Toshiba PORTEGE R830 Maintenance Manual page 145

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Tests and Diagnostics

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)

Partial Read

This subtest reads 1GB data that is in minimum, middle and maximum

address of the HDD area.

Write specified address

This subtest writes specified data to a specified cylinder and head on the

Read specified address

This subtest reads data, which has been written to a specified cylinder and

head on the HDD.

Sequential write

This subtest writes specified 2-byte data to all of the cylinders on the HDD.

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.

3-36 [CONFIDENTIAL])

Worst pattern data

PORTEGE R830 Satellite R830 Series Maintenance Manual (960-880)

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