Which metric in the Exhibit would identify high latency…

Which metric in the Exhibit would identify high latency for a storage device?

Which metric in the Exhibit would identify high latency for a storage device?

A.
QAVG/cmd

B.
KAVG/cmd

C.
DAVG/cmd

D.
GAVG/cmd

Explanation:
https://blogs.vmware.com/vsphere/2012/05/troubleshooting-storage-performance-in-vsphere-part-1-
the-basics.html

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oschroeder

oschroeder

I agree with C being the answer:
https://kb.vmware.com/s/article/1008205

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

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