From LiD at cloudshield.com Tue Jan 17 12:48:54 2012 Content-Type: multipart/mixed; boundary="===============4493758351302404771==" MIME-Version: 1.0 From: Li, David To: users at ovirt.org Subject: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 09:48:50 -0800 Message-ID: --===============4493758351302404771== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable --_000_A0D5581BE022624487D06FF31DA39EAC46DBF15F82csmailcloudsh_ Content-Type: text/plain; charset=3D"us-ascii" Content-Transfer-Encoding: quoted-printable Hi, I am totally new to this. But what I am looking for is to run oVirt nod= =3D e on a diskless x86_64 server board. I have to pxeboot and then mount the i= =3D nitramfs as the final root file systems. No disk or NFS is allowed. Is this possible with the current release? David --_000_A0D5581BE022624487D06FF31DA39EAC46DBF15F82csmailcloudsh_ Content-Type: text/html; charset=3D"us-ascii" Content-Transfer-Encoding: quoted-printable

Hi, I am t= otally=3D new to this. But what I am looking for is to run oVirt node on a diskless = =3D x86_64 server board. I have to pxeboot and then mount the initramfs as the = =3D final root file systems. No disk or NFS is allowed.

Is this possible= wit=3D h the current release?

=3D

David

= &nbs=3D p;

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But what I am looking for is to run > oVirt node on a diskless x86_64 server board. I have to pxeboot and > then mount the initramfs as the final root file systems. No disk or > NFS is allowed. = > = > = > = > Is this possible with the current release? > = Currently, no, but it's an important feature that we're hoping to get in the next release or 2. Our current high level design is posted on the wiki [1]. There is also some effort going on by the archipel group to make ovirt-node stateless as well [2]. We certainly welcome feedback on the node-devel(a)ovirt.org mailing list or directly on the wiki. = Thanks Mike [1] http://ovirt.org/wiki/Node_Stateless [2] https://github.com/primalmotion/node > = > = > David > = > = > = > = > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --===============1059323367591817802==-- From LiD at cloudshield.com Tue Jan 17 13:07:19 2012 Content-Type: multipart/mixed; boundary="===============1731909511740586815==" MIME-Version: 1.0 From: Li, David To: users at ovirt.org Subject: Re: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 10:07:15 -0800 Message-ID: In-Reply-To: 1326823001.7241.17.camel@beelzebub.mburnsfire.net --===============1731909511740586815== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Mike, What is the timeframe we are looking at? In 3 months? Will this involve Dr= acut-only changes or much more? Thanks. David >-----Original Message----- >From: Mike Burns [mailto:mburns(a)redhat.com] >Sent: Tuesday, January 17, 2012 9:57 AM >To: Li, David >Cc: users(a)ovirt.org >Subject: Re: [Users] oVirt node in a diskless environment > >On Tue, 2012-01-17 at 09:48 -0800, Li, David wrote: >> Hi, I am totally new to this. But what I am looking for is to run >> oVirt node on a diskless x86_64 server board. I have to pxeboot and >> then mount the initramfs as the final root file systems. No disk or >> NFS is allowed. >> >> >> >> Is this possible with the current release? >> > >Currently, no, but it's an important feature that we're hoping to get in t= he >next release or 2. Our current high level design is posted on the wiki [1= ]. >There is also some effort going on by the archipel group to make ovirt-node >stateless as well [2]. We certainly welcome feedback on the node- >devel(a)ovirt.org mailing list or directly on the wiki. > >Thanks > >Mike > > >[1] http://ovirt.org/wiki/Node_Stateless >[2] https://github.com/primalmotion/node >> >> >> David >> >> >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users > --===============1731909511740586815==-- From mburns at redhat.com Tue Jan 17 13:20:27 2012 Content-Type: multipart/mixed; boundary="===============3397695869664908550==" MIME-Version: 1.0 From: Mike Burns To: users at ovirt.org Subject: Re: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 13:20:23 -0500 Message-ID: <1326824423.7241.21.camel@beelzebub.mburnsfire.net> In-Reply-To: A0D5581BE022624487D06FF31DA39EAC46DBF15F9A@cs-mail.cloudshield.com --===============3397695869664908550== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Tue, 2012-01-17 at 10:07 -0800, Li, David wrote: > Mike, > = > What is the timeframe we are looking at? In 3 months? Will this involve = Dracut-only changes or much more? > Thanks. The full feature described on that page is probably more in the 3-6 month time frame. The work that has been done for archipel will probably be merged earlier, but no set time frame for that yet either. The other issue is that there will probably need to be some changes made on the engine side to support a purely stateless/diskless node. I can't comment at all on timeframes for that though. = Mike > = > David > = > = > >-----Original Message----- > >From: Mike Burns [mailto:mburns(a)redhat.com] > >Sent: Tuesday, January 17, 2012 9:57 AM > >To: Li, David > >Cc: users(a)ovirt.org > >Subject: Re: [Users] oVirt node in a diskless environment > > > >On Tue, 2012-01-17 at 09:48 -0800, Li, David wrote: > >> Hi, I am totally new to this. But what I am looking for is to run > >> oVirt node on a diskless x86_64 server board. I have to pxeboot and > >> then mount the initramfs as the final root file systems. No disk or > >> NFS is allowed. > >> > >> > >> > >> Is this possible with the current release? > >> > > > >Currently, no, but it's an important feature that we're hoping to get in= the > >next release or 2. Our current high level design is posted on the wiki = [1]. > >There is also some effort going on by the archipel group to make ovirt-n= ode > >stateless as well [2]. We certainly welcome feedback on the node- > >devel(a)ovirt.org mailing list or directly on the wiki. > > > >Thanks > > > >Mike > > > > > >[1] http://ovirt.org/wiki/Node_Stateless > >[2] https://github.com/primalmotion/node > >> > >> > >> David > >> > >> > >> > >> > >> _______________________________________________ > >> Users mailing list > >> Users(a)ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/users > > > = > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --===============3397695869664908550==-- From pmyers at redhat.com Tue Jan 17 13:26:59 2012 Content-Type: multipart/mixed; boundary="===============5735907259936502811==" MIME-Version: 1.0 From: Perry Myers To: users at ovirt.org Subject: Re: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 13:26:55 -0500 Message-ID: <4F15BD6F.8000008@redhat.com> In-Reply-To: A0D5581BE022624487D06FF31DA39EAC46DBF15F9A@cs-mail.cloudshield.com --===============5735907259936502811== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 01/17/2012 01:07 PM, Li, David wrote: > Mike, > = > What is the timeframe we are looking at? In 3 months? Will this > involve Dracut-only changes or much more? Thanks. If you're willing to assist development of the feature by driving design or patches, it'll be quicker :) If you care about schedule, then help us push it along to meet your timelines Cheers, Perry --===============5735907259936502811==-- From LiD at cloudshield.com Tue Jan 17 14:24:59 2012 Content-Type: multipart/mixed; boundary="===============7934085162388969223==" MIME-Version: 1.0 From: Li, David To: users at ovirt.org Subject: Re: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 11:24:48 -0800 Message-ID: In-Reply-To: 4F15BD6F.8000008@redhat.com --===============7934085162388969223== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hmm, interesting.. 3 months is reasonable if we can get a prototype running= . Ideally I will need to fit the images into an embeded space less than 200= MB (it's my pxeboot server). = We are certainly interested in the feature and is willing to be part of it.= But where do we start? = Any suggestions from you guys that I can take back to my team? - David ________________________________________ From: Perry Myers [pmyers(a)redhat.com] Sent: Tuesday, January 17, 2012 10:26 AM To: Li, David Cc: Mike Burns; users(a)ovirt.org Subject: Re: [Users] oVirt node in a diskless environment On 01/17/2012 01:07 PM, Li, David wrote: > Mike, > > What is the timeframe we are looking at? In 3 months? Will this > involve Dracut-only changes or much more? Thanks. If you're willing to assist development of the feature by driving design or patches, it'll be quicker :) If you care about schedule, then help us push it along to meet your timelines Cheers, Perry --===============7934085162388969223==-- From pmyers at redhat.com Tue Jan 17 15:36:06 2012 Content-Type: multipart/mixed; boundary="===============5469883326041249505==" MIME-Version: 1.0 From: Perry Myers To: users at ovirt.org Subject: Re: [Users] oVirt node in a diskless environment Date: Tue, 17 Jan 2012 15:36:02 -0500 Message-ID: <4F15DBB2.1030906@redhat.com> In-Reply-To: A0D5581BE022624487D06FF31DA39EAC46DB301C84@cs-mail.cloudshield.com --===============5469883326041249505== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 01/17/2012 02:24 PM, Li, David wrote: > Hmm, interesting.. 3 months is reasonable if we can get a prototype > running. Ideally I will need to fit the images into an embeded space > less than 200MB (it's my pxeboot server). 200MB shouldn't be a problem, the oVirt Node ISO right now is around 150MB iirc. So you should be able to fit kernel/initrd for PXE server into 200MB > We are certainly interested in the feature and is willing to be part > of it. But where do we start? > Any suggestions from you guys that I can take back to my team? I think taking a look at what primalmotion has been doing with going stateless for archipel would be a good place to start, and then seeing how this could be generalized for use outside of archipel. Our original thinking on 'stateless oVirt Node' was that we would use: * some form of {PXE/DHCP/embedded USB stick with minimal config} to get just enough info to boot the system, get the mgmt network interface up and communicate to the mgmt server controlling the node * once you've got that done, the remainder of the configuration can be applied dynamically by the mgmt server (for example the oVirt Engine through vdsm) If you follow the above, this problem actually isn't too hard to solve, I don't think. Perry --===============5469883326041249505==--