IBM 3270 Manual page 49

12. Press the Enter key, and wait for these
messages to appear on your screen:
nnnnnn bytes total disk space
nnnnnn bytes used by the system
nnnnnn bytes available on disk
Format another
(YIN)?
The values shown by nnnnnn are replaced by
decimal numbers.
13. Type: n
Format another
(YIN)?
n
14. Wait until you see the DOS prompt.
15. Remove your blank diskette from drive A.
From now on, your blank diskette will be
called the system diskette.
You are now ready to copy the default control
program onto your system diskette. Continue
with the section below, "Copying the Default
Control Program Using One Diskette Drive" on
page 1-41.
1-40 Book 2 - Setting Up and Learning