Describe Dynamic Pool Expansion, Considerations for Mixing Drive Sizes and the Rebuild Process UNITY-OPERATE Practice Questions (Page 2)

Questions 6–10

1. 6application · easy

   A government agency has a Unity XT dynamic pool with a mix of 6 TB and 10 TB drives. A 6 TB drive fails. The pool has no dedicated hot spare. What is the first step the system takes to protect data?

   • AThe system marks the pool as degraded and stops all I/O.
   • BThe system waits for an administrator to assign a hot spare.
   • CThe system begins rebuilding the data onto spare capacity distributed across the remaining drives.
   • DThe system copies the data to a remote replication target.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   A storage administrator needs to add capacity to an existing Dell Unity dynamic pool. What is the correct method to expand the pool?

   • AAdd drives only if they are from the same batch and have identical firmware; otherwise the pool cannot be expanded.
   • BAdd one or more drives of the same type to the pool; the system automatically rebalances data across all drives.
   • CCreate a new pool and migrate all data from the existing pool to the new one.
   • DReplace existing drives with larger drives one at a time; the pool expands automatically after each replacement.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A healthcare provider has a Unity XT dynamic pool with 12 TB drives. They need to add capacity but only have 16 TB drives. They are concerned about performance consistency. What should they consider?

   • AThe larger drives will be used only for parity data.
   • BThe system will automatically throttle the larger drives to match the smaller ones.
   • CMixing drive sizes may cause uneven performance because larger drives may have different performance characteristics.
   • DMixing drive sizes has no impact on performance.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A manufacturing company has a Unity XT dynamic pool with a mix of 8 TB and 12 TB drives. One of the 12 TB drives fails. The pool is currently 80% utilized. What is the most likely impact on the pool during the rebuild?

   • AThe pool will immediately delete the data on the failed drive.
   • BPerformance may be degraded because the rebuild consumes I/O resources.
   • CThe pool will automatically fail over to a secondary pool.
   • DThe pool will become read-only until the rebuild completes.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A university IT team is planning to expand a Unity XT dynamic pool by adding drives of a larger size. They are concerned about the impact on rebuild time if a drive fails after the expansion. What should they consider?

   • ARebuild time will increase because the larger drives contain more data to rebuild.
   • BRebuild time will decrease because larger drives are faster.
   • CRebuild time is determined only by the number of drives in the pool.
   • DRebuild time is unaffected by drive size.
   Reveal Solution Discussion Select an answer first