To access iVols visit ivols.utk.edu. Click the blue log in button and use your UT Net ID username & password to log in. This is the same username and password you use to log into your University of Tennessee e-mail (Volmail) account.
You should receive your Net ID from your host department. You can also go to https://directory.utk.edu and search for your name (like this: family name, given name) in order to find out your Net ID.