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Vmware ESX - Gaps in Performance Charts

Posted on 2009-12-21
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Hello,

A few days ago I had a ESX host, where all it's VM's where displaying about 6 - 5min gaps in the performance charts over a 2 and a half hour period. By gaps I am referring to the instance where there was a absence of data recorded on the Line Graphs (no line in the line graph).

During one of these gaps, one of your web server had issues at the same time.

Wondering if anyone might have ran into the issue before.
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Question by:ACIAR
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by:ryder0707
ID: 26100923
How's the uptime for each guest OS?
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by:ACIAR
ID: 26100976
If I understand your question correctly I believe all guest OS's where up and running for the whole time. There where about 6 gaps and every VM on the ESX host displayed these characterisitics so I think I would have notice a larger proportion of our information systems going crazy.

However I will go and double check as I can understand how that would explain the gaps.

If that was it, then why where they dropping out so frequently ?

I will be back
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ryder0707 earned 1000 total points
ID: 26101090
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What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:ACIAR
ID: 26101159
There where 2 points there.

The first I understand and I dont believe that to be the case.

The second point I think may be the problem but I dont complete understand it. I relates to an issue with a time difference between the vCenter Server and the ESX Host ??? I think we did have a issue with the ESX host having the incorrect time and this may have been noticed and fix at around this time.

Either way I think it explains the "gaps" - The vSphere Client overview performance charts use zeroes to denote missing data samples.
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Expert Comment

by:ryder0707
ID: 26101172
Yeah mate, no stats basically means nothing to show, it cant pretend its there rite
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Author Comment

by:ACIAR
ID: 26101195
Hey Ryder0707 thanks for the help, can you also have a look at this issue im having ?

http://www.experts-exchange.com/Software/VMWare/Q_24995781.html 
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