I have a physical server running SLES10SP3 and ZCM10.3.1. I'd like to run ZCM11 using the virtual appliance. How should I upgrade? I can think of a few methods:

1. install virtual appliance for 10.3.1; set it as the primary server; then upgrade in-place to zcm11 virtual appliance

2. upgrade existing ZCM server to ZCM11; install virtual appliance; set appliance as primary.

3. Install virtual appliance for ZCM11; set as primary

which would be better, or is there something else I'm missing? option 3 seems easiest, but would all existing bundles/etc. get moved over?