Ronaldo C. A. Chaves
2010-Aug-25 12:32 UTC
[Xen-users] Xen version for production environment.
Hi all, what is the most stable version of xen and kernel for a production environment? Regards, Ronaldo. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Fajar A. Nugraha
2010-Aug-25 12:52 UTC
Re: [Xen-users] Xen version for production environment.
On Wed, Aug 25, 2010 at 7:32 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> wrote:> Hi all, > > what is the most stable version of xen and kernel for a production > environment?Most stable? IMHO that would be RHEL/Centos version, with its bunded Xen. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ronaldo C. A. Chaves
2010-Aug-25 12:56 UTC
Re: [Xen-users] Xen version for production environment.
Yes, Xen 3.4.3 or Xen 4.0.0? Kernel 2.6.18-8 or 2.6.31/2.6.32? Ronaldo. 2010/8/25 Fajar A. Nugraha <fajar@fajar.net>> On Wed, Aug 25, 2010 at 7:32 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> > wrote: > > Hi all, > > > > what is the most stable version of xen and kernel for a production > > environment? > > Most stable? > IMHO that would be RHEL/Centos version, with its bunded Xen. > > -- > Fajar >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
David Markey
2010-Aug-25 12:59 UTC
Re: [Xen-users] Xen version for production environment.
I would use XCP or XenServer. On 25 August 2010 13:56, Ronaldo C. A. Chaves <xarqui@gmail.com> wrote:> Yes, Xen 3.4.3 or Xen 4.0.0? > Kernel 2.6.18-8 or 2.6.31/2.6.32? > > Ronaldo. > > 2010/8/25 Fajar A. Nugraha <fajar@fajar.net> > > On Wed, Aug 25, 2010 at 7:32 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> >> wrote: >> > Hi all, >> > >> > what is the most stable version of xen and kernel for a production >> > environment? >> >> Most stable? >> IMHO that would be RHEL/Centos version, with its bunded Xen. >> >> -- >> Fajar >> > > > _______________________________________________ > 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
Fajar A. Nugraha
2010-Aug-25 13:11 UTC
Re: [Xen-users] Xen version for production environment.
On Wed, Aug 25, 2010 at 7:56 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> wrote:> Yes, Xen 3.4.3 or Xen 4.0.0? > Kernel 2.6.18-8 or 2.6.31/2.6.32?None of them. You asked for the one most stable. RHEL5 currently comes with its own version of Xen, based on well-tested Xen 3.1.2 plus lots of RH patches. It''s kernel is based on 2.6.18, but also with lots of RH patches so it has some newer kernel features (like ext4). Redhat actively maintain this version to have the latest security and bug fix for the life time of RHEL5, and it works great for common uses (with Windows/Linux domUs). That being said, If you use some kind of domU (like Solaris or opensolaris), you might need newer Xen version. For this purpose you can install a packaged version of Xen 3.4.3 for RHEL from http://www.gitco.de/repo/ that should just work. Xen 4.0 and pv_ops kernel (based on 2.6.32) or Suse xen kernel (2.6.34) has more features (like blktap2), but it''s also not as well-tested, so you might find some bugs here and there. Personally I have a dev system with RHEL5/Xen-4.0/2.6.34 kernel + http://code.google.com/p/gentoo-xen-kernel/downloads/detail?name=xen-patches-2.6.34-1.tar.bz2&can=2&q If you don''t want to bother with dom0 OS selection, you could go down XenServer and XCP (the dev version) path, like David suggested. -- Fajar> > Ronaldo. > > 2010/8/25 Fajar A. Nugraha <fajar@fajar.net> >> >> On Wed, Aug 25, 2010 at 7:32 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> >> wrote: >> > Hi all, >> > >> > what is the most stable version of xen and kernel for a production >> > environment? >> >> Most stable? >> IMHO that would be RHEL/Centos version, with its bunded Xen. >> >> -- >> Fajar > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ronaldo C. A. Chaves
2010-Aug-25 13:29 UTC
Re: [Xen-users] Xen version for production environment.
Fajar, thanks for the very good explanation. But if I want to use Debian Lenny with Xen 4.0.0 and kernel 2.6.18-8 would be a good choice for a production environment? Ronaldo. 2010/8/25 Fajar A. Nugraha <fajar@fajar.net>> On Wed, Aug 25, 2010 at 7:56 PM, Ronaldo C. A. Chaves <xarqui@gmail.com> > wrote: > > Yes, Xen 3.4.3 or Xen 4.0.0? > > Kernel 2.6.18-8 or 2.6.31/2.6.32? > > None of them. > > You asked for the one most stable. RHEL5 currently comes with its own > version of Xen, based on well-tested Xen 3.1.2 plus lots of RH > patches. It''s kernel is based on 2.6.18, but also with lots of RH > patches so it has some newer kernel features (like ext4). Redhat > actively maintain this version to have the latest security and bug fix > for the life time of RHEL5, and it works great for common uses (with > Windows/Linux domUs). > > That being said, If you use some kind of domU (like Solaris or > opensolaris), you might need newer Xen version. For this purpose you > can install a packaged version of Xen 3.4.3 for RHEL from > http://www.gitco.de/repo/ that should just work. > > Xen 4.0 and pv_ops kernel (based on 2.6.32) or Suse xen kernel > (2.6.34) has more features (like blktap2), but it''s also not as > well-tested, so you might find some bugs here and there. Personally I > have a dev system with RHEL5/Xen-4.0/2.6.34 kernel + > > http://code.google.com/p/gentoo-xen-kernel/downloads/detail?name=xen-patches-2.6.34-1.tar.bz2&can=2&q> > If you don''t want to bother with dom0 OS selection, you could go down > XenServer and XCP (the dev version) path, like David suggested. > > -- > Fajar > > > > > Ronaldo. > > > > 2010/8/25 Fajar A. Nugraha <fajar@fajar.net> > >> > >> On Wed, Aug 25, 2010 at 7:32 PM, Ronaldo C. A. Chaves <xarqui@gmail.com > > > >> wrote: > >> > Hi all, > >> > > >> > what is the most stable version of xen and kernel for a production > >> > environment? > >> > >> Most stable? > >> IMHO that would be RHEL/Centos version, with its bunded Xen. > >> > >> -- > >> Fajar > > > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> From: xen-users-bounces@lists.xensource.com[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ronaldo C. A. Chaves> Sent: Wednesday, August 25, 2010 9:30 AM > To: Fajar A. Nugraha > Cc: xen-users@lists.xensource.com > Subject: Re: [Xen-users] Xen version for production environment.> But if I want to use Debian Lenny with Xen 4.0.0 and kernel 2.6.18-8would be a good choice for a production environment? For my .02, I wouldn''t try it. Pick a dom0 known to work--RHEL, CentOS, XCP, XenServer--whichever--then run whatever you want as a domU. Avoid the hassle of trying to match up dom0 with your favorite Linux distribution. If Debian supports Xen on dom0 and tells you it works, go for it--but the last I looked, the Debian folks aren''t trying hard to support Xen as a dom0. -Jeff _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Grant McWilliams
2010-Aug-25 18:02 UTC
Re: [Xen-users] Xen version for production environment.
On Wed, Aug 25, 2010 at 10:18 AM, Jeff Sturm <jeff.sturm@eprize.com> wrote:> > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ronaldo C. > A. Chaves > > Sent: Wednesday, August 25, 2010 9:30 AM > > To: Fajar A. Nugraha > > Cc: xen-users@lists.xensource.com > > Subject: Re: [Xen-users] Xen version for production environment. > > > But if I want to use Debian Lenny with Xen 4.0.0 and kernel 2.6.18-8 > would be a good choice for a production environment? > > For my .02, I wouldn''t try it. Pick a dom0 known to work--RHEL, CentOS, > XCP, XenServer--whichever--then run whatever you want as a domU. > > Avoid the hassle of trying to match up dom0 with your favorite Linux > distribution. If Debian supports Xen on dom0 and tells you it works, go > for it--but the last I looked, the Debian folks aren''t trying hard to > support Xen as a dom0. > > -Jeff > >Agreed. People get all wound up about Dom0 but how many Dom0''s do you have in relation to DomU''s? You won''t spend much time "managing" your Dom0. The XCP manual actually says to leave it alone and don''t install extra software or change anything. You bring it up, keep it secure and just leave it alone. You can run anything as a DomU which is the OS you''ll be using the most. Grant McWilliams _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Aug 25, 2010 at 11:02 AM, Grant McWilliams < grantmasterflash@gmail.com> wrote:> On Wed, Aug 25, 2010 at 10:18 AM, Jeff Sturm <jeff.sturm@eprize.com>wrote: > >> > From: xen-users-bounces@lists.xensource.com >> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ronaldo C. >> A. Chaves >> > Sent: Wednesday, August 25, 2010 9:30 AM >> > To: Fajar A. Nugraha >> > Cc: xen-users@lists.xensource.com >> > Subject: Re: [Xen-users] Xen version for production environment. >> >> > But if I want to use Debian Lenny with Xen 4.0.0 and kernel 2.6.18-8 >> would be a good choice for a production environment? >> >> For my .02, I wouldn''t try it. Pick a dom0 known to work--RHEL, CentOS, >> XCP, XenServer--whichever--then run whatever you want as a domU. >> >> Avoid the hassle of trying to match up dom0 with your favorite Linux >> distribution. If Debian supports Xen on dom0 and tells you it works, go >> for it--but the last I looked, the Debian folks aren''t trying hard to >> support Xen as a dom0. >> >> -Jeff >> >> > Agreed. People get all wound up about Dom0 but how many Dom0''s do you have > in relation to DomU''s? You won''t spend much time "managing" your Dom0. > The XCP manual actually says to leave it alone and don''t install extra > software or change anything. You bring it up, keep it secure and just leave > it alone. > You can run anything as a DomU which is the OS you''ll be using the most. > > > Grant McWilliams > > > While this is true for the majority of cases, that is IT serverconsolidation, it''s not for embedded systems. It''s not uncommon now for developers to use Xen as a means of consolidating multiple symbiotic platforms into one chassis and slapping a new badge on it with a single pane of glass UI for the customer. In fact we''re developing a Windows/debian box that combines a number of services that all looks like one system to the user. This requires that we have drivers on dom0 for chassis mgmt and other supervisory services. In this case, it seems that one does need to concern oneself with impedance matching between dom0 Linux version and Xen, as the dom0 is an integrated component of the overall system. Not that this affects the recommendations made to the original poster, but I wanted to speak up for the embedded developers that have a completely different view of what Xen is for and how it''s used. -Bruce _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users