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3.13 Hard Disk Test 3 Tests and Diagnostics
TECRA R10 Maintenance Manual (960-708) [CONFIDENTIAL] 3-27
4. 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
XXX DIAGNOSTIC 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 and the last two digits indicate the sector.
The first digit of the STATUS number indicates the drive being tested and the last
two digits indicate the error status code as explained in table 3-2 of the section 3.19.
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.