A tiny bit of background.. new VM server running ESXi 5.1. I had done a Physical to Virtual conversion on company's soon to be retired SBS 2008 server. I was slated today to setup a new SBS server on the same datastore, and to do the migration. My coworker took it upon himself to virtualize two of the other servers during the week leaving me with just 500gb for the entire 2011 sbs migration. Which leads me to my question.
Assuming that I perform all migration operations, and demote the old server literally to the point I would be turning it off, could I theoretically then disassociate that VM file from the virtual machine, and add it to my new 2011 SBS VM as a 2nd disk. Then delete the C partition, and simply "re-use" the data portion of it on the new server.
I couldn't care less about the old server at that point, the only thing I would need on it is literally its D: (Data) drive. The partition contains nothing but raw data, pictures, videos, user files, etc.
It would take me about 19 hours to copy all of that data off onto the NAS then copy it back after i delete the old server and partition that space as a new/blank separate disk for the SBS2011 VM. Theoretically in my mind it should work, but I'm really new to VM so I thought i'd ask the experts whether or not my shortcut would work.