Kerry Herschel wrote:
Can you upgrade one side and bring it up running a different DOT version from it's partner? And then have it takeover the partner, then down the partner to upgrade it?
I always upgrade DOT to the same version on both heads of a cluster at the same time, and reboot them both a the same time. depending on your config, a DOT upgrade causes a 90 - 180 second outage for the reboot.
-skottie