Toshiba Satellite M40 Maintenance Manual page 116

3 Diagnostic Programs
(1) Read & Write –Write data on the disk, then read it out and compare the two
value;
(2) Read Verify —Read data only;
(3) Unprotected Write—Write data on the disk without backup original data.
Option—Select sequential test or random test
2. Sequential/Random Seek
The test item is to check the correctness of the HDD's sector's seeking function.
This test item involves the following parameters:
IDE HDD Test Range—is same as the description of the upper item.
LBA Start, LBA End-- specify start and finish byte in LBA(Large Block
Address);
Option-- Select sequential test or random test;
Percent -- Specify the coverage rate in percentage of the total disk.
Time Limit(h): Choose or Input the time (hour) of the defined range of the total
disk to be tested;
Time Limit(m): Choose or Input the time (minute) of the defined range of the
total disk to be tested.
3. Performance
Check the HDD's seeking speed and transfer the data rate.
4. Controller Check
42 Satellite M40/M45 TECRA A4 Dynabook Vx/4 Maintenance Manual
3.7 Storage