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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