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ISRO CSE 2011 | Question: 46

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Which $\textsf{RAID}$ level gives block level striping with double distributed parity?

  1. $\textsf{RAID 10}$
  2. $\textsf{RAID 2}$
  3. $\textsf{RAID 6}$
  4. $\textsf{RAID 5}$

4 Answers

4 4 votes

RAID 1 consists of an exact copy of a set of data on two or more disks

RAID 2 stripes data at the bit level, and uses a hamming code for error correction.

RAID 3 consists of byte-level striping with a dedicated parity disk.

RAID 4 consists of block-level striping with a dedicated  parity disk.

RAID 5 consists of block-level striping with distributed parity.

RAID 6 uses block level striping with two parity blocks distributed across all disks.

0 0 votes
RAID 0: Disk Striping or non-redundant striping
RAID 1: Disk Mirroring
RAID 2: Memory style error correcting codes
RAID 3: Bit interleaved parity
RAID 4: Block interleaved parity
RAID 5: Block interleaved distributed parity
RAID 6: P+Q redundancy
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