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Home > Essays > General Computing

Sunday, January 27, 2002
Test Methodlogy

2. SCSI Mechanic

Test Methodlogy - Page 2

Measurement software

- SCSI Mechanic

SCSI Mechanic 3.0x is used to perform LINEAR reading/writing tests.

Under the Exercise Media tab we find the following picture:

In this mode both Reading and writing tests can be performed. In first we are using the "Read Only" test mode option and we perform in row all 3 tests:

a) Random
b) Sequential
c) Butterfly

The Kbytes/transfer are settled in default value (64kb/s). The time which each test last depends from the disk drive's total sectors since the test starts and counts the total sector operations. When SCSI Mechanic reaches the outer limit of the drive, it stop the reading/writing test and we take the average Kb/s test number:

As we said earlier also writing tests are performed. We select trough the pull down menu "Write Only" and we make all tests in ROW, 3 times repeadetly:

After you press ok the software prompts that this test will destroy all data (and partitions) in the select drive:

As long the test continues, it gives back information about the drive's writing performance in the particular test and we track down the average Kbytes/sec value, when the test completed:

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