D-PST-DS-00: Dell PowerStore DesignDemo

By Dell · Question Mode

QuestionQ14

Solution Design

A customer intends to consolidate several application workloads onto PowerStore but has supplied only total capacity requirements.

To create a realistic configuration, additional workload characteristics must be collected.

Which set of additional information must be gathered?

  • A Per-workload performance, read/write ratio, sequential vs. random I/O %, average I/O (block) size, and performance and capacity growth
  • B Number and types of hypervisors, guest OSs and versions, connectivity, read/write ratio, sequential vs. random I/O %, and workload performance
  • C Data reduction ratio, DRE geometry, capacity and CPU saturation levels, cluster appliance count, and average I/O (block) size
  • D Number of storage administrators, change management process, maintenance window length, and preferred rack location for the array
Explanation

PowerStore sizing requires workload-level capacity and performance characteristics. Performance demand depends on the read/write ratio, sequential versus random I/O distribution, and average I/O block size, while both performance and capacity growth are necessary to size for projected demand. Dell’s storage-sizing guidance defines workload requirements as performance and capacity, includes I/O sizing inputs, and calls for planning future growth.

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