Miles Fidelman
2007-Nov-24 15:58 UTC
[Xen-users] moving from non-xen environment -> xen environment
Hi Folks, I''ve been thinking of trying to migrate a production environment, that''s currently running on Debian Sarge, to a xen DomU - sort of slipping Xen under an existing installation, if you will. The motivation is to gain a bit more flexibility in using two low-volume servers - where one is now being used for production, the other for development. I''d sort of like to move to an environment where I can: - continue to use one server as a primary product server - use the 2nd machine to backup the first, and as a development/staging environment This suggests: - use Xen on both machines - run a single DomU on the primary machine, providing production services - configure a DomU on the 2nd machine to provide hot-spare backup (using DRBD and hearbeat), albeit with reduced performance - do development in a DomU on the 2nd machine - snapshot the production environment, then develop, and install by migration (albeit with some details on synchronizing data before migration still to be worked out) It seems like the first step, though, is to slip a Xen Dom0 under my running production environment. So.... any experience/suggestions on how to do this as painlessly as possible? Comments on the general idea are welcome as well. Thanks much, Miles _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Henning Sprang
2007-Nov-25 01:34 UTC
Re: [Xen-users] moving from non-xen environment -> xen environment
Miles Fidelman wrote:> [...] > So.... any experience/suggestions on how to do this as painlessly as > possible? Comments on the general idea are welcome as well.- Debian sarge doesn''t have a libc good for Xen - the "good old lib TLS problem". Better go to Etch and use libc6-xen - for dom0 and domU. - Google Ganeti is an interesting tool for managing mirrored systems with drbd, and makes this easy to setup within minutes. No heartbeat integration(yet?!), and failover is always with a little bit of downtime, as they don''t do live migration less than a minute in my tests. Henning _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users