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Tests and Diagnostics
TECRA S3 Maintenance Manual (960-532) [CONFIDENTIAL] 3-37
Subtest 04 Cross talk & peak shift
This subtest writes eight types of worst pattern data (listed below) to a
cylinder and then reads the data while moving from cylinder to cylinder.
(Tests the data interference in the neighbor track.)
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 05 Partial Read
This subtest reads 1GB data which 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.