Hi, On Fri, Dec 14, 2007 at 01:49:03PM +0100, Miguel Araujo wrote: > Hello all, > > I'm making some tests using XEN 3.1. Now I have a machine exporting > iSCSI blocks (could be considered a SAN) devices to several dom0s that > run different machines. After making some live migrations I would like > to automate the process for being able to offer High Availability. What > I want to do is find a way to heartbeat machines in a ring structure, so > that if a machine crashes the one that is "pinging" will be able to cope > with its work temporarily till replacement. I've been reading for a > while about HA on linux machines, but I don't find a solution for this. > Let me explain it easily: > > I need some sort of daemon that detects if the other host is down and > let me execute a custom script to live migrate machines. Heartbeat, > Keepalive or ucarp, as far as I know, don't do this. They first detect > when the host is down and after they activate a virtual IP address. If > the service that they make HA is stateless, let's say DNS, you don't > need to do any syncing between disk, if it is a Database you have to do > DRBD.
Take a look at the new Xen RA. I think that it also enables DomU migration. Thanks, Dejan > The issue here is that the storing is distributed, so I don't have to > sync block devices. Is there a way to configure one of these services to > be able to let me execute what I want? If there is I haven't been able > to find it. > > Does anyone know what open software solution could be used to do HA this > way? > > Thank you very much in advanced for your time and effort, Regards > > Miguel Araujo > > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems -- Dejan _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
