home *** CD-ROM | disk | FTP | other *** search
- October/3/1987
-
-
-
-
- WESTERN DIGITAL CORP. AT FORMAT ROUTINE
-
- WDFMT 2.10
-
-
-
-
-
- WDFMT can be used on any Western DIgital AT Disk Controller to perform
- any of the following tasks.
-
- FORMAT do a low level format of the disk. This will
- remove all data from the drive!!!
-
- VERIFY verify the entire disk.
-
- BAD TRACK mark bad tracks that were found
- and/or enter the bad track map.
-
- SURFACE TEST perform a surface test of the disk. This will
- remoxe all data from the drive!!!
-
- In order to format a drive, one must complete the following steps;
-
- 1) Enter drive parameters when prompted by the program
- or at the DOS command line as shown below.
-
- WDFMT drive# #cyls #head #sectors interleave precomp-cyl skew
-
- 2) Select the FORMAT option from the main menu and press <CR>.
-
- 3) When the format is complete select the VERIFY option from
- the main menu.
-
- 4) When the verify is complete, select the BAD TRACK option
- from the main menu. The program will give a list of
- bad tracks found and ask if the tracks should be marked
- as bad. Next, the user is asked to enter the manufacturer
- bad track map.
-
- 5) If a surface test is desired this can be done now by
- selecting SURFACE TEST from the main menu. When the
- test is complete, the user should return to the BAD
- TRACK option to mark bad tracks found.
-
- WDFMT can keep track of 300 errors at a time. If more than 300 errors
- are found and are to be marked bad, the user will have to repeat the
- VERIFY/SURFACE TEST followed by the BAD TRACK for each group of 300.
-
-
-
-
- In the drive parameter list the user is asked about skew. Skew is the
- shifting of sectors in a track relative to an ajacent track in the
- same cylinder. Below is an example of a skew of 3.
-
- head 0 : 1 2 3 4 5 6 . . . 13 14 15 16 17
- head 1 : 15 16 17 1 2 3 . . . 10 11 12 13 14
- head 2 : 12 13 14 15 16 17 . . . 7 8 9 10 11
- head 4 : 9 10 11 12 13 14 . . . 4 5 6 7 8
-
- In the drive parameter list the user is asked about alternate sector.
- If alternate sector is enabled the formatter will create an alternate
- sector that will be used if one sector is found to be bad during the
- verify or surface test. When using this option one less sector per
- track will available to DOS i.e. if you enter 35 sectors per track
- the formatter will format sectors 1 through 34 and sector 0.
-
-
-