On Wed, 2008-01-23 at 08:00 -0600, Brian Kroth wrote: > Barry Brimer <lists@xxxxxxxxxx>: > > As mentioned before, fencing is "pulling the plug" .. if fencing is set up > > correctly, the node will reboot and rejoin the cluster. > > Unless it's been simply IO fenced (unplugged from the shared storage). In > that case you'll need to reboot and verify its "live" status in the > cluster before you unfence it. In my experience though the node tends to > freak out if it's only been IO fenced and an unclean reboot is necessary > anyways. This has been my experience as well. In a (still running) circa 2002 Sistina GFS FC fenced cluster we're running (but moving off of), invariably after one node hangs, it's IO fenced, and I have to power-cycle it, and then typically one or two days later the whole cluster becomes unstable, and I have to reboot both nodes to clean things up. After that, typical uptime has been 100 - 150 days. > This is probably what you meant by "if fencing is setup > correctly" - both IO and Power fencing methods should be used. -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
