A drive failed on a server that was leveraging a RAID disk configuration. The server administrator would like to rebuild the array so it can withstand a potential multidrive failure in the future. Whi

The correct answer is D. 10. RAID 10 (also written RAID 1+0) combines mirroring and striping. Drives are mirrored in pairs, and those pairs are then striped. This means the array can survive the failure of one drive in each mirrored pair simultaneously - true multi-drive fault tolerance. RAID 0 offers no red

Hardware

Question

A drive failed on a server that was leveraging a RAID disk configuration. The server administrator would like to rebuild the array so it can withstand a potential multidrive failure in the future. Which of the following RAID configurations will the administrator MOST likely select?

Options

How the community answered

(62 responses)

A
8% (5)
B
3% (2)
C
11% (7)
D
77% (48)

Explanation

RAID 10 (also written RAID 1+0) combines mirroring and striping. Drives are mirrored in pairs, and those pairs are then striped. This means the array can survive the failure of one drive in each mirrored pair simultaneously - true multi-drive fault tolerance. RAID 0 offers no redundancy at all. RAID 1 mirrors two drives but is limited to two drives total. RAID 5 uses distributed parity and can only tolerate a single drive failure before data is at risk. RAID 10 is the go-to choice when both performance and multi-drive fault tolerance are required.

Topics

#RAID#Disk configuration#Fault tolerance#Storage

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