David, I am running Fedora64 11/KVM and LVM with a few virtual machines. One VM is Centos64 5.4 w/ Zimbra 6.06.0. I originally installed my Centos64 as 5.2 and Zimbra 6.00 Beta.
Originally Posted by hobleyd
The whole thing purrrrs. I chose Fedora64 11 over Ubuntu64 9.0 for my KVM machine because of hardware compatibility issues with my Adaptec Raid card. Otherwise I probably would be running Ubuntu today as my KVM. I also believe sticking with Centos or Redhat will keep you as safe as possible for hardware support. Other than that I was evaluating Fedora and Ubuntu because I was trying to get myself a more robust KVM than what was available at the time via Centos.
I consider myself a very aggressive maintainer, meaning that I install upgrades about 3 weeks after they have been released by the Zimbra team. This lets me watch what others go through after an upgrade and what I may have in store for myself.
I have worked through some bugs in Zimbra, and they always seem to get corrected along the way but if I could give anybody advice about upgrading these platforms I would suggest to always upgrade the OS then Zimbra in one shot - it will save you heartache. I must stress, in that order, upgrade the OS then upgrade Zimbra - never upgrade Zimbra then the OS. Of course you can upgrade just Zimbra.
One day I will probably change my Centos64 5.4 to Ubuntu64 10.4 for Zimbra
Guest Ubuntu 12.04LTS x64 and Zimbra 8.0.5
Host CentOS 6.4 x64 :: KVM :: LVM :: Hardware RAID