VM Memory always 100%

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VM Memory always 100%

Veeam Logoby RWeiss » Fri Mar 06, 2015 12:41 pm

Hi there,

We have been using Veeam B&R for quite some time now and are not in the process of testing and integrating Veeam ONE (v8 Patch 1).
One issue we have is that the Memory Usage of VMs is stuck at 100% and does not show up correctly. In addition in one instance, it reports wrong values for the total memory available (shows up as 55GB, but in reality it's over 160GB). I remember that it once worked without any issue with Veeam ONE 7.

Does anyone have an idea what's up?

I'm not sure whether I need to open a ticket for this (if this is the case, I will add my case ID as soon as the ticket is open).
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Re: VM Memory always 100%

Veeam Logoby Vitaliy S. » Fri Mar 06, 2015 12:54 pm

Hello, are you using vSphere or Hyper-V?
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Re: VM Memory always 100%

Veeam Logoby RWeiss » Fri Mar 06, 2015 1:10 pm

Oh I'm sorry, I completely forgot to mention this: Hyper-V
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Re: VM Memory always 100%

Veeam Logoby Vitaliy S. » Fri Mar 06, 2015 1:16 pm

And let me do another guess it's VM with static memory, right? ;) The reason why it always shows 100% of usage is that Hyper-V does not expose any data (via API) for VM memory usage when static memory is set. By default, these VMs consume all memory you've allocated to them.
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Re: VM Memory always 100%

Veeam Logoby RWeiss » Mon Mar 09, 2015 8:47 am

Yes, it's static. But I was under the assumption that Veeam One is able to show how much memory is actually consumed inside the VM? Because like this, Veeam ONE is kinda useless for us (we need to know how much RAM our VMs are actually consuming). This is too bad! :(
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Re: VM Memory always 100%

Veeam Logoby Vitaliy S. » Mon Mar 09, 2015 9:20 am

Veeam ONE can show it for VMs with dynamic memory, for VMs with static memory Microsoft does not have any APIs for that. Do you have any special reason for using static memory?
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Re: VM Memory always 100%

Veeam Logoby RWeiss » Mon Mar 09, 2015 12:58 pm

So if I understand correctly, Veeam would simply tell me (if using dynamic memory) how much RAM the VM uses on the Host?
The reason we use static memory is because we/Hyper-V had difficulties in the past to increase or decrease memory correctly which lead to performance issues.
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Re: VM Memory always 100%

Veeam Logoby Vitaliy S. » Mon Mar 09, 2015 1:01 pm

With dynamic memory being used you will have these views for your VMs > http://helpcenter.veeam.com/one/80/hype ... mmary.html
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Re: VM Memory always 100%

Veeam Logoby Shestakov » Tue Mar 10, 2015 12:08 pm

RWeiss,
Based on statistics of RAM usage for each VM you can find out the best RAM sizes for those VMs. I would also suggest to provide sufficient Minimum RAM for the applications in use for VMs with dynamic memory to avoid performance issues.
By the way, in upcoming major versions we are planning to add corresponding Veeam One optimization reports.
Thanks.
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Re: VM Memory always 100%

Veeam Logoby Shestakov » Tue Jan 12, 2016 3:17 pm

Hi RWeiss,
Veeam ONE v9 has been released today, and it contains a number of useful reports we were talking about in the thread, such as Oversized VMs(Hyper-V).
Enjoy new release with its great features!
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