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xen-users
RE: [Xen-users] maximun memory for windows domU
You’re running this as a domU, correct? What is crashing, the
domU or the dom0?
Best Regards
Nathan Eisenberg
Sr. Systems Administrator
Atlas Networks, LLC
support@xxxxxxxxxxxxxxxx
http://support.atlasnetworks.us/portal
From: Alberto Asuero
Arroyo [mailto:albertoasuero@xxxxxxxxx]
Sent: Monday, June 29, 2009 10:16 AM
To: Nathan Eisenberg
Cc: xen-users
Subject: Re: [Xen-users] maximun memory for windows domU
Thanks Nathan,
I'm running a w2k8 with 20 gb of ram, I'm asking because my server freezes or
reboots (usually without any message on console or logs)
My server has 48GB of memory so the memory doesn't should be a problem...
Any ideas ??
On Mon, Jun 29, 2009 at 6:49 PM, Nathan Eisenberg <nathan@xxxxxxxxxxxxxxxx> wrote:
To clarify, as I have now had multiple people email me
off-list:
You'd need 20.25 GB installed so that you have memory for the Dom0. Since
you're unlikely to install this amount of memory (your next likely RAM quantity
would be 24GB), there's no problem. My point was just that you can't
forget that Dom0 and the hypervisor are their own systems, and need memory to
function. :)
Also, I had someone ask about whether Windows would see it (due to the
oft-misunderstood memory 'limitations' of 32-bit Windows) - this link is handy.
http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx
So you'll either want to use Enterprise or Datacenter (which support 64GB of
memory in 32bit mode), or use a 64-bit version of any edition. I've heard
reports that 64bit Windows seems to perform better in HVM than 32 bit, so that
might be a good idea anyways.
Best Regards
Nathan Eisenberg
Sr. Systems Administrator
Atlas Networks, LLC
support@xxxxxxxxxxxxxxxx
http://support.atlasnetworks.us/portal
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