A server administrator is deploying a new server that has two hard drives on which to install the OS. Which of the following RAID configurations should be used to provide redundancy for the OS?
RAID 1 Disk Mirroring
This RAID design provides a very high degree of redundancy. All content is written to both disks, and if one disk fails, the other disk has everything. This solution is excellent for mission-critical situations. The downside to mirroring is that drive space is not very efficiently used (if you buy two disks that are 1 TB each, you’ve paid for 2 TB of storage but will only have the effective capacity of 1 TB). RAID 1 requires a minimum of two disks.
The Official CompTIA Server+ Study Guide (Exam SK0-005) page 114.
RAID 1 would be mirroring. RAID 0 striping and therefore no redundancy.
RAIDs 5 & 6 require a minimum 3/4 disks so cannot be the answer here.
https://www.prepressure.com/library/technology/raid
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