Which of the following is the MINIMUM number of disks necessary for a RAID 10 array?

The correct answer is C. 4. RAID 10, also known as RAID 1+0, combines striping and mirroring, requiring a minimum of four disks to implement.

Server hardware installation and management

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How the community answered

(45 responses)

A
2% (1)
B
7% (3)
C
87% (39)
D
4% (2)

Why each option

RAID 10, also known as RAID 1+0, combines striping and mirroring, requiring a minimum of four disks to implement.

Two disks are sufficient for RAID 0 (striping) or RAID 1 (mirroring), but not for RAID 10.

Three disks can be used for RAID 5, but not for RAID 10, which requires an even number of disks for mirroring.

C4Correct

RAID 10 (or RAID 1+0) is a nested RAID level that combines RAID 1 (mirroring) with RAID 0 (striping). To achieve this, it requires at least two mirrored pairs, where each pair consists of two disks, resulting in a minimum of four physical disks for the array.

Six disks would certainly work for RAID 10, but the question asks for the minimum number.

Concept tested: RAID 10 configuration, minimum disk requirements

Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/raid-levels

Topics

#RAID 10#RAID levels#disk requirements#storage configuration

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