[ovirt-users] Cannot run VM. Memory size exceeds supported limit for given cluster version.

[Martin Pavlík]

Hi Punit,

one thing is confusing me. You refer to VM32BitMaxMemorySizeInMB, but you are working with 64bit VM/template. Shouldn’t it be VM64BitMaxMemorySizeInMB? Anyways both should allow for approx. 64GB of memory. If you create VM with 63GB (or closest lower amount)  it works?

Could you provide relevant part of engine.log, vdsm.log, supervdsm.log and libvirt log? From the time when the error occurs?

M.


> On 17 Feb 2015, at 03:00, Punit Dambiwal <hypunit at gmail.com> wrote:
> 
> Hi,
> 
> I am running Ovirt 3.5.1 and have the following settings in the engine config for VM memory :-
> 
> -----------------
> [root at ccr01 ~]# engine-config -g VM32BitMaxMemorySizeInMB
> VM32BitMaxMemorySizeInMB: 65536 version: general
> 
> [root at ccr01 ~]# engine-config -g VM64BitMaxMemorySizeInMB
> VM64BitMaxMemorySizeInMB: 524288 version: 3.0
> VM64BitMaxMemorySizeInMB: 2097152 version: 3.1
> VM64BitMaxMemorySizeInMB: 2097152 version: 3.2
> VM64BitMaxMemorySizeInMB: 4096000 version: 3.4
> VM64BitMaxMemorySizeInMB: 4096000 version: 3.5
> VM64BitMaxMemorySizeInMB: 2097152 version: 3.3
> [root at ccr01 ~]#
> --------------------
> 
> When i create a guest VM more than 64GB memory,VM is failed to start with following error:
> 
> "Cannot run VM. Memory size exceeds supported limit for given cluster version."
> 
> Steps to Reproduce:
> 1. Create new VM or edit existing VM Memory Size to "65536 MB" from Ovirt GUI.
> 2. Created the guest VM through template 64-bit... so it will support more than 16 GB memory.
> 3. Now, Start the VM.
> 
> Thanks,
> Punit
> 
> 
> 
> 
> 

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