[CentOS] Sharing RAM between VM

Jim Wildman jim at rossberry.com
Tue Apr 14 17:58:12 UTC 2009


On Tue, 14 Apr 2009, Larry wrote:

> Hi, all!
> I have a server with 4 virtual machines ( using xen). Is there a way to
> make them share RAM? I found out something about balloons, but it didn't
> distribute RAM dynamically. So I decided that xen can't achieve that.
> I tried luci and ricci and now all my VMs are in a cluster. But I don't
> think this actually helped.
> Can you suggest a software and/or manual or a question which I should
> ask google for completing this task?
>

'over commit' of RAM is the phrase you are probably looking for.  And
this is one of the limitations of Xen (it doesn't).

----------------------------------------------------------------------
Jim Wildman, CISSP, RHCE       jim at rossberry.com http://www.rossberry.com
"Society in every state is a blessing, but Government, even in its best
state, is a necessary evil; in its worst state, an intolerable one."
Thomas Paine


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