IBM 3745 Series Service Functions page 261

Initialize Diskettes
During diskette initialization, these messages are
successively displayed:
If defective tracks have been found, these mes-
sages are displayed:
11-14
3745 Communication Controller
DISKETTE FORMATTING IN PROGRESS
then
DISKETTE CHECKING IN PROGRESS
DISKETTE INITIALIZATION SUCCESSFULLY COMPLETED
DISKETTE INITIALIZATION UNSUCCESSFULLY
CO~lPLETED
NUMBER OF TRACKS IN ERROR WHILE FORMATTING: xxxx
NUMBER OF TRACKS IN ERROR WHILE CHECKING: xxxx
WARNING: DO NOT USE THIS DISKETTE TO SAVE YOUR
DISK