I have a virtualized 2008 R2 file server running DFS and using ISCSI initiators to connect to 4 drives on a SAN.
What concerns, risks, or issues do you think there might be to doing an in place upgrade to 2012 R2? I want some of the new DFSR capabilities.
Yes, I have backups. Restoring would suck. Getting a maintenance window is painful. Before I go down the road, Im just looking for someone (or a few someones) to say "yep, Id feel comfortable doing it"
And secondly is it advantageous / necessary to disconnect the ISCSI drives before doing the upgrade? They're 4, 4, 10, and 4 TB respectively.