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3.9 Hard Disk TestHard Disk Test 3 Tests and Diagnostics
4. This message is used to select whether or not the HDC status is displayed on the
screen. The HDC status is described in section 3.18. Select yes or no.
Detail status display (1:No,2:Yes)
5. After setting is completed, select the number of the subtest and press Enter. The
following message will appear.
HDD DISK TEST IN PROGRESS XXXXXXX
SUB-TEST :XX
xxx DIAGNOSTIC TEST VX.XX
[Ctrl]+[Break] ; test end
[Ctrl]+[C] ; key stop
PASS COUNT:XXXXX ERROR COUNT:XXXXX
WRITE DATA:XXXXX 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 and the last two digits indicate the sector.
The first digit of the STATUS number indicates the drive number being tested and
the last two digits indicate the error status code as explained in Table 3-2.
Subtest 01 Sequential read
This subtest is a sequential reading of all the tracks on the HDD starting at
track 0 to maximum track. 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.
PORTEGE R100 Maintenance Manual (960-440) 3-23