Toshiba A200 manual Tests and Diagnostics Hard Disk Test

3 Tests and Diagnostics 3.13 Hard Disk Test

3.The Hard Disk Test message will appear after you respond to the Detail Status prompt. Select the number of the subtest you want to execute and press Enter. The following message will appear during each subtest.

HARD DISK TEST XXXXXXX

XXXDIAGNOSTIC TEST VX.XX [Ctrl]+[Break] : test end

[Ctrl]+[C] : key stop

SUB TEST	: XX
PASS COUNT	: XXXXX	ERROR COUNT	: XXXXX
WRITE DATA	: XX	READ DATA	: XX
ADDRESS	: XXXXXX	STATUS	: XXX

The first three digits of the ADDRESS indicate which cylinder is being tested, the fourth digit indicates the head number and the last two digits indicate the sector number.

The first digit of the STATUS indicates the drive being tested and the last two digits indicate the error status code as explained in the table 3-2 of the section 3.18.

Subtest 01	Sequential read
	This subtest is a sequential reading of 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 uniqueness
	This subtest writes unique address data to each sector of the HDD track-by-track.
	The data written to each sector is then read and compared with the original data.
	There are three ways the HDD can be read:
	1.	Forward sequential
	2.	Reverse sequential
	3.	Random
Subtest 03	Random address/data
	This subtest writes random data in a random length to random addresses. This data
	is then read and compared to the original data.

3-28 PORTEGE A200 Maintenance Manual (960-499)