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Exam 2V0-621 topic 1 question 211 discussion

Actual exam question from VMware's 2V0-621
Question #: 211
Topic #: 1
[All 2V0-621 Questions]

Refer to the Exhibit.

An administrator is troubleshooting intermittent poor performance of virtual machines in a vSphere 6.x cluster. Investigating esxtop data shows that the only statistic that stands out is %CSTP as depicted in Exhibit 1:


The administrator proceeds to switch to the Power Management screen and observes the data depicted in Exhibit 2:


Based on the information in the exhibits, which two configurations are probable causes of the poor performance? (Choose two.)

  • A. The active power policy is set to Low Power.
  • B. The host has active Sleep States configured in the BIOS.
  • C. The active power policy is set to High Performance.
  • D. The host has active Power States configured in the BIOS.
Show Suggested Answer Hide Answer
Suggested Answer: AB 🗳️
A and B -

Analyzing esxtop columns -
Refer to this table for relevant columns and descriptions of these values:

Column Description -

CMDS/s -
This is the total amount of commands per second and includes IOPS (Input/Output Operations Per Second) and other SCSI commands such as SCSI reservations, locks, vendor string requests, unit attention commands etc. being sent to or coming from the device or virtual machine being monitored.
In most cases, CMDS/s = IOPS unless there are a lot of metadata operations (such as SCSI reservations)
DAVG/cmd This is the average response time in milliseconds per command being sent to the device.
KAVG/cmd This is the amount of time the command spends in the VMkernel.
GAVG/cmd This is the response time as it is perceived by the guest operating system. This number is calculated with the formula: DAVG + KAVG = GAVG
Link:

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1008205
And, BIOS:
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018206

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