The node doing the ro mount is a full member of the cluster. Yes, it will participate in cluster activities including replaying a dead node's journal, etc. So it is not the spectator node that gfs2, I believe, has. I've never quite understood how a spectator node can maintain cache coherencies.... other than by disabling all caches and hitting disk on every read. Not sure if gfs2 does that or what level of coherency it guarantees the user.
On Dec 6, 2009, at 9:14 AM, Billy <lfl200...@yahoo.com> wrote: > Thank you Sunil! > > Is there any difference in setup for a ro node vs. rw nodes? In > other words, will a ro node be a member of the cluster and sending/ > receiving heartbeat? I would image a ro node should not affect the > cluster in any way should the node fail/crash, but I am not sure if > it is correct. > > Billy > > --- On Fri, 12/4/09, Sunil Mushran <sunil.mush...@oracle.com> wrote: > >> From: Sunil Mushran <sunil.mush...@oracle.com> >> Subject: Re: [Ocfs2-users] mixed mode mount options? >> To: "Billy" <lfl200...@yahoo.com> >> Cc: ocfs2-users@oss.oracle.com >> Date: Friday, December 4, 2009, 5:11 PM >> Billy wrote: >>> Does anyone know if OCFS2 supports mixed mounts? >> We have 4-node OCFS2 cluster, is it possible for one node to >> mount read only and the other 3 nodes mount -rw on a same >> volume? >>> >> >> Sure. >> > > > _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
