Check something like [community version] ProxMox <http://proxmox.com/> great way to administer your KVMs
/Steffen > On 7. dec. 2015, at 18.35, Lentes, Bernd <bernd.len...@helmholtz-muenchen.de> > wrote: > > Hi, > > i've been asking all around here a while ago. Unfortunately I couldn't > continue to work on my cluster, so I'm still thinking about the design. > I hope you will help me again with some recommendations, because when the > cluster is running changing of the design is not possible anymore. > > These are my requirements: > > - all services are running inside virtual machines (KVM), mostly databases > and static/dynamic webpages > - I have two nodes and would like to have some vm's running on node A and > some on node B during normal operation as a kind of loadbalancing > - I'd like to keep the setup simple (if possible) > - availability is important, performance not so much (webpages some > hundred requests per day, databases some hundred inserts/selects per day) > - I'd like to have snapshots of the vm's > - live migration of the vm's should be possible > - nodes are SLES 11 SP4, vm's are Windows 7 and severable linux > distributions (Ubuntu, SLES, OpenSuSE) > - setup should be extensible (add further vm's) > - I have a shared storage (FC SAN) > > My ideas/questions: > > Should I install all vm's in one partition or every vm in a seperate > partition ? The advantage of one vm per partition is that I don't need a > cluster fs, right ? > I read to avoid a cluster fs if possible because it adds further > complexity. Below the fs I'd like to have logical volumes because they are > easy to expand. > Do I need cLVM (I think so) ? Is it an advantage to install the vm's in > plain partitions, without a fs ? > It would reduce the complexity further because I don't need a fs. Would > live migration still be possible ? > > snapshots: > I was playing around with virsh (libvirt) to create snapshots of the vm's. > In the end I gave up. virsh explains commands in its help, but when you > want to use them you get messages > like "not supported yet", although I use libvirt 1.2.11. This is > ridiculous. I think I will create my snapshots inside the vm's using lvm. > We have a network based backup solution (Legato/EMC) which saves the disks > every night. > Supplying a snapshot for that I have a consistent backup. The databases > are dumped with their respective tools. > > Thanks in advance. > > > Bernd > > -- > Bernd Lentes > > Systemadministration > institute of developmental genetics > Gebäude 35.34 - Raum 208 > HelmholtzZentrum München > bernd.len...@helmholtz-muenchen.de > phone: +49 (0)89 3187 1241 > fax: +49 (0)89 3187 2294 > > Wer Visionen hat soll zum Hausarzt gehen > Helmut Schmidt > > > > Helmholtz Zentrum Muenchen > Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) > Ingolstaedter Landstr. 1 > 85764 Neuherberg > www.helmholtz-muenchen.de > Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe > Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons > Enhsen > Registergericht: Amtsgericht Muenchen HRB 6466 > USt-IdNr: DE 129521671 > > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org
_______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org