Toshiba T2000 Maintenance Manual page 81

fourth digit is the head number and the last two digits are the sector number.
The first digit of the STATUS number is the drive number being tested and the last two
digits are the error status code.
CONTENTS
Subtest 01 Sequential read
The sequential read test is a sequential reading of the all the tracks on the HDD
starting at track 0. When all the tracks on the HDD have been read, the test starts at
the maximum track and reads the tracks on the HDD sequentially back to track 0.
Subtest 02 Address uniquence (uniqueness)
The address uniqueness test writes unique address data to each sector, track by track,
on the HDD. The data written to each sector is then read and compared with the
original data. There are three ways in which the HDD can be read:
·
·
·
Subtest 03 Random address/data
This subtest writes random data to random addresses to the cylinder, head, and
sector on the HDD and then reads the written data back and compares it to the
original data.
Subtest 04 Cross talk & peek (peak) shift
This subtest writes the eight types of worst pattern data (shown below) to a cylinder,
then reads the data while moving from cylinder to cylinder.
Worst pattern data:
B5ADADh, 4A5252h, EB6DB6h, 149249h
63B63Bh, 9C49C4h, 2DB6DBh, D24924h
Subtest 05 Write/read/compare(CE)
This subtest writes the worst pattern data (B5ADADh) to the CE cylinder, and then
reads the data out and compares it with the original data.
Subtest 06 Write specified address
Forward sequential
Reverse sequential
Random
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