Which three RAID configurations are supported by VSP Midrange systems? (Choose three.)

Question

Options

• A2D + 2D
• B4D + 1P
• C7D + 1P
• D8D + 1P
• E10D + 2P

• A
  6% (2)
• B
  84% (27)
• D
  9% (3)

Explanation

VSP Midrange systems support 4D+1P (RAID 5, small), 7D+1P (RAID 5, large), and 10D+2P (RAID 6) because these are the validated parity-based RAID stripe widths Hitachi qualifies on these platforms - covering single-parity efficiency and double-parity resilience.

Why the distractors are wrong:

• A (2D+2D): This notation describes RAID 10 (mirrored pairs), which is a separate category not expressed in the D+P format and is not among the three RAID 5/6 configurations asked about here.
• D (8D+1P): This stripe width is not a supported configuration on VSP Midrange; Hitachi skips it in favor of the standard 7D+1P and 10D+2P options.

Memory tip: Think 4-7-10 - the data-drive counts go up in steps (4, 7, 10), and the parity count doubles only at the end (1P, 1P, 2P). If you remember "4, 7, 10 with parity doubling at 10," you've locked in all three correct answers.

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