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Question 191 - SK0-005 discussion

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A junior administrator needs to configure a single RAID 5 volume out of four 200GB drives attached to the server using the maximum possible capacity. Upon completion, the server reports that all drives were used, and the approximate volume size is 400GB. Which of the following BEST describes the result of this configuration?

A.
RAID 0 was configured by mistake.
Answers
A.
RAID 0 was configured by mistake.
B.
RAID 5 was configured properly.
Answers
B.
RAID 5 was configured properly.
C.
JBOD was configured by mistake.
Answers
C.
JBOD was configured by mistake.
D.
RAID 10 was configured by mistake.
Answers
D.
RAID 10 was configured by mistake.
Suggested answer: B

Explanation:

The output of the configuration shows that RAID 5 was configured properly using four 200GB drives. The approximate volume size of 400GB is correct, since RAID 5 uses one disk for parity and the rest for data. Therefore, the usable storage capacity is three-fourths of the total capacity, which is 600GB out of 800GB. The other RAID levels given would result in different volume sizes: RAID 0 would result in 800GB, RAID 1 would result in 200GB, and JBOD would result in an error since it does not support multiple drives in a single volume. Reference:

https://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_5

asked 02/10/2024
Jim Balkwill
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