A new server has two drives and a RAID controller.
Which of the following is an option for configuring the storage on this server?
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A. B. C. D.A.
When configuring the storage on a server with two drives and a RAID controller, there are a few different options available, each with their own advantages and disadvantages.
RAID (Redundant Array of Independent Disks) is a method of combining multiple physical disk drives into one or more logical units for the purposes of data redundancy, performance improvement, or both.
Here are the details of the RAID options mentioned in the question:
A. RAID 0: Also known as "striping," this method splits data across two or more disks, which can increase read/write speeds. However, there is no data redundancy, so if one drive fails, all data is lost. This is not recommended for critical data.
B. RAID 5: This method uses three or more disks, with parity information distributed across all drives. This provides both data redundancy (if one drive fails, data can be reconstructed from the parity information) and improved read/write performance. However, RAID 5 can be slow for write operations because the parity information must be calculated and written to disk.
C. RAID 6: This is similar to RAID 5, but uses two sets of parity information, allowing for two drives to fail simultaneously without data loss. This method requires a minimum of four drives, and can be slower for write operations than RAID 5.
D. RAID 10: Also known as RAID 1+0, this method combines RAID 1 (mirroring) and RAID 0 (striping) for both data redundancy and improved read/write performance. It requires a minimum of four drives, and can tolerate one drive failure in each mirrored set.
In summary, the best RAID option for configuring the storage on this server depends on the specific needs and priorities of the organization. RAID 0 would provide the highest performance, but with no data redundancy. RAID 5 provides both redundancy and performance, but can be slow for write operations. RAID 6 provides even more redundancy but can be slower for write operations than RAID 5. RAID 10 provides both redundancy and performance, but requires at least four drives.