A systems engineer has been presented with storage performance and redundancy requirements
for a new system to be built for the company. The storage solution must be designed to support
the highest performance and must also be able to support more than one drive failure. Which of
the following should the engineer choose to meet these requirements?
A.
A mirrored striped array with parity
B.
A mirrored mirror array
C.
A striped array
D.
A striped array with parity
the answer should be D Please check
The question specifies “highest performance”, striping with parity presents with a significant performance lass compared to mirroring. Mirroring offers the highest performance.
Calculation for parity doesn’t affect so significantly. An advantage of striping with RAID5 is more considerable.
I believe the answer is D.
B. is clearly not the answer. RAID 1 consumes a lot of resources and that makes it slow compared to RAID 5. So D. is the answer.
The answer is A) mirrored striped array with parity to support the loss of more than one drive of a time.
D means RAID 5, which supports the loss of a single disk. The question refers to multiple disk loss, which would be RAID 6. A is a mirrored RAID 5 (aka RAID 15)and I believe to be the right answer