5
67
RAID 0 (Striped)
RAID 0 reads and writes sectors of data interleaved among multiple drives. If any disk
member fails, it affects the entire array. The disk array data capacity is equal to the
number of drive members times the capacity of the smallest member. RAID 0 does
not support fault tolerance.
RAID 1 (Mirror)
RAID 1 writes duplicate data onto a pair of drives and reads both sets of data in
parallel. If one of the mirrored drives suffers a mechanical failure or does not respond,
the remaining drive will continue to function. Due to redundancy, the drive capacity of
the array is the capacity of the smallest drive.
RAID 0+1 (Striped Mirror)
RAID 10 is a combination of striping and mirroring. This conguration provides optimal
speed and reliability, but you need four SATA hard disks.
Comparison Table :
Solution Hard Disks No. Capacity Performance Reliability Application
RAID0 >=2 All Highest Dangerous Look for speed
RAID1 2 50% Read faster Excellent 100% Data backup
RAID0+1 >=4
(Even number)
Smallest
*2
High Excellent Unlimited budget
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