A hardware compatibility list recommends striping with double parity as storage for an application.
In a test environment, a technician realizes that a different RAID level can be used to compensate for a limited number of available disks.
Which of the following is the closest RAID level the technician should deploy while minimizing the number of disks and maintaining fault tolerance?
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A. B. C. D.C.
The hardware compatibility list recommends using striping with double parity, which is RAID level 6. However, the technician realizes that a different RAID level can be used to compensate for a limited number of available disks.
In RAID 6, data is striped across multiple drives, and two parity blocks are calculated and distributed across all the drives. This allows for the failure of up to two drives without data loss. However, this requires a minimum of four drives.
Of the given RAID levels, RAID 10 is the closest to RAID 6 in terms of fault tolerance, as it provides both mirroring and striping. In RAID 10, data is mirrored across two sets of drives, and then the two sets are striped. This provides fault tolerance for up to one drive failure in each mirrored set. RAID 10 requires a minimum of four drives, but for a given number of disks, it provides less storage capacity than RAID 6.
RAID 0 provides striping without any redundancy, meaning that the failure of any single drive will result in the loss of all data. RAID 1 provides mirroring without striping, meaning that it requires at least two drives, and provides fault tolerance for up to one drive failure. RAID 5 provides striping with distributed parity, but only provides fault tolerance for a single drive failure. RAID 5 requires a minimum of three drives.
Therefore, of the given options, RAID 10 is the closest RAID level the technician should deploy while minimizing the number of disks and maintaining fault tolerance.