MSI PT880 User Guide - Page 80

VIA VT8237 Serial ATA RAID

Page 80 highlights

VIA VT8237 Serial ATA RAID RAID 0 (Striping) RAID 0 reads and writes sectors of data interleaved between 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. The striping block size can be set from 4KB to 64KB. RAID 0 does not support fault tolerance. RAID 1 (Mirroring) 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. Under a RAID 1 setup, an extra drive called the .spare drive. can be attached. Such a drive will be activated to replace a failed drive that is part of a mirrored array. Due to the fault tolerance, if any RAID 1 drive fails, data access will not be affected as long as there are other working drives in the array. B-3

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VIA VT8237 Serial ATA RAID
B-3
RAID 0 (Striping)
RAID 0 reads and writes sectors of data interleaved between 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. The
striping block size can be set from 4KB to 64KB. RAID 0 does not support fault
tolerance.
RAID 1 (Mirroring)
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. Under a RAID 1 setup, an
extra drive called the .spare drive. can be attached. Such a drive will be activated to
replace a failed drive that is part of a mirrored array. Due to the fault tolerance, if any
RAID 1 drive fails, data access will not be affected as long as there are other working
drives in the array.