A server technician is deploying a server with eight hard drives.
The server specifications call for a RAID configuration that can handle up to two drive failures but also allow for the least amount of drive space lost to RAID overhead.
Which of the following RAID levels should the technician configure for this drive array?
A.
RAID 0 B.
RAID 5 C.
RAID 6 D.
RAID 10
C.
Reference: https://www.booleanworld.com/raid-levels-explained/
A server technician is deploying a server with eight hard drives.
The server specifications call for a RAID configuration that can handle up to two drive failures but also allow for the least amount of drive space lost to RAID overhead.
Which of the following RAID levels should the technician configure for this drive array?
A.
RAID 0
B.
RAID 5
C.
RAID 6
D.
RAID 10
C.
https://www.booleanworld.com/raid-levels-explained/Based on the requirements of the server specifications, the RAID configuration needs to meet two criteria:
Handle up to two drive failures: This means that the RAID level needs to have redundancy to allow for at least two drives to fail without losing data.
Least amount of drive space lost to RAID overhead: RAID overhead refers to the additional space required to store parity information and other metadata that is necessary for the RAID configuration. To minimize the amount of drive space lost to RAID overhead, the RAID level needs to have a low overhead.
Given these requirements, the most appropriate RAID level for this drive array is RAID 6.
RAID 0 provides no redundancy and would not be able to handle any drive failures without data loss.
RAID 5 provides redundancy by using parity information to reconstruct data in the event of a drive failure. However, it can only handle one drive failure at a time, and the overhead is relatively high, requiring the equivalent of one drive's worth of space for parity information.
RAID 10 (also known as RAID 1+0) provides both redundancy and performance benefits by mirroring data across multiple sets of drives and striping data across those sets. It can handle multiple drive failures, but it requires at least four drives and has a higher overhead than RAID 6.
RAID 6 uses two sets of parity information, allowing it to handle up to two drive failures at a time. It has a higher overhead than RAID 5, but it is still relatively low, requiring the equivalent of two drives' worth of space for parity information. Therefore, RAID 6 is the best choice for this scenario, as it meets both criteria for the RAID configuration.