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[Xen-users] Re: Xen 4.0 memory overcommitment
- To: Xen List <xen-users@xxxxxxxxxxxxxxxxxxx>
- From: Antoine Benkemoun <antoine.benkemoun@xxxxxxxxx>
- Date: Mon, 26 Apr 2010 10:54:51 +0200
- Delivery-date: Mon, 26 Apr 2010 01:56:24 -0700
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Does anyone have any pointers concerning memory overcommitment ?
Thank you in advance for your help,
Antoine
On Wed, Apr 21, 2010 at 10:23 PM, Antoine Benkemoun <antoine.benkemoun@xxxxxxxxx> wrote:
Hello,
I am running a functional Xen 4.0 platform. The objective is the project I am currently running is to replace 4 VMWare ESX by 4 Xen 4.0 hypervisors. I have been able to reproduce all the core VMWare features in Xen (but better of course =D) except memory overcommitment.
I know this feature has been included since Xen 3.3 but I have found almost no information about it.
When I try to start a domain with more RAM then is available on the server I get the following message :
VmError: I need 1433600 KiB, but dom0_min_mem is 200704 and shrinking to 200704 KiB would leave only 1348320 KiB free.
Well I know it doesn't have enough RAM, that's the whole point. Do I need to enable something specific somewhere ? I am using the Jeremy's 2.6.31 kernel (thank you whoever you may be !).
Thank you in advance for your help,
Antoine
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