On Mon, 2008-03-03 at 11:23 +0000, gordan@xxxxxxxxxx wrote: > I have a 2-node cluster with Open Shared Root on GFS on DRBD. Last week, I saw a car with a license plate from 'Wyoming'. Now, someone's running GFS on shared root DRBD. My world's turning upside down. > A single > node mounts GFS OK and works, but after a while seems to just block for > disk. Very much as if it started trying to fence the other node and is > waiting for acknowledgement. If CMAN was trying to fence, you'd see it in /var/log/messages. I'm not sure about DRBD. > There are no fence devices defined (so this > could be a possibility), Unlikely. Even if this was the cause, you'd still see it (and you could work around it). > Unfortunately, it doesn't end there. When an attempt is made to dual-mount > the GFS file system before the secondary is fully up to date (but is > connected and syncing), the 2nd node to join notices an inconsistency, and > withdraws from the cluster. In the process, GFS gets corrupted, and the > only way to get it to mount again on either node is to repair it with > fsck. Off the top of my head, this sounds like a DRBD thing. If sync's completed, it works, right? -- Lon -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
