To change this savely you need more heartbeat restarts as you thought: a) activate mcast for bond0 and eth3 on server1/restart heartbeat b) make the same thing on the other server2 ---> now both servers use bond0 c) now deactivate eth3 on server1/restart d) same for server2
If you peform also device changes (means eth3 is used by bond0) you can not do the change without a short down time (but what would be minmal) a) on server1: stop heartbeat, change configuration from eth3 to bond0 b) on server2: stop heartbeat and wait until it is stopped c) on server1: start heartbeat as soon heartbeat is down on server2 d) on server2: change configuration and restart heartbeat I think it is save to assume that your downtime just increaeses by heartbeat's startup delay. On Thursday 19 July 2007, Sebastian Vieira wrote: > Hi, > > I'm in the process of adding back the backup node, which i took offline > because of maintenance. I had to modify ha.cf so that it now looks like > this: > > udpport 694 > logfacility local0 > keepalive 200ms > deadtime 3 > warntime 1 > initdead 120 > mcast bond0 224.1.1.10 694 1 0 > #mcast eth3 224.1.1.10 694 1 0 > auto_failback off > node rpzlvs01 rpzlvs02 > > Note the commented line. I want to switch back from bond0 to eth3, but > preferably without losing connections. If i bring the backup-node online > with the 'new' settings (mcast on eth3) i won't be able to do a failover > since both interfaces are on a separate vlan. I can imagine if i change it > on the running/active node, these changes won't be in effect until i restart > heartbeat. > > Is there another way, or do i really have to bring the entire thing down, > change settings, and then bring it back up again? > > I'm running heartbeat-1.2.5 with ldirectord (latest) for LVS. > > kind regards, > > Sebastian > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > -- Max Hofer APUS Software G.m.b.H. A-8074 Raaba, Bahnhofstraße 1/1 T| +43 316 401629 11 F| +43 316 401629 9 W| www.apus.co.at E| [EMAIL PROTECTED] _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
