> -----Original Message----- > From: [email protected] [mailto:linux-ha- > [email protected]] On Behalf Of Hell, Robert > Sent: Thursday, 22 January 2009 9:33 PM > To: [email protected] > Subject: [Linux-HA] Two-node clusters in split-sites > > Hi, > > > > we are planning to run multiple two-node clusters (with different > functions: database cluster, samba cluster, ...) in two different sites > with a fast, but unreliable network connections. All cluster nodes > replicate data with drbd. > > I'm specially afraid of split-brain in this scenario because reliable > fencing is not possible in this split-site situation.
Definitely get dopd working with DRBD/HA. On loss of DRBD connectivity the secondary node will be marked as 'outdated', this will stop HA from promoting it to primary which could happen in a split brain scenario. > > > > After investigating multiple cluster solutions I think Linux-HA is the > only project which provides a solution for our problem. We want to use > Linux-HA with one cluster node in each site and an external quorum > server (as described in the Heartbeat tutorial) without fencing. > > Has anyone experiences with a solution like this and is this a solutions > which should work, is "supported" and is worth further investigations? > And last but not least: is it possible to run one quorum server for > multiple clusters (as mentioned before we have multiple two-node > clusters, but I only want to run one quorum server). > > > > Many thanks and kind regards, > > Robert > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > > __________ Information from ESET Smart Security, version of virus > signature database 3789 (20090122) __________ > > The message was checked by ESET Smart Security. > > http://www.eset.com > __________ Information from ESET Smart Security, version of virus signature database 3791 (20090122) __________ The message was checked by ESET Smart Security. http://www.eset.com _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
