As we haven't performed large upgrades before, and this is production environment I would appreciate advise on the process.
one dell EQ SAN with about 50 VMs on it running iscsi SR.
three DELL servers with Xenserver 5.5 on it, running one pool and serving the 50 VMs. We have the full monty Xenserver license with HA etc.
we now want to move to Xenserver ver 6.0 in a controlled fashion on all three hosts to get more functionality and less bugs, without more than necessary downtime.
Has anyone done this and can share any experiences, tips etc for us to beware of?