3 Tests and Diagnostics

 

3.13 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. (Test the

 

data interference in the neighbor track)

 

 

 

 

 

 

 

Worst pattern data

Cylinder

 

 

 

 

 

 

 

 

‘B5ADAD’

0 cylinder

 

 

 

‘4A5252’

1 cylinder

 

 

 

‘EB6DB6’

2 cylinder

 

 

 

‘151149’

3 cylinder

 

 

 

’63B63B’

4 cylinder

 

 

 

‘9C49C4’

5 cylinder

 

 

 

‘2DB6DB’

6 cylinder

 

 

 

‘D25114’

7 cylinder

 

Subtest 05

Partial Read

 

 

 

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

 

address of the HDD area.

 

 

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 08

Sequential write

 

 

 

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

Subtest 09

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

[CONFIDENTIAL]

TECRA R10 Maintenance Manual (960-708)

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Toshiba TECRA R10 manual Hdd