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Dane-Elec. All rights reserved 2010
my-Ditto User Manual
distributing data among the drives. The device supports JBOD, RAID 0, RAID 1, and
Standalone.
JBOD
JBOD is an acronym for Just a Bunch Of Drives, and is used to refer to two distinct concepts:
Concatenation, where all the physical disks are concatenated and presented as a
single disk.
Note that does not provide data redundancy.
RAID 0
RAID 0 provides data striping, which spreads out blocks of data over all drives, but does not
provide data redundancy.
Although performance is improved, the lack of fault tolerance means that if one drive fails,
all data in the array will be lost.
RAID 1
RAID 1 provides mirroring over multiple disks, with the same read/write speed of a single
disk. A RAID 1 array can only be as large as its smallest member disk.
Because the data is stored on multiple disks,
RAID 1 provides fault tolerance and protection, in addition to performance advantages.