So, while I got the drive installed, getting everything copied and configured has proven to take a bit more time than I thought. I brought the server back up last night, so it was only down about 30 minutes. Today, it'll be up and down a few times - hopefully I'll get things sorted here shortly.
Thanks for your understanding and patience while I get the new drive up and running

EDIT: And we're back. Again, sorry for the inconvenience while I upgraded the server.