Mit freundlichen Grüßen > On 11/03/2008, Paul Court <[EMAIL PROTECTED]> wrote: > > Do you have a secondary communication line for heartbeat? Like a searial > > cable or crossover network cable. If so then you need to look into dopd. > > By using dopd one node can tell the other that it has been outdated > > using heartbeats secondary communication channel. > > I do now. But I don't see much in the way of howto's or wiki entries > for either the heartbeat peer outdater or the one with drbd. Are there > any good docs on how it works and suchlike?
Here's something to read about dopd: http://blogs.linbit.com/florian/2007/10/01/an-underrated-cluster-admins-companion-dopd/ > > Then, yes, you need some sort of pingd based rule so that the node that > > has lost its network connections knows it is in a weaker state than the > > other one. > > I'm assuming dopd would need pingd to tell it whether it's the weaker > machine? I'm assuming I can do the whole dopd thing through crm as > with pingd? These are 2 differnt things: dopd is for outdating the secondaries DRBD-resources in case of DRBD split-brain, which is not the same as Heartbeat split-brain. It only works, if there are Heartbeat-lines which are different from DRBD-connection. Pingd is for checking connectivity to other ping nodes (such as routers or switches) and maybe to switch the resources in case that other cluster-nodes have better connectivity Regards Florian > > Thanks > Guy > > -- > Don't just do something...sit there! > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
