3 Tests and Diagnostics

3.11 Hard Disk Test

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.

Worst pattern data

Cylinder

 

 

‘B5ADAD’

0 cylinder

‘4A5252’

1 cylinder

‘EB6DB6’

2 cylinder

‘149249’

3 cylinder

’63B63B’

4 cylinder

‘9C49C4’

5 cylinder

‘2DB6DB’

6 cylinder

‘D24924’

7 cylinder

 

 

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 that 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.

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TECRA M1 Maintenance Manual (960-436)

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Toshiba tecra m1 manual Worst pattern data Cylinder