Toshiba Portege M100 Maintenance Manual page 135

3 Tests and Diagnostics
Subtest 04 Cross talk & peak shift
This subtest writes eight types of worst pattern data (listed below) to a cylinder,
then reads the data while moving from cylinder to cylinder. (Test the data
interference in the neighbor track)
Subtest 06 Write specified address
This subtest writes specified data to a specified cylinder and head on the HDD.
Subtest 07 Read specified address
This subtest reads data, which has been written to a specified cylinder and head on
the HDD.
Subtest 09 Sequential write
This subtest writes specified 2-byte data to all of the cylinders on the HDD.
Subtest 10 W-R-C specified address
This subtest writes data to a specified cylinder and head on the HDD, then reads
the data and compares it to the original data.
3-28
Worst pattern data
'B5ADAD'
'4A5252'
'EB6DB6'
'149249'
'63B63B'
'9C49C4'
'2DB6DB'
'D24924'
Cylinder
0 cylinder
1 cylinder
2 cylinder
3 cylinder
4 cylinder
5 cylinder
6 cylinder
7 cylinder
PORTEGE M100 Maintenance Manual (960-452)
3.11 Hard Disk Test