I have a 4 node ESXi HA cluster. 3 of them are on 5.1 and I upgraded 1 of them to 5.5 in order to attempt to resolve an issue. I wanted to hold off on upgrading the other hosts to 5.5 until the U1 update in January. Are there any issues running a mix of 5.1 and 5.5 hosts in the same DRM/HA cluster?
In this FREE six-day email course, you'll learn from Janis Griffin, Database Performance Evangelist. She'll teach 12 steps that you can use to optimize your queries as much as possible and see measurable results in your work. Get started today!