2016-08-05 14:11:39 Posted by Daisy to Computer Instruction
RAID 5 - Block-level data striping with distributed parity. A Good Compromise
RAID 5 stripes data across multiple disks. RAID 5, however, adds a parity check bit to the data. This slightly reduces available disk capacity, but it also means that the RAID array continues to function if a single disk fails. In the event of a disk failure, you simply replace the failed disk and keep going.
The tradeoffs with RAID 5 are a small performance penalty in write operations and a slight decrease in usabable storage space.
|DRIVE 1||DRIVE 2||DRIVE 3|
|Parity A||Data A||Data A|
|Data B||Parity B||Data B|
|Data C||Data C||Parity C|
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