Vmotions taking a long time?

blinkme323
blinkme323 used Ask the Experts™
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Hello,

I'm trying to troubleshoot some performance issues that we've been having and one thing I've noticed is that it appears that vmotioning from one host to another has been taking a few minutes.  I know there are more granular methods of finding this out, but is the attached event a fair representation of a that particular vmotion taking ~2.5 minutes, or am I misreading it?

vmotion
Thanks
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VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
Normal observation, is there a problem with that....... is service affected ?

What's the problem DRS is moving the machine, DRS will wait until the right moment, e.g. Host and Guest low CPU to complete the move.

I would be more concerned if it failed!

vMotion is either a 1 or a 0, pass or fail!

Author

Commented:
Ok, so the initial time listed is when the vmotion was requested and the DRS time is the moment that it decided to actually vmotion the machine?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
When the process was finished and over.

Also many events can delay it, number of vMotions active, cpu usage in VM and Host, also speed of VMKernel Interfaces, and how many...

It's not INSTANT!

Author

Commented:
Not trying to imply that it is instant.  What I'm trying to understand is if this this is a "normal" delay or something that could potentially impact that the underlying OS.  From what I understand, the vmotion won't occur unless the "stun time" is less than 500ms.  So if what I posted has no bearing on that, then I assume that the vmotions are fine.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
normal.

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