A stripe depth of 32 KB has been assigned to a five-disk RAID 5 set. What is the stripe size?

A.
32KB

B.
128KB

C.
160 KB

D.
192 KB

Explanation:

RAID Technique – Striping
Strip size (also called stripe depth) describes the number of blocks in a strip, and is the maximum
amount of data that can be written to or read from a single disk in the set, assuming that the
accessed data starts at the beginning of the strip. All strips in a stripe have the same number of
blocks. Having a smaller strip size means that the data is broken into smaller pieces while spread
across the disks.
Stripe size is a multiple of strip size by the number of data disks in the RAID set. For example, in a
five disk striped RAID set with a strip size of 64KB, the stripe size is 320 KB (64KB x 5).
Stripe width refers to the number of data strips in a stripe. Striped RAID does not provide any data
protection unless parity or mirroring is used.
For parity RAID, the stripe size calculation does not include the parity strip. For example in a five
(4 + 1) disk parity RAID set with a strip size of 64 KB, the stripe size will be 256 KB (64 KB x 4).
Calculation
RAID5 = 1x Parity
5 Disk RAID-5 Set = 4 Data + 1 Parity
Stripe Size = 32KB * 5 = 160KB