Compare and Contrast Extent Mobility, Device Mobility, and Batch Migrations METRO-NODE-OPERATE Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What mechanism does device mobility use to maintain data consistency during the migration?

   • AIt performs the migration during a maintenance window when no I/O occurs
   • BIt locks the device and prevents any I/O until the migration is complete
   • CIt relies on the host to flush its cache before the migration
   • DIt copies the data while tracking changes, then applies the changes to the destination
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   An organization is replacing an aging storage array with a new model. The Metro Node cluster currently presents virtual devices backed by the old array. The replacement must occur without disrupting host access to the data. Which migration approach should be used?

   • ADevice mobility to move the virtual devices from the old array to the new array
   • BExtent mobility to move individual extents from the old array to the new array
   • CBatch migration of all extents from the old array to the new array
   • DA host-based copy of the data from the old array to the new array
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

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

   • APerforming a large-scale consolidation of multiple data centers
   • BMoving a few extents to balance I/O load across multiple pools
   • CRelocating a single critical workload to a different storage system for maintenance
   • DCreating a new virtual device from a snapshot for testing purposes
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   An administrator needs to rebalance capacity between two storage pools by moving a few extents. Which migration type should they use?

   • ABatch migration
   • BDevice mobility
   • CAny of the above
   • DExtent mobility
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   Which migration type generally has the lowest impact on CPU and memory resources in the Metro Node directors?

   • AAll migration types have the same CPU and memory impact
   • BExtent mobility
   • CBatch migration
   • DDevice mobility
   Reveal Solution Discussion Select an answer first