[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [ANNOUNCE] Remus source released
On Tuesday, 31 March 2009 at 21:42, Brendan Cully wrote: > Hi all, > > I'm happy to finally release Remus into the wild: > > http://dsg.cs.ubc.ca/remus/ > > >From the web site: > --- > Remus provides transparent, comprehensive high availability to > ordinary virtual machines running on the Xen virtual machine > monitor. It does this by maintaining a completely up-to-date copy of a > running VM on a backup server, which automatically activates if the > primary server fails. Key features: > > * The backup VM is an exact copy of the primary VM. When failure > happens, it continues running on the backup host as if failure had > never occurred. > * The backup is completely up-to-date. Even active TCP sessions are > maintained without interruption. > * Protection is transparent. Existing guests can be protected > without modifying them in any way. > --- > > The NSDI paper at http://dsg.cs.ubc.ca/remus/papers/remus-nsdi08.pdf > contains plenty of gore about how it works, and the source has even > more. > > This is an RFC release, meant to start a discussion on how it might be > merged with Xen and Kemari. It is not by any means in shape for > application to the Xen tree -- right now it is optimized to be easy to > port rather than elegant. > > This is an old, but fairly stable, release against Xen 3.2, and it > lacks HVM support. I hope to release a more up-to-date, HVM-capable > version soon, but the port is not yet complete -- maintaining > synchronized patches between ioemu and the rest of the tool stack has > become quite challenging since it switched to an external git > repository, and we're currently a bit short on manpower. I've refreshed Remus to the tip of xen-unstable. I haven't yet completed the HVM port, nor tested it on 64-bit dom0, but I'd encourage anyone interested in Remus and also running 32-bit PV to try it out. Feedback is welcome. -b _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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