A storage administrator is monitoring the pool capacity of two identical Dell Unity XT systems. Each system has every LUN replicated to the other system and all replication sessions are in sync…

Question

Options

• ACloudlQ is not receiving the same amount of updates from one of the two systems.
• BOne of the Unity systems is used less than the other one.
• CDell Unity Data Reduction is not identically enabled on LUNs on both systems
• DDell Unity Data Reduction license is not enabled on one of the two systems.

• A
  12% (5)
• B
  7% (3)
• C
  63% (27)
• D
  19% (8)

Explanation

Data Reduction settings must be consistent across replicated LUNs to ensure equal space efficiency. If Data Reduction (inline deduplication and compression) is enabled on LUNs on one Unity system but not identically configured on the replicated copies on the other system, the destination system stores the same data with less efficiency - consuming more physical capacity and appearing to fill up faster in CloudIQ.

Why the distractors are wrong:

• A is ruled out by the question itself, which explicitly states CloudIQ is receiving updates from both systems equally.
• B contradicts the premise - both systems are stated to be used for production storage, and all LUNs are replicated and in sync, meaning both systems hold the same data.
• D is a near-miss but too broad: a missing license would disable Data Reduction entirely on that system, which would likely be noticed during setup. The more precise exam-relevant scenario is that the license exists but the feature isn't identically enabled at the LUN level.

Memory tip: Think "replication copies data, not settings." Replication ensures your data is mirrored, but LUN-level efficiency features like deduplication and compression must be configured independently on both sides - if one side lacks them, it pays the full capacity cost.

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