Describe and Configure Data Reduction UNITY-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A company is planning to deploy a new Unity array for two workloads: a file server with user documents and a high-performance compute (HPC) cluster that writes large, already-compressed result files. The storage team wants to enable Data Reduction on the pool to save space. The HPC workload is latency-sensitive and the file server is not. What is the best approach?

   • AEnable Data Reduction on the pool, but disable it on the HPC LUNs using LUN-level settings.
   • BEnable Data Reduction on a single pool for both workloads, because the file server data will offset the HPC performance impact.
   • CEnable Data Reduction on the pool and use quality of service (QoS) to limit the HPC workload's I/O.
   • DCreate two separate pools: one with Data Reduction enabled for the file server and one without for the HPC cluster.
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2. 12foundation · easy

   How does inline deduplication on Dell Unity systems work?

   • AIt identifies and removes duplicate data blocks as they are written, storing only unique blocks
   • BIt periodically scans the storage system and removes duplicate files after they have been written
   • CIt creates a single copy of the entire volume and uses pointers for all other volumes
   • DIt compresses individual files by removing redundant characters within each file
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4. 13application · medium

   A Unity administrator has enabled Data Reduction on a pool and wants to monitor its effectiveness over time. Which metric in Unisphere provides the most direct indication of how much physical space is being saved?

   • AThe pool's free space, which shows how much capacity remains.
   • BThe Data Reduction ratio, which shows the ratio of logical data to physical space used.
   • CThe LUN's used space, which shows the physical space consumed by the LUN.
   • DThe total space savings, which shows the difference between logical and physical space used.
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5. 14foundation · easy

   Which workload is considered a good candidate for Data Reduction on Dell Unity?

   • AReal-time financial transaction logs
   • BHigh-definition video editing
   • CEncrypted database files
   • DVirtual machine storage
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6. 15expert · hard

   A company is deploying a Unity array for a virtual desktop infrastructure (VDI) environment. The VDI LUNs will be stored in a pool with Data Reduction enabled. The company also plans to use snapshots for backup. The storage administrator is concerned about the interaction between Data Reduction and snapshots. What is the correct consideration?

   • ASnapshots will consume additional space, but Data Reduction will also apply to snapshot data, reducing the overall footprint.
   • BSnapshots cannot be taken on pools with Data Reduction enabled.
   • CSnapshots will not be affected by Data Reduction, so they will consume the full logical space.
   • DData Reduction must be disabled before taking a snapshot, then re-enabled after.
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