Hello:
According to the Red Hat Virtualization Guide, Windows Server 2003 32-bit will only run as a fully virtualized guest on an AMD64 system.
I thought I have seen a lot of discussion about running paravirtualized Windows on CentOS. Is that a bad idea?
Neil
-- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, or other disaster? If so, ask me about our geographically redudant database system.
2009/7/8 Neil Aggarwal neil@jammconsulting.com:
Hello:
According to the Red Hat Virtualization Guide, Windows Server 2003 32-bit will only run as a fully virtualized guest on an AMD64 system.
I thought I have seen a lot of discussion about running paravirtualized Windows on CentOS. Is that a bad idea?
Neil
-- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, or other disaster? If so, ask me about our geographically redudant database system.
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
AFAIK you can only run any windows version in paravirtualized mode only in vmware server, not in Xen or KVM which are the virtualization technologies CentOS supports.
AFAIK you can only run any windows version in paravirtualized mode only in vmware server, not in Xen or KVM which are the virtualization technologies CentOS supports.
No. Vmware is no different than Xen or any other in this respect, they also don't have access to the source and therefore cannot provide a modified version of the OS.
There was a University project ages ago for Xen that was done under NDA but obviously was only POC and never released.
http://www.vmware.com/files/pdf/VMware_paravirtualization.pdf
jlc
2009/7/8 Joseph L. Casale JCasale@activenetwerx.com:
AFAIK you can only run any windows version in paravirtualized mode only in vmware server, not in Xen or KVM which are the virtualization technologies CentOS supports.
No. Vmware is no different than Xen or any other in this respect, they also don't have access to the source and therefore cannot provide a modified version of the OS.
There was a University project ages ago for Xen that was done under NDA but obviously was only POC and never released.
http://www.vmware.com/files/pdf/VMware_paravirtualization.pdf
jlc _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
good to know that.
thanks
Joseph L. Casale wrote:
AFAIK you can only run any windows version in paravirtualized mode only in vmware server, not in Xen or KVM which are the virtualization technologies CentOS supports.
No. Vmware is no different than Xen or any other in this respect, they also don't have access to the source and therefore cannot provide a modified version of the OS.
But Vmware and I think Virtualbox are capable of running unmodified Windows guests even on CPU's lacking the vt capability. I don't think Xen can do that.
No. Vmware is no different than Xen or any other in this respect, they also don't have access to the source and therefore cannot provide a modified version of the OS.
But Vmware and I think Virtualbox are capable of running unmodified Windows guests even on CPU's lacking the vt capability. I don't think Xen can do that.
Right, but that was not in debate or what I was referring to.
I thought I have seen a lot of discussion about running paravirtualized Windows on CentOS. Is that a bad idea?
It's not a bad idea, it's just not a possible one :) What you have seen is talk of the paravirt *drivers* that you use in an HVM domain to improve the otherwise useless performance. As windows is not opensource, the Xen guys have not been able to write code on their side to paravirtualize it...
However, there has been some agreements done with Windows Server 2008 and "Enlightenments" but I haven't followed it.
Setup an HVM, install windows, and give James Harpers GPLPV Drivers a go.
jlc
Joseph:
OK, so the drivers are paravirtualized, not the entire OS. I think I get it.
Thanks, Neil
-- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask me about our geographically redudant database system.
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Joseph L. Casale Sent: Wednesday, July 08, 2009 4:28 PM To: 'CentOS mailing list' Subject: Re: [CentOS] Window Server 2003 will not run as paravirtualized?
I thought I have seen a lot of discussion about running paravirtualized Windows on CentOS. Is that a bad idea?
It's not a bad idea, it's just not a possible one :) What you have seen is talk of the paravirt *drivers* that you use in an HVM domain to improve the otherwise useless performance. As windows is not opensource, the Xen guys have not been able to write code on their side to paravirtualize it...
However, there has been some agreements done with Windows Server 2008 and "Enlightenments" but I haven't followed it.
Setup an HVM, install windows, and give James Harpers GPLPV Drivers a go.
jlc _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
OK, so the drivers are paravirtualized, not the entire OS. I think I get it.
Yeah, instead of me paraphrasing and probably butchering what is well stated, have a quick read of this article.
Lots of good info...
http://searchservervirtualization.techtarget.com/tip/0,289483,sid94_gci12818...
hth, jlc
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