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CONT.ON 27 PAGE NO.26
4-2-1 HDD PHYSICAL Test
1) Test contents
This test treats PC’s each HDD/SSD as a physical unit, and reads the sectors on the disk to check if the device works correctly. The
test never writes any data on the HDD/SSDs.
The Test checks up to the first 16 built-in ATA/SATA/NVMe HDD/SSDs.
The test reads a data chunk at a time, which consists of consecutive sectors the size of which equals to 64K bytes. Hereafter, the
data chunk is called “64KB-Sectors”.
Depending on the test mode (Detail or Simple), the test defines “Division number” as follows:
■ In case of Simple mode: Division number = 1000
■ In case of Detail mode: Division number = 5000
The test divides the HDD/SSD virtually to “Division counts” of the fragments. Then, it reads 64KB-Sectors in each fragment of
HDD/SSD from low LBA (Logical Block Address of HDD/SSD) to high. If the test reads the 64KB-Sectors from all of the fragments
successfully, it will get 1 Pass.
This is the one cycle of the test. If you set the pass count more than one, the test runs more than one cycle.
The test reads 64KB-Sectors (it is part of one fragment) at same LBA for each cycle.
2) Test screen
▼ Test address …The LBA (Logical Block Address) of HDD/SSD being tested now
▼ Drive information … The drive number currently being tested
▼ Progress status … The test progress by the progress bar
3) Result
If the test runs successfully with all equipped HDD/SSDs, it will get a pass count. However, if an error occurs with one of the
HDD/SSDs, the test is regarded as an error and it will get an error count.
■ In case of PASS
“OK” is shown in the “Result” field on the “Diagnostics” dialog.
The pass count is shown in the “PASS” field.
■ In case of FAIL
Highest LBA
Lowest LBA
M = Division number
Fragment1 Fragment M
Fragment 2
: 64KB-Sect
Fragment 3
Fragment M-1
Drive information
Test address
Progress status
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