A system engineer must provision one storage pool to include 14 Extreme Performance Drives, 6 Performance Drives, and 9 Capacity Drives. During the creation process in Unisphere, they notice that…

Question

Options

• ADrive Firmware must be updated.
• BUnity Management Software requires a refresh.
• CDrives must be reseated.
• DSystem drives are not allowed in the storage pool.

• A
  3% (2)
• B
  16% (9)
• C
  9% (5)
• D
  72% (42)

Explanation

Option D is correct because Dell EMC Unity automatically designates certain drives as system drives to store critical metadata and internal system data - these drives are reserved for system use and cannot be allocated to user-created storage pools, which is why Unisphere grays out the Performance Tier and shows only the two remaining non-system drives as available.

Why the distractors are wrong:

• A (Firmware): Outdated firmware causes compatibility warnings or errors, not a grayed-out tier with a specific drive count visible.
• B (Software refresh): A stale UI would cause inaccurate data display across the board, not a logically consistent "2 unused drives" message pointing to a real system constraint.
• C (Reseating): Improperly seated drives appear as failed, missing, or unresponsive - not silently reserved and counted as a specific number.

Memory tip: Think "system drives serve the system, not your pools." In Unity, the system stakes its claim on select drives first - what's left is what you get to provision. If a tier looks short on available drives, ask whether the system already claimed them.

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