On Mon, 2020-08-17 at 22:39 +0200, Jehan-Guillaume de Rorthais wrote: > On Mon, 17 Aug 2020 10:19:45 -0500 > Ken Gaillot <[email protected]> wrote: > > > On Fri, 2020-08-14 at 15:09 +0200, Gabriele Bulfon wrote: > > > Thanks to all your suggestions, I now have the systems with > > > stonith > > > configured on ipmi. > > > > A word of caution: if the IPMI is on-board -- i.e. it shares the > > same > > power supply as the computer -- power becomes a single point of > > failure. If the node loses power, the other node can't fence > > because > > the IPMI is also down, and the cluster can't recover. > > > > Some on-board IPMI controllers can share an Ethernet port with the > > main > > computer, which would be a similar situation. > > > > It's best to have a backup fencing method when using IPMI as the > > primary fencing method. An example would be an intelligent power > > switch > > or sbd. > > How SBD would be useful in this scenario? Poison pill will not be > swallowed by > the dead node... Is it just to wait for the watchdog timeout?
Right, I meant watchdog-only SBD. Although now that I think about it, I'm not sure of the details of if/how that would work. Klaus Wenninger might have some insight. -- Ken Gaillot <[email protected]> _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
