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-
- This program was developed as an alternative to IBM'S "ADVANCED DIAGNOSTICS"
- for the hard disk. Although you get more than a hard disk diagnostic with
- IBM'S diagnostics, you pay $295 for the package. All I ask in return for
- the FREE use of this diagnostic is that you do not change the copyright
- nor charge for distribution of this program.
-
- Any problems or suggestions should be forwarded to:
-
- JIM BRACKING
- 967 PINEWOOD DRIVE
- SAN JOSE, CA 95129
- (408) 725-0628
-
-
-
- PROGRAM FEATURES
- ----------------
-
- This program is menu driven and in most cases should be self-explanatory. It
- run on a IBM AT, PC or compatible computer.
-
- The diagnostics are divided into two categories, destructive and non destructive
- tests. These tests can be useful in installing a new disk, finding and
- flagging bad data areas or testing the general working condition of your hard
- disk and controller.
-
-
- NON-DESTRUCTIVE TESTS
- ---------------------
-
- In an IBM compatible hard disk bios the last cylinder is reserved for running
- diagnostic tests on. This program uses that cylinder for diagnostic writes.
-
- F1.......WRITE/READ/VERIFY TEST This test verify's that read and write work
- by writing one sector then reading it and
- comparing it to the value it wrote.
-
- F2.......SEEK TEST This test first verify's every cylinder
- then exercises the read/write heads by
- performing a crossing seek pattern.
-
- F3.......HEAD SELECT This test selects one head on every
- cylinder.
-
- F4.......ECC TEST Most controllers have some form of onboard
- error correction that writes four bytes of
- ECC data with every data record. When the
- data is read these four bytes of ECC are
- used to determine the validity of the data
- and make corrections for any incorrect
- bits depending on the controller. This test
- does a read long, modify's four bits and
- write's the record back with a write long.
- The next read should return the corrected
- data.
-
- F5.......RUN ALL TESTS This runs tests 1 through 4 and allows the
- the user to loop up the tests.
-
- F6.......PREPARE FOR RELOCATION Moves the read/write heads to the landing
- zone. The computer should be shut off after
- executing this or the heads will move back
- onto the data surface.
-
- F7.......DEFECT SCAN Reads every sector the specified number of
- times and reports the errors.
-
-
- DESTRUCTIVE TESTS
- -----------------
-
- F8.......SURFACE ANALYSIS This test writes the worst case data
- pattern (6DB6) on every sector and reads
- it back three times. If any errors are
- found they are reported and the track if
- flagged.
-
- F9.......FORMAT DISK This performs a physical format of the hard
- disk and should not be confused with DOS
- format. If you are formatting a disk for
- the first time then you should specify "y"
- to clear the defects, otherwise a quick
- scan will be made to identify any flagged
- tracks. After the format is done the tracks
- that were flagged as bad will be flagged
- again.
-
- F10......FLAG DEFECTS Its a sad but true fact that most hard
- come from the factory with some known
- defects and some will be developed over
- time. This routine is used to flag those
- defects to prevent any data from being
- written there.
-
- A-F10....FORMAT TRACK The same as the format drive except it
- only formats one track.
-
-
-
- MISCELLANEOUS FUNCTIONS
- -----------------------
-
- A-F9.....TOGGLE PRINTER ON/OFF The printer can be used to log any errors.
-
- A-F10....EXIT Return to DOS
-
-
-
-
-
- SOURCE DOCUMENTATION
-
-
- The hard disk diagnostic is made up of many smaller programs that perform a
- specific function. Below is a brief description of each program. All of the
- BAT files and INCLUDE statements in the programs assume that you have the
- the following sub directories setup.
-
- SCRMGR - SCREEN MAMAGER SOURCE CODE
- HD - HARD DISK DIAGNOSTIC SOURCE CODE
- LST - ASSEMBLY LISTINGS
- OBJ - OBJECT CODE
-
- SCREEN MANAGER DATA
-
- SCRMGR.ASM Does all the screen management and keyboard functions.
- SCRNWORK.ASM Equates and structures
-
- HD SUPPORTING FILES
-
- HD.DOC Documentation
- HDLINK.BAT HD link bat file
- HDLINK.DAT HD link data file (input to hdlink)
- ASM.BAT Assembler bat file
-
- HD SOURCE CODE
-
-
- HD.MAC HD macros
- HDSUB.ASM HD subroutines external declarations
- HDDATA.ASM External declares
- HDEQU.ASM Common equates
- HDMAIN.ASM Main module
- HDALL.ASM Run all tests
- HDECC.ASM Ecc test
- HDFMT.ASM Format program
- HDFSEC.ASM Flag bad sectors
- HDHS.ASM Head select test
- HDMSG.ASM Common messages
- HDRW.ASM Raed write test
- HDSCAN.ASM Scan test
- HDSEEK.ASM Seek test
- HDSHIP.ASM Prtepare for relocation
- HDSURF.ASM Surface analysis
- HDTFMT.ASM Format a specific track