| RAID Level: |
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53 |
0+1 |
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RAID 3: Parallel transfer with parity  The data block is subdivided
("striped") and written on the data disks. Stripe parity is generated on
Writes, recorded on the parity disk and checked on Reads. RAID Level 3 requires a minimum of 3 drives to implement |
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Characteristics/Advantages Very high Read data transfer
rate Very high Write data transfer rate Disk failure has an insignificant impact on throughput Low ratio of ECC (Parity) disks to data disks means high
efficiency |
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Disadvantages Transaction rate equal to that of
a single disk drive at best (if spindles are synchronized) Controller design is fairly complex Very difficult and resource intensive to do as a "software"
RAID |
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