Compare and Contrast Extent Mobility, Device Mobility, and Batch Migrations METRO-NODE-OPERATE Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Which migration type generally requires the least operational planning and has the simplest rollback?

   • ABatch migration
   • BExtent mobility
   • CDevice mobility
   • DAll migration types have the same complexity
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   In which scenario is a batch migration most appropriate?

   • AReplacing one storage array with a new model
   • BMoving a single hot extent to a faster storage pool
   • CLarge-scale data center migration involving hundreds of virtual devices
   • DMoving a single virtual device to a different site for disaster recovery
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which of the following is a typical use case for extent mobility?

   • AMoving an entire database virtual device to a new array for hardware refresh
   • BMigrating all virtual devices from a retiring data center to a new one
   • CCreating a point-in-time snapshot of a virtual device for backup
   • DOptimizing performance by moving frequently accessed extents to a higher-performance storage pool
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   A Metro Node cluster has a critical application with strict performance requirements. The administrator must move a set of extents from a high-latency pool to a low-latency pool. The migration must not degrade application performance, and the administrator is concerned about the impact of the migration on cluster resources. Which approach best balances the need for performance and resource utilization?

   • AUse extent mobility and schedule it during off-peak hours to minimize performance impact
   • BUse device mobility to move the entire device to the low-latency pool
   • CUse extent mobility but do not schedule it, as it has no performance impact
   • DUse batch migration to move all extents at once to complete quickly
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   How does extent mobility typically affect host access during the migration?

   • AIt causes a significant performance degradation for all hosts
   • BIt requires hosts to be shut down and restarted after the migration
   • CIt requires a brief outage to switch the host to the new location
   • DIt has no impact on host access; the migration is transparent
   Reveal Solution Discussion Select an answer first