User manual

RAID 10 (1+0)
In RAID 1+0, the data is first mirrored and then striped. Under this
RAID Mode, it provides another way to achieve higher
performance and data security, while increasing complexity.
It is usually called “a mirror of stripes.” RAID 1+0 mode provides
excellent data protection and fault tolerance. The speed of
operation is fast in comparison to other RAID modes (except RAID
0).
The key difference between RAID 1+0 and RAID 1+0 is that RAID 1+0 creates a striped set from
a series of mirrored drives. In a failed disk situation, RAID 1+0 performs better because all the
remaining disks can continue to be used. The array can sustain multiple drive losses as long as
none of the mirror set loses all of its drives.
Under the RAID 1+0 Mode, 4 HDDs in an array are required. However, the storage
capacity is only 2 HDDs and is limited to size of the smallest HDD.
In RAID 10 (1+0) mode, if any 2 of the 4 disks fail at the same time, the data can still be
reconstructed when they are replaced with new HDDs. However, if both failed disks
are in either HDD slots 2 & 3 or 1 & 4, the data will be lost.
BIGROC 5C – 4Bay RAID - 1U Rack Mount System - User Manual Page | 23