On 2013-11-20T09:45:54, Andrey Groshev <gre...@yandex.ru> wrote: > > A "fence" request is executed when a node is deemed to be in an > > untrustworthy state - when a stop has failed, or when a network error > > occurs. Note that in the last case, login via ssh is obviously no longer > > possible at all. > In last case the node conditional fenced. )
No. It may experience network trouble, it may be the local node having the network problem, or it could still corrupt the shared storage. > As I understand it, under the "fence" all you mean "power off" node or > disconnect it from a network. Yes? No. It must be stopped from interfering with any shared resources (network (ARP cache), storage) as well as further diverging on its local storage in a way that is hard/impossible to resync later. (Such as continuing to accept and acknowledge transactions.) Regards, Lars -- Architect Storage/HA SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg) "Experience is the name everyone gives to their mistakes." -- Oscar Wilde _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org