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1991-05-17
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Western Digital is a registered trademark of Western Digital
Corporation; IBM PC, AT and XT are registered trademarks of the
International Business Machines Corporation; MS DOS, OS2 and PC DOS
and SCO Xenix are registered trademarks of Microsoft Corporation.
Speedstor is a registered trademark of Storage Dimensions; Disk
Manager is a registered trademark of Ontrack Computer Corporation.
WD1006-RAH
Software Installation
...WARNING..................WARNING......................WARNING...
THE FOLLOWING LOW-LEVEL FORMAT PROCEDURE
WILL DESTROY ALL DATA ON YOUR HARD DRIVE
BACK-UP THE DATA ON YOUR DRIVE BEFORE
CONTINUING WITH LOW LEVEL FORMAT ROUTINE
The format instructions that you follow are simple procedures to tell
the computer that you have either one or two Winchester disk drives
installed and prepares your operating system to recognize the Western
Digital controller.
You will need to know the parameters of your hard disk drives. As a
convenience to you, we have included a list of the most common hard
disk drives and their parameters. To access this list, return to the
STORAGE CONTROLLER menu. If your drive is not listed, contact your
drive manufacturer or consult your drive manual to determine drive
type and parameters.
CAUTION
Avoid system damage by consulting your
Technical Reference manual to ensure that your
drive type is supported by your host BIOS drive
tables. Not all AT-compatibles share the same
drive tables as IBM.
The motherboard BIOS in many older IBM PC AT's or AT compatible
systems do not recognize the 26 sector per track feature of RLL type
hard disk drives. You may perform a low level format of your RLL
drives by one of two methods: 1) Use a third party software such as
Storage Dimensions'or Ontrack; 2) Perform the low level format by
using the BIOS ROM on-board the WD1006-RAH controller.
Low Level Format Using Third Party Software:
Consult your dealer for further information regarding Storage
Dimensions', Ontrack or other third party software. Follow the
instructions provided by the software manufacturer.
Low Level Format Using On-board BIOS ROM:
1. Turn on the power.
2. At the A> prompt, load and run the DOS DEBUG utility. Type
DEBUG followed by a RETURN. ("CR" stands for carriage return or
"enter".)
A>DEBUG (CR)
3. At the DEBUG prompt (-), begin the controller format program by
typing the following:
-g=c800:5
followed by a RETURN. The following appears on the screen:
**** Western Digital WD1006-RAH Setup Utility, Rev. 1.0 ****
DRIVE TYPE CYLINDERS HEADS PRECOMP CYL SPT
At this point, use the +, -, and RETURN keys to scroll through
the drive types available and make your selection.
WARNING!!! Selecting a drive type that is normally reserved
by the system BIOS can cause unpredictable errors. Boot errors,
hard disk controller errors, and hard disk errors are examples
of errors that can occur. Also, selecting a drive type that
corresponds to a system BIOS table that has a larger number of
cylinders and/or heads will result in hard disk errors upon
booting. Consult your manufacturer's technical literature for
information on system BIOS drive tables.
After making your selection, you will see the following:
4. Drive types okay? (Y/N)
To continue answer "y", a "n" answer will return you to the
previous message. At this point, if the drive setup has been
changed, the following message will be displayed and the system
will reboot:
...Parameter tables have been updated.
You should have your bootable diskette in drive A. After
rebooting continue at Step 3.
If the system has not rebooted, you will see the following
message:
5. Do you wish to FORMAT? (Y/N)
Answer "y" to perform a low level format at a 1:1 interleave.
Answer "n" to proceed further. If formatting you will be
prompted to enter the drive letter (C/D). If any problems arise
during the format, the following message will be displayed:
FATAL ERROR !!! ... Check your hardware setup.
Likely causes are an insufficient power supply, improper drive
selection/termination, and improper cabling. Next, the
following message will be displayed:
6. Do you want to do a DESTRUCTIVE surface analysis? (Y/N)
WARNING!!! Answering "y" will erase any existing data on your
fixed disk. The DESTRUCTIVE surface analysis performs writes
and reads on every track of the disk with several worst case RLL
patterns. If any errors occur, the user will be prompted to
format the track as bad. The rate at which the analysis is done
is approximately 88 tracks per minute. Next, the following
message will be displayed:
7. Do you want to VERIFY the drive? (Y/N)
To perform a non-destructive test of a hard disk, the VERIFY
test should be run. The VERIFY test performs 5 verifies on each
track. If any errors occur, the user will be prompted to format
the track as bad. The VERIFY test runs more quickly than the
DESTRUCTIVE surface analysis. Next, the following message will
be displayed:
8. Do you want to enter manufacturers DEFECT list? (Y/N)
At this point, a defect list supplied by the drive manufacturer
can be entered (normally located on a sticker on the drive).
The final message displayed is:
9. Do you wish to EXIT? (Y/N)
Answer "y" to exit, "n" to return to the opening message.
10. Proceed with the FDISK and FORMAT utilities.
Troubleshooting
Problem: 1790 Disk 0 Error.
Cause: No low level format on hard disk. Wrong drive type
selected. Not enough drive power. Bad cables. Improper
drive selection or termination.
Problem: Drive does not partition.
Cause: Check drive types. Note that drive types for the AT
and AT-compatibles differ.
Problem: "Error Reading Fixed Disk" appears when booting from
hard drive.
Cause: DOS partition not active.
Problem: Winchester activity LED continuously lit.
Cause: No problem. Drive LED selected for latched mode.
Problem: DOS returns a seek or ID not found error.
Cause: One possible cause of this problem is a minor incompati-
bility between the WD1006-RAH and the older
WD1003-RAH. If the drive has more than
eight heads (for instance, a 16 head drive), the WD1003-
WAH numbers heads 8 through 15 as 0 through 7 in the
media's ID fields. Contrawise, the WD1006-RAH
numbers heads 8 through 15 as 8 through 15. To
solve the problem, back up and reformat the drive. This
is not manifested in drives with less than eight heads.
If this is not the cause of the error, then you have a
drive problem.
Problem: Slow and inefficient operation.
Cause: The biggest cause for this problem is an incorrect
interleave factor. Therefore, some experimentation with
the interleave factor may be necessary. (Refer to the
format instructions for setting interleave factor).
Interleave factors are very dependent on the host
operating system and application.
Problem: Not getting full capacity from drive.
Cause: You may have an MFM type drive. Consult your drive
manual. The WD1006-RAH is designed for use with RLL
type drives only. DO NOT USE WITH MFM DRIVES.