Sun had a System adminstrator 1 class that lasted a week. I was lucky to be sent by an employer and it was fantastic and granular. Essentially the class was bring up a Solaris install in such a granular system the we started with Inodes or just below Inodes. The entire OS and it’s supporting abstractions were revealed.

If this lab is used for that type of class it would be worth the trouble to keep it running.