On 2015/10/07, 6:54 AM, "HPDD-discuss on behalf of Kurt Strosahl"
<hpdd-discuss-bounces(a)lists.01.org on behalf of strosahl(a)jlab.org> wrote:
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
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
You definitely need to have reliable power control (STONITH) of the OSS
nodes using your HA scripts. Otherwise, there is the potential for ZFS to
mount the same filesystem on both nodes at the same time and severely
corrupt the filesystem.
Lustre Software Architect
Intel High Performance Data Division