You can use a few different commmands to view the output you are looking for.
environment status shelf | more
This will display all the information of the shelves connected to the filer.
You can further the command by specifying the actual shelf Id for example if it is 4b
environment status shelf 4b | more
Pipe it so the text does not run off the screen.
You can also use the Sysconfig -a option as well.
LAst but not least, if your system is configured with this file, you can view it for the data you need.
rdfile /etc/environment.
I hope this helps.