Ok so I finally got HA/GFS2 nodes at work. I'm getting a lot of mileage out of the licenses I was allowed to use, more than I expected. First of all, a RH "unit" actually counts as one half when ran as virtual machines. This enabled me to run a 6-pack stack consisting of 2 routers (keepalive/haproxy), 2 fileservers (GFS2), and 2 PGSQL (Active/Passive nodes).
Today I discovered that the RH Resilient Storage (GFS2) license already includes HA (pacemaker) license. I called RH support to verify and make sure. So, I can take that license and build corosync Q devices. Our 2-node clusters are going to be upgraded with Q devices.
It is a nice day.
