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karunk
Contributor
Contributor

How to find IO intensive VM in VMware environment

Hi,

Actually there is a performance issue in a storage array which is over utilizedSmiley Sad.  My suspicion is that there are some VM's which are using most of the IO capacity of the storage arrray. So I need a methodology for identifying the most IO intensive VM's in a VMware environment and I wish someone could let me know if you have any information or solution regarding this issue.

ThanksSmiley Happy in advance

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msatya
Enthusiast
Enthusiast

please check this link kb.vmware.com/kb/1011965

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karunk
Contributor
Contributor

Thanks for responding. You have given the solution to solve performance issue but what I require is how to identify those VMs which were performing intensive IOPS,Thus reducing the performance..

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arturka
Expert
Expert

Hi

one of the option is run ESXTOP for few hours in batch mode (masure only disk counters) and analize an output

http://vmwaremine.com/2011/08/10/how-to-use-esxtop-or-resxtop-in-batch-mode/

Artur

VCDX77 My blog - http://vmwaremine.com
AntonAleksandro
Contributor
Contributor

hm.. so there is no way to do this research inside vCenter? I am trying to figure out which vm is using most of IO.. but it seems that this counter is available only for esxi host and when I select "view stacked (per VM)" I always get "Performance data is currently not available". I have already set level of loggin to 3. Smiley Sad

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UmeshAhuja
Commander
Commander

Hi,

You can get the report from

Log in to vCenter --> Select the Host --> Go to Performance --> Click Advance --> Select Switch to Disk / Datastore --> Chart option --> Select any type of report you want --> Select stacked Graph (Per VM) --> Select the counters --> Apply --> OK

By this you can get the report which VM is having high I/O

                OR

There is the tool called as VOPS which can be also very useful. For more details go with below link

http://www.vkernel.com/products/capacity-manager/compare

Thanks n Regards
Umesh Ahuja

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AntonAleksandro
Contributor
Contributor

I was there, but for almost all graphs I get "Performance data is currently not available", even though logging is set to level3. but I suppose this I have to ask in another thread.. At least I am thankful for your info, now I know it is something wrong with our setup.

Anton.

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