On Sat, 25 Feb 2012, Daniel Pittman <daniel@rimspace.net> wrote:
Adjust the behaviour settings in drbd.conf around split brain; they have a bunch of configuration choices. See the "handlers" in the manual for the situations and responses.
What does drbd consider to be a split brain situation? root@nodeb# iptables -A OUTPUT -d $NODEA -j DROP I've setup a couple of nodes running under Xen. I ran the above command and since then I've had write commands on the ext4 filesystem mounted on nodea block, and I'm seeing lots of messages like the following in the kernel message log on nodea: [ 1831.024174] block drbd0: [drbd0_worker/844] sock_sendmsg time expired, ko = 4294967162 After 960 seconds (and some kernel panics from the ext4 code) it restarted itself. It seems that netfilter isn't catching all kernel generated packets because it managed to synchronise again. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/