hi! May I allocate whatever memory to windows domU... Can I allocate 20Gb to windows 2008 server domU?? Thanks, alberto _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
If you have 20.25 gb of memory installed, yes. Best Regards, Nathan Eisenberg Sr. Systems Administrator Atlas Networks, LLC Sent from my BlackBerry -----Original Message----- From: Alberto Asuero Arroyo <albertoasuero@gmail.com> Date: Mon, 29 Jun 2009 17:29:28 To: xen-users<xen-users@lists.xensource.com> Subject: [Xen-users] maximun memory for windows domU _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@atlasnetworks.us http://support.atlasnetworks.us/portal -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Nathan Eisenberg Sent: Monday, June 29, 2009 8:31 AM To: xen-users Subject: Re: [Xen-users] maximun memory for windows domU If you have 20.25 gb of memory installed, yes. Best Regards, Nathan Eisenberg Sr. Systems Administrator Atlas Networks, LLC Sent from my BlackBerry -----Original Message----- From: Alberto Asuero Arroyo <albertoasuero@gmail.com> Date: Mon, 29 Jun 2009 17:29:28 To: xen-users<xen-users@lists.xensource.com> Subject: [Xen-users] maximun memory for windows domU _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Alberto Asuero Arroyo
2009-Jun-29 17:16 UTC
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@atlasnetworks.us>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<http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.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@atlasnetworks.us > http://support.atlasnetworks.us/portal > > > -----Original Message----- > From: xen-users-bounces@lists.xensource.com [mailto: > xen-users-bounces@lists.xensource.com] On Behalf Of Nathan Eisenberg > Sent: Monday, June 29, 2009 8:31 AM > To: xen-users > Subject: Re: [Xen-users] maximun memory for windows domU > > If you have 20.25 gb of memory installed, yes. > Best Regards, > Nathan Eisenberg > Sr. Systems Administrator > Atlas Networks, LLC > > Sent from my BlackBerry > > -----Original Message----- > From: Alberto Asuero Arroyo <albertoasuero@gmail.com> > > Date: Mon, 29 Jun 2009 17:29:28 > To: xen-users<xen-users@lists.xensource.com> > Subject: [Xen-users] maximun memory for windows domU > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@atlasnetworks.us<mailto:support@atlasnetworks.us> http://support.atlasnetworks.us/portal From: Alberto Asuero Arroyo [mailto:albertoasuero@gmail.com] 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@atlasnetworks.us<mailto:nathan@atlasnetworks.us>> 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<http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.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@atlasnetworks.us<mailto:support@atlasnetworks.us> http://support.atlasnetworks.us/portal -----Original Message----- From: xen-users-bounces@lists.xensource.com<mailto:xen-users-bounces@lists.xensource.com> [mailto:xen-users-bounces@lists.xensource.com<mailto:xen-users-bounces@lists.xensource.com>] On Behalf Of Nathan Eisenberg Sent: Monday, June 29, 2009 8:31 AM To: xen-users Subject: Re: [Xen-users] maximun memory for windows domU If you have 20.25 gb of memory installed, yes. Best Regards, Nathan Eisenberg Sr. Systems Administrator Atlas Networks, LLC Sent from my BlackBerry -----Original Message----- From: Alberto Asuero Arroyo <albertoasuero@gmail.com<mailto:albertoasuero@gmail.com>> Date: Mon, 29 Jun 2009 17:29:28 To: xen-users<xen-users@lists.xensource.com<mailto:xen-users@lists.xensource.com>> Subject: [Xen-users] maximun memory for windows domU _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com<mailto:Xen-users@lists.xensource.com> http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com<mailto:Xen-users@lists.xensource.com> http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com<mailto:Xen-users@lists.xensource.com> http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Alberto Asuero Arroyo
2009-Jun-29 19:00 UTC
Re: [Xen-users] maximun memory for windows domU
>>You’re running this as a domU, correct?Yes What is crashing, the domU or the dom0? dom0 May you look this? http://lists.xensource.com/archives/html/xen-users/2009-06/msg00992.html http://lists.xensource.com/archives/html/xen-users/2009-06/msg00982.html Thank you very much. I''m really apreciate your help Best regards On Mon, Jun 29, 2009 at 8:19 PM, Nathan Eisenberg <nathan@atlasnetworks.us>wrote:> 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@atlasnetworks.us > > http://support.atlasnetworks.us/portal > > > > *From:* Alberto Asuero Arroyo [mailto:albertoasuero@gmail.com] > *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@atlasnetworks.us> 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<http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.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@atlasnetworks.us > http://support.atlasnetworks.us/portal > > > > -----Original Message----- > From: xen-users-bounces@lists.xensource.com [mailto: > xen-users-bounces@lists.xensource.com] On Behalf Of Nathan Eisenberg > Sent: Monday, June 29, 2009 8:31 AM > To: xen-users > Subject: Re: [Xen-users] maximun memory for windows domU > > If you have 20.25 gb of memory installed, yes. > Best Regards, > Nathan Eisenberg > Sr. Systems Administrator > Atlas Networks, LLC > > Sent from my BlackBerry > > -----Original Message----- > From: Alberto Asuero Arroyo <albertoasuero@gmail.com> > > Date: Mon, 29 Jun 2009 17:29:28 > To: xen-users<xen-users@lists.xensource.com> > Subject: [Xen-users] maximun memory for windows domU > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users