On Fri, Apr 16, 2010 at 02:02:22PM -0300, Andre Nathan wrote:
> Hello
>
> I'm setting up a two-node active/active cluster with DRBD and OCFS2.
> When the nodes lose communication with one another, a split-brain
> happens, and both machines and up in the stand-alone/active state.
>
> One possible solution to minimize the amount of time where writes can be
> done to both nodes without synchronization would be to remount the
> filesystems as read-only with the split-brain hook. This, however, won't
> avoid inconsistencies with writes happening before the hook has a chance
> to run.
disk {
fencing resource-and-stonith;
# this mode implicitly freezes IO and only resumes IO if peer is
# successfully fenced as reported by the fence peer script.
# Or if the admin explicitly resumes io.
}
handler {
fence-peer "some script that kills the other node";
}
--
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com
DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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