Describe Non-Disruptive Migration Features and Benefits. POWERMAX-OPERATE Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A telecommunications company is migrating a customer-billing database from a PowerMax 8500 to a PowerMax 2000. The hosts are connected via Fibre Channel and use native multipathing. The storage team wants to ensure that the migration does not require any changes to the host's device mappings. What feature of NDM makes this possible?

   • ANDM requires the storage team to manually update the host's multipathing configuration after the migration.
   • BNDM uses a special driver on the host that intercepts I/O and redirects it to the target array.
   • CNDM requires the hosts to be rebooted after the cutover to discover the new device mappings.
   • DNDM presents the target LUNs with the same device identity as the source, so the hosts see no change in their device mappings.
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2. 7foundation · easy

   Which of the following is a benefit of using Non-Disruptive Migration (NDM) in PowerMaxOS 10?

   • AGuarantees faster performance on the target array
   • BEliminates the need for data replication
   • CIncreases the storage capacity of the source array
   • DReduces the risk of data loss during migration
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4. 8application · medium

   A retail company is migrating its point-of-sale (POS) database from a PowerMax 8000 to a PowerMax 2500. The POS system experiences peak I/O during business hours, and the migration must not degrade performance. The storage team plans to run the NDM migration during off-peak hours. What is the primary benefit of scheduling the migration during off-peak hours?

   • AIt allows the storage team to skip the prerequisite checks because the hosts are less active.
   • BIt guarantees that the migration will complete faster than during peak hours.
   • CIt reduces the impact of the copy I/O on the production workload, minimizing the risk of performance degradation.
   • DIt eliminates the need to monitor the NDM session during the migration.
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5. 9application · medium

   A healthcare provider is migrating a patient-management database from a PowerMax 2000 to a PowerMax 2500. The storage team has started the NDM migration and is monitoring the session in Unisphere. Midway through the copy, the team notices that the migration is progressing slower than expected. What is the most appropriate action to take?

   • ADelete the target LUNs and recreate them with a larger size to speed up the copy.
   • BReboot the hosts to refresh their I/O paths to the target array.
   • CCheck the array performance metrics to identify if the copy is contending with production I/O and adjust the migration schedule if needed.
   • DAbort the NDM session immediately and restart it from the beginning.
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6. 10foundation · easy

   Which of the following is a typical use case for Non-Disruptive Migration (NDM)?

   • ASetting up a new disaster recovery site
   • BUpgrading the firmware on the array
   • CPerforming a full backup of the storage system
   • DBalancing workloads across multiple arrays
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