Broadcom-VMware

VCP510 · Question #258

Which of these factors indicates a high likelihood that the performance of a virtual machine disk is being constrained by disk I/O?

The correct answer is B. A high device latency value. Disk performance bottlenecks are usually due to either Disk queue lenght or Disk Latency

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Question

Which of these factors indicates a high likelihood that the performance of a virtual machine disk is being constrained by disk I/O?

Options

AA large number of commands issued
BA high device latency value
CA high disk used value
DA large number of kilobytes read and written

How the community answered

(57 responses)

A
4% (2)
B
74% (42)
C
16% (9)
D
7% (4)

Explanation

Disk performance bottlenecks are usually due to either Disk queue lenght or Disk Latency

Topics

#device latency#disk I/O bottleneck#storage performance#SCSI metrics

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