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GATE CSE 1999 | Question: 2-18, ISRO2008-46

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Raid configurations of the disks are used to provide

  1. Fault-tolerance 

  2. High speed

  3. High data density

  4. (A) & (B)

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  1. Fault tolerance and
  2. High Speed
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RAID 0=IMPROVES DATA TRANSFER RATE.BUT CANT PROVIDE FAULT TOLERENCE

RAID 1 TO 5= PROVIDE TOLERANCE  TO ONE DISC FAILURE

RAID 6=TWO DISC FAILURE
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Answer is D.

RAID, short for redundant array of independent (originally inexpensive) disks is a disk subsystem that stores your data across multiple disks to either increase the performance or provide fault tolerance to your system (some levels provide both).

You can check here for a more information for RAID.

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