RAID

Question 1

an organization of disks that uses an array of small and inexpensive disks so as to increase both performance and reliability

Answer 1

Redundant array of inexpensive disks (RAID)

Question 2

No redundancy, widely used

Answer 2

RAID0

Question 3

Mirroring, EMC, HP(tandem),IBM

Answer 3

RAID1

Question 4

Error detection and correction code, unused

Answer 4

RAID2

Question 5

bit interleaved parity, storage concepts

Answer 5

RAID3

Question 6

block interleaving parity, network appliance

Answer 6

RAID4

Question 7

distributed block interleaved parity, widely used

Answer 7

RAID5

Question 8

P+Q redundancy, recently popular

Answer 8

RAID6

Question 9

allocation of logically sequential blocks to separate disks to allow higher performance than a single disk can deliver

Answer 9

striping

Question 10

most expensive RAID solution; writing identical data to multiple disks to increase data availability

Answer 10

mirroring

Question 11

the group of data disks or blocks that share a common check disk or block

Answer 11

protection group

Question 12

replacing a hardware component while the system is running

Answer 12

hot swapping

Question 13

reserve hardware resources that can immediately take the place of a failed component

Answer 13

standby spares