Why is this VM ballooning?

[TacoSauce]

In our cluster only this vm is ballooning? There's no memory overcommiting on the host where's the vm is running, the vm doesn't have resource allocation limits. Anyone a suggestion?

With regards,

Wouter

[MauroBonder]

The balloning serves to free memory that the VM is not using it where if you need another VM, it will When Using this memory released through the ballon.

if you preffer you can disable ballon http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=100258...

try read follow doc www.vmware.com/pdf/vsphere4/r40/vsp_40_resource_mgmt.pdf and http://sudrsn.wordpress.com/2010/07/20/memory-management-in-vsphere-4-1/

[Lessi001]

Hi,

do you work with ressource pools? Maybe there is a memory pressure because of this.

Regards,

Andi

[TacoSauce]

I think I understand the concept of ballooning. Isn't it weird that only this vm is showing a yellow metric in the resource allocation guest memory overview? If your answer would be correct then I should see more ballooning metrics in our cluster.

Cheers,

Wouter

[Lessi001 · Accepted solution]

Hi,

the reason why only one VM is ballooning is "idle memory tax".

I think you will find a lot of good explanations in Google about this.

Regards,

Andi

[firestartah]

Hi

It's very possible the reasons you are only seeing it on this machine is because this machine doesn't seem to be doing much from the memory consumed value and so ballooning is able to take a large portion of the memory allocated to it

Gregg

[TacoSauce]

Thnx a lot. I think that's a proper explanation for this issue.

Cheers,

Wouter