Hi * Before putting my hands on the subject, thought on asking b4 to not waist time. Imagine the following situation. You want to give a tutorial about virtualization to a couple of students (or people in the lab wanting to learn), and do not want them to screw up your dom0. My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB RAM per vcpu). Then, I can give to the students the root passwd for this domU, and they can start to build some VM''s inside of it. Is this idea feasible? Cheers, Nuno _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi * Before putting my hands on the subject, thought on asking b4 to not waist time. Imagine the following situation. You want to give a tutorial about virtualization to a couple of students (or people in the lab wanting to learn), and do not want them to screw up your dom0. My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB RAM per vcpu). Then, I can give to the students the root passwd for this domU, and they can start to build some VM''s inside of it. Is this idea feasible? Cheers, Nuno -- =============================================Nuno Ricardo Santos Loureiro da Silva Ferreira NMR Spectroscopy Research Group Bijvoet Center for Biomolecular Research Utrecht University Bloembergen gebouw Padualaan 8, 3584 CH Utrecht The Netherlands P: +31.(0)30.253 9932 F: +31.(0)30.253 2652 E: n.l.ferreira@uu.nl W: http://nmr.chem.uu.nl ============================================= _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Fri, Feb 6, 2009 at 10:23 PM, Ferreira, N. L. (Nuno) <n.l.ferreira@uu.nl> wrote:> My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB > RAM per vcpu). > Then, I can give to the students the root passwd for this domU, and they can > start to build some VM''s inside of it. > Is this idea feasible?No. You PROBABLY can : - have a normal linux kernel running - install virtualbox or vmware - create virtualbox/vmware linux guests with 2 CPU (or whatever max cpu it can give) and 2GB ram - give students password to virtualbox guests - install Xen with PV domU on virtualbox guests. HVM is not possible. Regards, Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Fri, Feb 6, 2009 at 10:29 AM, Fajar A. Nugraha <fajar@fajar.net> wrote:> On Fri, Feb 6, 2009 at 10:23 PM, Ferreira, N. L. (Nuno) > <n.l.ferreira@uu.nl> wrote: >> My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB >> RAM per vcpu). >> Then, I can give to the students the root passwd for this domU, and they can >> start to build some VM''s inside of it. >> Is this idea feasible? > > > No. > > You PROBABLY can : > - have a normal linux kernel running > - install virtualbox or vmware > - create virtualbox/vmware linux guests with 2 CPU (or whatever max > cpu it can give) and 2GB ram > - give students password to virtualbox guests > - install Xen with PV domU on virtualbox guests. HVM is not possible.there are some experiments with KVM over KVM, once that get stable it might be possible to do more Xen on KVM, eventually HVM would be possible -- Javier _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Nuno, Am Freitag, den 06.02.2009, 16:23 +0100 schrieb Ferreira, N. L. (Nuno):> Hi * > > Before putting my hands on the subject, thought on asking b4 to not > waist time. > > Imagine the following situation. > You want to give a tutorial about virtualization to a couple of students > (or people in the lab wanting to learn), and do not want them to screw > up your dom0.you are searching for openqrm and want to let your students boot their dom0s over LAN. So in openqrm you prepare _one_ image and every students works on a snapshot of this, so they cant destroy your systems. http://www.openqrm.com Give it a try - you will love it ;) Thomas> > My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 > GB RAM per vcpu). > Then, I can give to the students the root passwd for this domU, and they > can start to build some VM''s inside of it. > Is this idea feasible? > > Cheers, > Nuno > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Fri, Feb 6, 2009 at 7:23 AM, Ferreira, N. L. (Nuno) <n.l.ferreira@uu.nl>wrote:> Hi * > > Before putting my hands on the subject, thought on asking b4 to not waist > time. > > Imagine the following situation. > You want to give a tutorial about virtualization to a couple of students > (or people in the lab wanting to learn), and do not want them to screw up > your dom0. > > My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB > RAM per vcpu). > Then, I can give to the students the root passwd for this domU, and they > can start to build some VM''s inside of it. > Is this idea feasible? > > Cheers, > Nuno > > > -- > =============================================> Nuno Ricardo Santos Loureiro da Silva Ferreira > > NMR Spectroscopy Research Group > Bijvoet Center for Biomolecular Research > Utrecht University > Bloembergen gebouw > Padualaan 8, 3584 CH Utrecht > The Netherlands > > P: +31.(0)30.253 9932 > F: +31.(0)30.253 2652 > E: n.l.ferreira@uu.nl > W: http://nmr.chem.uu.nl > =============================================I''ve not set it up yet but I''d been wanting to do this before with my classes and the answer I got was to create all the initial DomUs for the students as HVM. Then you can put PV DomUs inside it. Like I said I haven''t tried it but people in the know said it was possible. You will of course need to have the correct VT hardware to do HVM on your machine. Grant McWilliams Some people, when confronted with a problem, think "I know, I''ll use Windows." Now they have two problems. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Fri, Feb 6, 2009 at 10:22 PM, Nuno Loureiro Ferreira <nunolf@gmail.com> wrote:> My idea was to create a domU with enough resources (say, 6 vcpu''s and 2 GB > RAM per vcpu). > Then, I can give to the students the root passwd for this domU, and they can > start to build some VM''s inside of it. > Is this idea feasible?A similar question was on the list several times. The general answer would be "yes", provided that : - your system supports running HVM guest - you give students access to HVM guest - students can only create PV guests If your system does not support HVM guest you may be able to get similar result using Virtualbox or Vmware. Whether or not the performance is acceptable is another matter though, so you should try it yourself. Regards, Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users