IBM 3270 Manual page 54

21. Remove the system diskette from drive A, and
put a label on it.
Felt Tip Only
Indicate on the label that this is your system
diskette and the date on which you set it up.
Also include the volume label that you made
up.
You will use this system diskette
to
load the
control program into your work station's
memory. When you are ready, go to the section
"Loading the Control Program from a System
Diskette" on page 1-49 in Step 6.
Chapter 1. Setting Up the 3270 PC Control Program 1-45