70-246 · Question #18
For a typical DPM deployment there is a recommended RAID configuration. This configuration provides an effective compromise between capacity, cost, reliability, and performance. What RAID…
The correct answer is B. 5. RAID 5 (Answer B) is Microsoft's recommended configuration for System Center Data Protection Manager (DPM) storage pools because it provides the best overall balance across four key factors: capacity (only one disk's worth of space is lost to parity, unlike RAID 1 or RAID 10…
Question
For a typical DPM deployment there is a recommended RAID configuration. This configuration provides an effective compromise between capacity, cost, reliability, and performance. What RAID configuration is this?
Options
- A1
- B5
- C0
- D10
How the community answered
(45 responses)- A4% (2)
- B91% (41)
- C2% (1)
- D2% (1)
Explanation
RAID 5 (Answer B) is Microsoft's recommended configuration for System Center Data Protection Manager (DPM) storage pools because it provides the best overall balance across four key factors: capacity (only one disk's worth of space is lost to parity, unlike RAID 1 or RAID 10 which sacrifice 50%), cost (fewer disks needed than mirrored configurations), reliability (can survive a single disk failure and continue operating), and performance (good sequential read speeds suitable for backup and restore workloads). RAID 0 (C) offers no fault tolerance. RAID 1 (A) is expensive and wastes capacity. RAID 10 (D) offers excellent performance and redundancy but at a high cost and with 50% storage overhead, making it disproportionate for typical DPM backup storage needs.
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