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The defect list may reside in a DOS file or be inputted
from the keyboard. If a DOS file is used. enter its name here.
The DOS file is ended by a carriage return as shown
below. The file name must have an extension (e.g.,
DRIVEDEF).
If entering from the keyboard, press <RET> and the
following will be shown:
Enter defect locations as Cyi/Head/Byte
(or Head/Cyl/Byte) (a blank line will end the list):
For example:
31/2/4054 <RET>
257/4/2253 <RET>
541/3/3415 <RET>
Are the above parameters correct (V /N)?
'i
or
t:!.
An 'N' will return to the beginning of the format pro-
gram. When
'Y'
is selected, the following will be shown:
Formatting Drive ...
The drive is now being formatted. When finished. the
track verification begins, this takes approximately 40 sec-
onds per Megabyte.
The track verification takes longer than most controllers.
The reason for this is that an extensive check is being
made using worst case data patterns.
During track verification the following will be shown:
Verifying Format in Logical Unit 0 ...
Cylinder
XXXX
Verifying Format in Logical Unit X ...
Cylinder
XXXX
Format Completed ..
Run this program again (V /N)?
'i
or
t:!.
Now the primary format is complete. If needed, rerun
the format for drive
1.
When finished answer 'N' to return
to the DOS> A prompt and continue.
10
If defects occur during format the following text will
appear on the screen:
Mapping Defects ...
Reformatting Track-Cylinder XXXX, Head XX, Sector XX
(When 26 sectors are used)
Formatting ALT Track-Cylinder 611. Head 3
(When alternate track is assigned)
NOTE:
Alternate tracks have reduced the total drive capacity.
Verifying Format in Logical Unit X ...
• Verify Error-Logical Unit
X,
Cylinder
XXXX,
Head XX,
Sector XX
Controller Error Code: 91. BIOS Error Code: 10
Reformatting Track
The cylinder number is the physical, not the logical,
cylinder number of the drive. BIOS error codes are found
in Table 5.
TABLE 5.
BIOS ERROR CODES
Code
01
02
04
05
07
09
,OB
10
11
20
40
80
BB
FF
Error
Bad Command Passed to Disk I/O
Address Mark Not Found
Requested Sector Not Found
Reset Failed
Drive Parameter Activity Failed
Attempt to DMA Across 64K Boundary
Bad Track Flag Detected
Bad ECC on Disk Read
ECC Corrected Data Error
Controller Failure
Seek Operation Failed
Attached/Failed to Respond
Undefined Error Occurred
Sense Operation Failed
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PARTITION AND FORMAT DESCRIPTION
Logical drive C is always the first logical unit on drive O.
Logical drive D: is the second logical unit, which could
be on drive 0, if large disk partitioning is used.
The disk must now be partitioned for DOS 2.0 and the
format verified.
1. Insert a copy of DOS 2.0 that contains "FDISK" and
"FORMAT" in floppy drive
A.
2. Type FDISK and Select option 1: Create a DOS partition
(See Chapter 4 of DOS Manual).
If needed, repeat FDISK for drive D using option 5.
3. When complete, type FORMAT CIS. If needed, repeat
for drive D, using FORMAT D:.
This will create a DOS directory, verify the primary format
and flag any bad (defective) sectors. Since the Adaptec
defect handling scheme was used, there will be no
bad sectors. From this point on, you can boot from the hard
disk, copy files and operate your software applications.
You are up and running!
ADAPTEC ABC-2070A
TROUBLESHOOTING CHECKLIST
D
Probable problems: 1701 error; power-on failure; pri-
mary format failures, DOS failures.
D
Check jumpers on the disk drive, be sure that it is not
set for a radial-selected drive.
D
Check jumpers on controller, especially jumpers E-F,
and G-H. Be sure jumper K-L is removed.
D
Check cables, be sure JO goes to drive 0, J1 goes to
drive 1. and J2 goes to both drives. Be sure that pin 1
on the controller is connected to pin 1 of the drive. If only
one drive is being used, connect the cables to the
connectors along the edge of the board. Check that
jumper I-J is removed.
D Check that the terminator on the drive is properly set.
D Check that the power supply can support the added
current required by the drive. Be sure the +5V and
+12V voltages are correct. Verify their requirements
with the drive vendor.
D If using the user-defined drive values (not the four BIOS
tables), be sure that the values are entered correctly.
D Refer to the list of 2,7 RLL drives and systems supported
for compatibility.
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