Paper
JBOD
A
B
C
D
E
F
G
H
I
J
K
O
L
P
M
N
Disk 1
Disk 2
Disk 3
Disk 4
JBOD
JBOD stands for Just a Bunch of Disks. Each disk in the array, whether part of separate devices or the same
device, mounts on the computer as a separate disk.
LaCie Products with JBOD Mode
Currently, no LaCie products
✦
RAID 0
RAID 1
RAID 3
RAID 3+Spare
RAID 5
RAID 5+Spare
RAID 6
RAID 0+1
RAID 10
Concatenation
JBOD
RAID Selection
How JBOD Capacity Is Calculated
The total capacity of a JBOD array is the sum of
the capacities of each of its disks, or
C = n*d
where:
C = available capacity
n = number of disks
d = disk capacity
For example, in a JBOD array with four drives
each with a capacity of 1000GB, the total ca-
pacity of the array would be 4000GB:
C = (4*1000)
