You need to recommend a RAID level for an MSA 2072 storage array that will ensure best performance and maximum resiliency for your customer. Which RAID level is best?

Question

Options

• AMSA-DP+
• BTriple+ Parity
• CRAID 0
• DRAID 6

• A
  72% (21)
• B
  3% (1)
• C
  7% (2)
• D
  17% (5)

Explanation

MSA-DP+ is HPE's proprietary dual-parity RAID technology purpose-built for the MSA 2072, combining the resiliency of dual-parity protection (survives two simultaneous drive failures) with performance optimizations specifically tuned for that array's architecture - making it the only option that satisfies both requirements simultaneously. RAID 0 is disqualified immediately because it has zero redundancy; a single drive failure causes total data loss, making it the worst choice for resiliency despite its performance benefits. RAID 6 also uses dual parity and seems close, but it's a generic standard implementation - on the MSA 2072, MSA-DP+ supersedes it with better rebuild performance and flash-optimized I/O, so choosing standard RAID 6 leaves performance on the table. Triple+ Parity offers the most resiliency (three parity drives), but the extra overhead tanks performance, and the question demands the best balance of both.

Memory tip: Think "MSA = MSA-DP+" - when a vendor offers a proprietary RAID option named after their own product, it's almost always the right answer on a vendor certification exam because it's optimized specifically for that hardware. If you see a proprietary option, it beats the generic RAID standards.

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