Free HCE-3700 – Hitachi Vantara Certified Expert - Performance architect Practice Test Question

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  Using the largest possible pools is a recommended practice.

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  Exposure to failure and recovery from failure must be considered when recommending the maximum size of a pool.

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  HDP pools can be used for sizing HDT pools.

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  Tier migration is based on performance and space capacity.

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  Increase the external path LUN queue depth setting.

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  Increase the number of LUNs mapped from the external RAID group.

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  Change Cache Mode to “Disabled”.

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  Increase the server HBA LUN queue depth to 64.

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  perfmon

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  iogen

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  iostat

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  sar

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  The VSD receiving the workload of a failed VSD is not pre-determined.

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  Providing reserved capacity to accommodate failure is a requirement when planning for capacity for normal operations.

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  The workload of a failed VSD board always transfers to its redundant partner VSD board.

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  The workload of a failed VSD board is dynamically redistributed among surviving VSD boards.

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  customer requirements

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  throughput (MBs)

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  elapsed time

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  storage system response time

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  resource utilization (% busy)

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  Change to Continuous mode and increase the monitor period cycle time.

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  Change to Period mode and increase the monitor period cycle time.

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  Change to Period mode and reduce the monitor period cycle time.

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  Change to High-Performance mode and reduce the monitor period cycle time.

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  1

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  2

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  3

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  4

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  an HDT pool consisting of SAS 10K and FMD drives

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  an HDP pool with FMD drives

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  an HDP pool consisting of NL-SAS and FMD drives

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  an HDP pool consisting of external LDEVs provisioned on a VSP F400 system

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  The utilization line starts at a low level and gradually climbs to a high spike at the extreme right-hand side.

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  The utilization line starts at a medium level on the left side and fails away slowly.

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  The utilization line stays at a high level until half way across the chart then drops sharply.

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  The utilization line starts at a high level on the left side then drops away sharply.

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  Re-asses after HDT performs page migration cycles.

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  Add more drives to Tier 1.

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  Add more drives to Tier 1 and Tier 2.

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  Remove the SSD tier.