Advantages :
High
Read data transaction
rate Medium Write data
transaction rate,
same basic idea as RAID
5, but creates two
separate parity sets
slower performance improved
redundancy. Low ratio of ECC
(Parity) disks to data
disks means high
efficiency Good aggregate transfer
rate Most versatile RAID
level with highest
redundancy. |
Disadvantages :
Disk failure has a
medium impact on
throughput. Most complex controller
design. Difficult to rebuild in
the event of a disk
failure (as compared to
RAID level 1) Individual block data
transfer rate still
better than
single disk |