Is it a good way to run common network services on dom0
(proxy-cache, dababase), beyond manage domU''s ?
Tom Lobato
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Tom Lobato wrote:> > > Is it a good way to run common network services on dom0 > (proxy-cache, dababase), beyond manage domU''s ?As far as security is concerned, NO. Have them on domus --Sadique> > > > Tom Lobato > > _______________________________________________ > 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
Hello Sadique, ok, I understand the security motivation. With Linux really has no problem in running as domU, but I made some tests with win2003 on xen and noted that free vmware server is faster. So, I''m thinking about use vmware. I really would like to use Xen, because it is real free software and I like so, but I must to deliver best performance to my customer. I read about virtualization and para-virtualization. As I understood, the full virtualization that Xen does with Windows is not yet so fast, because it lacks free PV drivers. Is there any optimization to try? I''m already running win2003 on a separate partition (/dev/sda6, a sata raid1 device). I use debian etch and xen 3.0 from debian repositories. Thank you! Tom Lobato Sadique Puthen escreveu:> Tom Lobato wrote: >> >> >> Is it a good way to run common network services on dom0 >> (proxy-cache, dababase), beyond manage domU''s ? > > As far as security is concerned, NO. Have them on domus > > --Sadique > >> >> >> >> Tom Lobato >> >> _______________________________________________ >> 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
Tom Lobato schrieb:> > Hello Sadique, > > ok, I understand the security motivation. > With Linux really has no problem in running as domU, but I made some > tests with win2003 on xen and noted that free vmware server is faster. > So, I''m thinking about use vmware. I really would like to use Xen, > because it is real free software and I like so, but I must to deliver > best performance to my customer. > > I read about virtualization and para-virtualization. As I understood, > the full virtualization that Xen does with Windows is not yet so fast, > because it lacks free PV drivers. Is there any optimization to try? I''m > already running win2003 on a separate partition (/dev/sda6, a sata raid1 > device). I use debian etch and xen 3.0 from debian repositories. > > > > Thank you! > > Tom Lobato > > > Sadique Puthen escreveu: >> Tom Lobato wrote: >>> >>> >>> Is it a good way to run common network services on dom0 >>> (proxy-cache, dababase), beyond manage domU''s ? >> >> As far as security is concerned, NO. Have them on domus >> >> --Sadique >> >>> >>> >>> >>> Tom Lobato >>> >>> _______________________________________________ >>> 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-usersHi, I think there is no optimazation method available for using windows with xen. The only thing which i heard is, that microsoft will do something for xen users. But I dont know when or what the consequences of the project will be. Maybe special windows versions or only some drivers..goodness knows :). Marcus -- Marcus Herz -------------------------------------------------------- IT-Infrastructure -------------------------------------------------------- Max-Planck-Institute for the physics of complex systems Nöthnitzer Straße 38 01187 Dresden Tel: 0351 / 871 2104 Fax: 0351 / 871 1999 Mail: marcus@mpipks-dresden.mpg.de -------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Artur Linhart - Linux communication
2007-Dec-07 19:08 UTC
RE: [Xen-users] Running network services on Dom0
Hello, If You want really to deliver the best performace, is it the issue to pay some hundreds of USD for the PV Windows drivers? I think this could be not so huge invest if somebody really wants to get the best performance... How heavy load do You plan to have on Windows machines, which kind of services do You want to have there? Also I have to note - there is a significant difference between the DomU started from the file and started from the block device, especially if You have no problem to dedicate a direct physical device to the DomU and not need the flexibility of LVM... We have some ORACLE servers runing on Windows in DomUs with w2k 32bit and w2k3 64bit, there is a small count of the clients but make really performance-intensive operations on the oracle servers, the servers are running together with other instances and this is at least OK for us... At least if You can arrange it so the virtual servers do not share the same physical disk.. With best regards Archie -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of marcus Sent: Wednesday, December 05, 2007 5:24 PM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] Running network services on Dom0 Tom Lobato schrieb:> > Hello Sadique, > > ok, I understand the security motivation. > With Linux really has no problem in running as domU, but I made some > tests with win2003 on xen and noted that free vmware server is faster. > So, I''m thinking about use vmware. I really would like to use Xen, > because it is real free software and I like so, but I must to deliver > best performance to my customer. > > I read about virtualization and para-virtualization. As I understood, > the full virtualization that Xen does with Windows is not yet so fast, > because it lacks free PV drivers. Is there any optimization to try? I''m > already running win2003 on a separate partition (/dev/sda6, a sata raid1 > device). I use debian etch and xen 3.0 from debian repositories. > > > > Thank you! > > Tom Lobato > > > Sadique Puthen escreveu: >> Tom Lobato wrote: >>> >>> >>> Is it a good way to run common network services on dom0 >>> (proxy-cache, dababase), beyond manage domU''s ? >> >> As far as security is concerned, NO. Have them on domus >> >> --Sadique >> >>> >>> >>> >>> Tom Lobato >>> >>> _______________________________________________ >>> 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-usersHi, I think there is no optimazation method available for using windows with xen. The only thing which i heard is, that microsoft will do something for xen users. But I dont know when or what the consequences of the project will be. Maybe special windows versions or only some drivers..goodness knows :). Marcus -- Marcus Herz -------------------------------------------------------- IT-Infrastructure -------------------------------------------------------- Max-Planck-Institute for the physics of complex systems Nöthnitzer Straße 38 01187 Dresden Tel: 0351 / 871 2104 Fax: 0351 / 871 1999 Mail: marcus@mpipks-dresden.mpg.de -------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users __________ Informace od NOD32 2704 (20071205) __________ Tato zprava byla proverena antivirovym systemem NOD32. http://www.nod32.cz _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Archie! Artur Linhart - Linux communication escreveu:> Hello, > > If You want really to deliver the best performace, is it the issue > to pay some hundreds of USD for the PV Windows drivers? I think this could > be not so huge invest if somebody really wants to get the best > performance... >I Agree. But it is not a big project (in terms of complexity and investment). The main goal of the server is to run a database (on linux). Since its hardware will be a little idle, I decided to virtualize (it`s my first virtualization install out of my test lab). So, some hundred USD for just a complement function of the server would not be the case.> How heavy load do You plan to have on Windows machines, which kind > of services do You want to have there? >In really, no much load on windows. I will run just one win2003 server for 3 or 4 clients to connect via terminal service and run office, browser and ERP. The database (firebird) and file server (samba) will run on Linux. Tom Lobato _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
the msg below was sended to me by Sadique, I post it here to the followers of the thread... Tom Lobato wrote:> > Hello Sadique, > > ok, I understand the security motivation. > With Linux really has no problem in running as domU, but I made some > tests with win2003 on xen and noted that free vmware server is faster. > So, I''m thinking about use vmware. I really would like to use Xen, > because it is real free software and I like so, but I must to deliver > best performance to my customer. > > I read about virtualization and para-virtualization. As I understood, > the full virtualization that Xen does with Windows is not yet so fast, > because it lacks free PV drivers. Is there any optimization to try?Currently none. Xen Enterprise has PV drivers for windows, but you have to purchase that from Citrix to use that. There is a work in progress to develop GPLed PV drivers for windows by the community, but I don''t know its current status. Till the time those drivers are available, the performance may not that much impressive, but I think it should be ok while comparing with VMware since VMware is another beast in crumbling performance. --Sadique> I''m already running win2003 on a separate partition (/dev/sda6, a sata > raid1 device). I use debian etch and xen 3.0 from debian repositories. > > > > Thank you! > > Tom Lobato > > > Sadique Puthen escreveu: >> Tom Lobato wrote: >>> >>> >>> Is it a good way to run common network services on dom0 >>> (proxy-cache, dababase), beyond manage domU''s ? >> >> As far as security is concerned, NO. Have them on domus >> >> --Sadique >> >>> >>> >>> >>> Tom Lobato >>> >>> _______________________________________________ >>> 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
Artur Linhart - Linux communication escreveu:> Hello, > > If You want really to deliver the best performace, is it the issue > to pay some hundreds of USD for the PV Windows drivers? I think this could > be not so huge invest if somebody really wants to get the best > performance... >effectively, how much would cost to use PV windows drivers? Is it present only in xensource enterprise? Citrix site shows:* "2-Socket Perpetual License ($2499) + Base Support ($500)"* for xen enterprise. Is there some cheaper xensource product which provides PV windows drivers? Tom Lobato _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Tom Lobato schrieb:> effectively, how much would cost to use PV windows drivers? > Is it present only in xensource enterprise? > > Citrix site shows:* > "2-Socket Perpetual License ($2499) + Base Support ($500)"* for xen > enterprise. > > Is there some cheaper xensource product which provides PV windows drivers?I''ve heard novell/suse are adding Windows PV drivers to their SuSE Enterprise Edition, but i''ve never used this distro so this is unconfirmed. Additionally, James Harper is currently developing Windows PV drivers under GPL. I don''t know the current state, but he has published different versions about 4-6 weeks ago on xen-user and xen-devel. Also XenServer Express Edition is shipped with Windows PV drivers, if you can live with it''s limitation (4 GB Ram / two CPU''s). btw. the opensource xen differs from XenServer Express. So, I don''t expect the XenServer Express Windows PV drivers will work under xen 3.1, also this would void the license. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users