Toshiba T3200 User Manual page 76

3.11 BARD DISK TEST
CAUTION: The contents of the hard disk will be erased when
subtest 02, 03, 04, 06, 08 and 09 is run. Before
running the test, transfer the contents of the hard
disk on the floppy disk. This can be done with the
MS-DOS BACKUP command. After the test, enter the MS-DOS
FDISK command, which will set the partition. Then enter
the MS-DOS FORMAT command. (See the MS-DOS manual for
details.)
Subtest 01 Sequential read (CYL.0-614,CYL.614-0)
time: 8.5 minutes)
(Execution
This test performs forward reading of contents from
track 0 to track 610 and then performs reverse
reading of the contents from track 610 to track
O.
Subtest 02 Address uniquence (Execution time: 13 minutes)
This test writes the address data(sector by sector)
track by track, then reads the data and compares it
to the original data.
Following three kinds of read operations are
performed.
(Forward sequential, Reverse sequential, Random)
Subtest 03 Random address/data (Execution time 30 seconds)
This test write random data in random units to
random address (cylinder, head, sector) and then
reads the data out and compares it to the original
data.
Subtest 04 Cross talk & peak shift (Execution time: 13 minutes)
This test writes the eight types of worst pattern
data (shown below) to cylinders then reads the data
while shifting cylinder by cylinder.
Worst pattern data
1. B5ADAD ...... .
2. 4A5252 ...... .
3. EB6DB6 ...... .
4. 149249 ...... .
5. 63B63B ...... .
6. 9C49C4 ...... .
7. 2DB6DB ..•....
8. D24924 ....•..
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