OK, I've managed to lose my link to the model number/OS version page at IBM.
How far up the ladder can a model 810 go?
Also, I'm trying to get a response from an IBM'er in Boulder in order to get
the disks for V5R4, but she isn't answering her phone or her email. The
customer hasn't gotten a response from the BP either. They are trying to get
their year-end updates installed, but they need 5.4 before they can do that.