Test method of SGPIO (Serial General Purpose Input/Output) signal on SAS backboard
A test method and backplane technology, applied in the direction of error detection/correction, instrumentation, electrical digital data processing, etc., can solve problems such as hard disk performance, use time impact, impact on test efficiency and stability, and server system performance impact, etc., to avoid Repeated plugging and unplugging operations ensure test efficiency and stability, and the effect of fast test speed
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[0025] First, a SAS backplane supporting 8 SAS hard disks is selected as the test application object, and the SAS backplane is connected to the test system of the SGPIO signal of the SAS backplane through a MINI SAS cable, thereby constructing a visual graph of the SGPIO signal status of the SAS backplane In the case of continuous testing of 50 SAS backplanes (supporting 8 SAS hard disks), the following test data is obtained: the frequency point to be tested is initially set, that is, the SGPIO signal of the SAS backplane is tested at 32hz, At 1khz, 15khz, 30khz, 50khz, 75khz, 85khz, 100khz (frequency points can be set freely), the SAS backplane can analyze the SFF-8485 protocol. The total test time is 56.3 minutes.
[0026] When the traditional SGPIO signal test method is used, the frequency point to be tested cannot be set, that is, the SGPIO signal on the SAS backplane cannot be tested within the signal frequency range specified in the SFF-8485 protocol, and the ability to ...
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