4-Port SATA3 RAID/HyperDuo PCIe(x2) Card
4
5.4 Mirroring (RAID 1)
Writes duplicate data on to a pair of drives while reads are performed
in parallel. The RAID controller performs reads using advanced data
handling techniques that distribute the workload in a more efficient
manner than using a single drive. When a read request is made, the
RAID controller selects the drive positioned closest to the requested
data, then looks to the “idle” drive to perform the next read access. If
one of the mirrored drives suffers a mechanical or did not respond,
the remaining drive will continue to function.
5.5 Striping/Mirroring (RAID 0+1, or RAID 10)
A combination of both above array types. It can increase
performance by reading and writing data in parallel while
protecting data with duplication. With a four-drive disk array,
Write data Streams
… ….. 4, 3, 2, 1
1
3
:
:
2
4
:
:
Read data Streams
….. 4, 3, 2, 1
Stripe member 1
Stripe member 2
Write data Streams
… ….. 4, 3, 2, 1
1
2
3
4
1
2
3
4
Read data Streams
….. 4, 3, 2, 1
Mirror member 1 (Original)
Mirror member 2
To Next Page
Loading...