Hello, I'm interested in an oss configuration where you have two heads that serve up the osts, with the osts split evenly among the two heads... but for each head to be able to take over for the other in case of its failure. We are using zfs for the back end, and the documentation seems to imply that there isn't anything different when using that as a back end. I'm curious if anyone else out there has experimented with such a setup (ost failover with a zfs back end), and what potential issues I might encounter. Respectfully, Kurt J. Strosahl System Administrator Scientific Computing Group, Thomas Jefferson National Accelerator Facility