IBM 3745 Series Service Functions page 259

Initialize Disk
1. Check for correct machine serial number.
2. Enter the answer V, or N in
D.
3. Press SEND.
4. If you confirm, this sequence of messages is
displayed:
DISK FORMATTING IN PROGRESS - PLEASE WAIT
SEVERAL
m
NUTES
READ CHECKING IN PROGRESS - PLEASE WAIT
SEVERAL t·lI NUTES
FORI\lAT CQt,lPLETED; NO DEFECTIVE TRACK
NATE ASSIGNMENT MAP EMPTY
or
FORMAT COMPLETED,
xx
DEFECTIVE TRACK
AL TER-
Note: If any defective track has been found (last
message), screen
0
is displayed.
Note: Most of the track errors during the disk
initialization procedure lead to an alternate track
assignment. But some types of error are not
recoverable, and this alternate track assignment
cannot be used (even if some alternate tracks are
free). In that case, this message is displayed:
FORMAT COMMAND FAILED. CHANGE DISK
or
DISK ERROR. FUNCTION CANCELLED
Refer to "Hard Disk Trouble Analysis and
Replacement" on page 11-18 for further action.
11-12
37
4~
CoiTlI1iunication Controller
DISK INITIALIZATION
PLEASE CONFIRM YOUR SELECTION
(Y OR
fj)
-,>
D
fl :frJD
f3:IHARt1
'6::)U: T
Figure
11-19.
Disk Initialization Confirmation Screen
D
ALTERNATE TRACK ASSIGNMENT MAP
DEfECTIVE
TRACK
AL TERNATE
TRACK
HEAD-CYLINDER HEAD-CHINDER
heee heee
heee heee
heee heee
heee heee
DEfECTIVE
TRACK
ALTERtlATE
TRACK
HEAD-CY LI NDER HEAD-CHI NDER
heee heee
heee heee
hcce heee
heee heee
fOR~1AT
ERRORS:
'x
ID ERRORS:
xx
DATA
ERRO~S:
"
Fl :END f3:ALAR~1
f6:QUlT
Figure
11-20.
Disk Initialization Alternate Track Assign-
ment Screen