TWI710753B - Method for analyzing effect of noise on hard disk performance - Google Patents

Abstract

Method for analyzing the effect of noise on hard disk performance is provided. A signal generator controls a speaker to generate a first single tone having a first frequency in the frequency interval. A recorder measures the first sound pressure of the first single tone at the position of a hard disk. When the speaker generates the first single tone, the I/O throughput measurement server measures a first I/O throughput of the hard disk. If the first I/O throughput is lower than a predetermined value, the speaker generates a second single tone having a first frequency and a second sound pressure at the position of the hard disk. The recorder measures the second sound pressure of the second single tone. When the speaker generates the second single tone, the I/O throughput measurement server measures the second I/O throughput of the hard disk. If the second I/O throughput is above the predetermined value, record the first frequency and the second sound pressure.

Description

Methods to analyze the effect of vibration and noise on hard disk performance

The invention relates to an analysis method for the performance of a hard disk, in particular to an analysis method for the effect of vibration and noise frequency and sound pressure on the performance of the hard disk.

Computer systems, including desktop computers, industrial computers, and servers, generally use hard disks to access data. However, as the storage density of hard disks increases, the sensitivity of hard disks also increases. As the heat generated by the central processing unit is becoming more and more obvious, the fan also needs to increase the speed to dissipate heat, resulting in greater and greater noise and vibration. The hard disk is often affected by the noise and reduces the performance (such as causing hard disk read and write Even if the central processing unit of the computer system operates at a faster rate, it cannot access data normally, which will affect the operation of the computer system. In the worst case, it will damage the hard disk, which may cause important customers. Significant loss of data. This method of analyzing the impact of noise frequency and sound pressure on the performance of hard drives can find out the sensitive frequency and maximum tolerable sound pressure of hard drives, and can promptly propose specifications for manufacturers to design suitable fans.

A method for analyzing the effect of vibration and noise on the performance of hard disks is used in a test system, which includes a recording device, a signal generator, a speaker, a hard disk and a transmission rate test server, The method includes: setting a frequency interval for the signal generator, setting the frequency interval for the transmission rate test server, the signal generator controlling the speaker to generate a first single frequency tone, the first single frequency tone having a first single frequency tone A frequency, the first frequency is within the frequency range, and the first single-frequency tone has a first sound pressure at the position of the hard disk, and the recording device measures the first single-frequency at the position of the hard disk When the first single-frequency tone is generated by the speaker, the transmission rate test server measures a first data transmission rate of the hard disk. If the first data transmission rate is lower than a predetermined Value, the signal generator controls the speaker to generate a second single-frequency tone. The second single-frequency tone has the first frequency and has a second sound pressure at the position of the hard disk. The second sound pressure is Less than the first sound pressure; the recording device measures the second sound pressure of the second single-frequency tone at the position of the hard disk, and when the speaker generates the second single-frequency tone, the transmission rate test server volume A second data transmission rate of the hard disk is measured, and if the second data transmission rate is higher than a predetermined value, the first frequency and the second sound pressure are recorded.

A method for analyzing the effect of vibration and noise on the performance of a hard disk is used in a test system. The test system includes a recording device, a signal generator, a speaker, a hard disk and a transmission rate test server. The method includes: The signal generator sets a frequency interval; the transmission rate test server sets the frequency interval, the signal generator controls the speaker to generate a first single-frequency tone, the first single-frequency tone has a first frequency, and the first The frequency is in the frequency range, and the first single-frequency tone has a first sound pressure at the position of the hard disk, and the recording device measures the first tone of the first single-frequency tone at the position of the hard disk When the speaker generates the first single-frequency tone, the transmission rate test server measures a first data transmission rate of the hard disk. If the transmission rate test server cannot measure the first data transmission rate of the hard disk Data transmission rate, the signal generator controls the speaker to generate a second single-frequency tone, the second single-frequency tone has the first frequency, and has a second sound pressure at the location of the hard disk, the second tone The pressure is less than the first sound pressure, the recording device measures the second sound pressure of the second single-frequency tone at the position of the hard disk, and when the speaker generates the second single-frequency tone, the transmission rate test The server measures a second data transmission rate of the hard disk.

100: Hard Disk Test System

10: Signal generator

20: Horn

30: recording equipment

40: Transmission rate test server

50: Hard Disk

200: Analyze the effect of vibration and noise on hard drive performance

S210 to S280: steps

Figure 1 is a schematic diagram of the hard disk test system in the embodiment.

Figure 2 is a flowchart of the method of analyzing the effect of vibration and noise on the performance of the hard disk.

Figure 1 is a schematic diagram of a hard disk testing system 100 in an embodiment. The hard disk test system 100 includes a signal generator 10 for generating control signals, a speaker 20 for playing single-frequency sound, a recording device 30 for measuring sound pressure, a transmission rate test server 40 and a hard disk 50. The recording device 30 includes a microphone, which is placed in the hard disk 50 and is used to receive the single-frequency sound played by the speaker 20. The transmission rate test server 40 has a hard disk performance test software, such as IOmeter, for measuring the data transmission rate of the hard disk. The signal generator 10 can set the frequency range and automatically sweep the frequency. The signal generator 10 can control the single-frequency tone in an automatic stepping manner within the frequency range of the speaker 20, such as 50Hz to 20000Hz. At the same time, the transmission rate test server 40 can be used to measure the data transmission rate of the hard disk 50 (Hard disk I/O throughput), and then find out the sensitive frequency that degrades the transmission performance of the hard disk 50. These frequency data can be used to improve the design of the system fan.

FIG. 2 is a flowchart of the method 200 for analyzing the effect of vibration and noise on the performance of the hard disk. The method 200 is applied to the hard disk test system 100 and can be automatically tested after the signal generator 10 and the transmission rate test server 40 have set the measurement range. The method 200 for analyzing the effect of vibration and noise on the performance of the hard disk includes the following steps: S210: setting a frequency range for the signal generator 10; S220: setting the frequency range for the transmission rate test server 40; S230: the transmission rate test server 40 measuring the hard disk The ideal data transmission rate of the disc 50; S240: the signal generator 10 controls the speaker 20 to generate a single frequency tone, which has a frequency The frequency is within the frequency range, and the single-frequency tone has a sound pressure at the position of the hard disk 50; S250: the recording device 30 measures the sound pressure of the single-frequency sound at the position of the hard disk 50; S260 : When the speaker 20 generates the single-frequency tone, the transmission rate test server 40 measures the data transmission rate of the hard disk 50; S270: If the data transmission rate is lower than a predetermined value or the transmission rate test server 40 cannot measure the hard disk For the data transmission rate of the disk 50, skip to step S240; otherwise, proceed to step S280; S280: record the frequency and enable the transmission rate test server 40 to measure the sound pressure at which the data transmission rate of the hard disk 50 is higher than the predetermined value.

In step S230, the transmission rate test server 40 measures the data transmission rate of the hard disk 50 in an environment with little noise to find the ideal data transmission rate of the hard disk 50. In step S240, the signal generator 10 can control the horn 20 to generate a single-frequency tone from the frequency range of step S210 to simulate noise, and it will automatically step by step at intervals (for example, from low frequency to high frequency or from low frequency to high frequency). High frequency to low frequency) control the horn 20 to generate another single frequency tone. The frequencies of the single-frequency tones generated by the speaker 20 are within the frequency range set in step S210, so that the single-frequency tones of each frequency in the frequency range can be found and recorded in the subsequent steps without serious damage to the hard disk 50. The sound pressure of the data transfer rate.

In step S270, if the data transmission rate is lower than a predetermined value, or the transmission rate test server 40 cannot measure the data transmission rate of the hard disk 50, it means that the sound pressure of the single-frequency tone in step S240 is too high, which will seriously damage The data transmission rate of the hard disk 50. Therefore, step S270 needs to jump back to step S240, so that the signal generator 10 controls the speaker 20 to generate another single-frequency tone. The frequency of the other single-frequency tone remains unchanged, but the sound pressure should be reduced. In this way, through the loop of step S240 to step S270, it is possible to find out the sound pressure of the single-frequency sound at a certain frequency that does not seriously damage the data transmission rate of the hard disk 50. When the sound pressure is found, step S280 can be executed to record the allowable sound pressure at the frequency.

The measurement result record using the method 200 for analyzing the effect of vibration and noise on the performance of the hard disk can be shown in Table 1. The first table is a comparison table of the noise frequency, the sound pressure at the position of the hard disk 50 and the data transmission rate of the hard disk 50. From this table, we can see the frequency point at which the data transmission rate of the hard disk 50 drops significantly. When testing the data transmission rate of the hard disk 50 at these frequency points, the signal generator 10 can be controlled to reduce the sound pressure released by the speaker 20, and it can be found that the single-frequency tone will not seriously damage the data transmission rate of the hard disk 50 Sound pressure.

It can be seen from Table 1 that the data transfer rate of the hard disk 50 is 113.52IO/s without the influence of single-frequency audio. If the data transmission environment of the hard disk 50 is tested using 4KB, 113.52IO/s will be equal to 4KB ×113.52 and 454.08KB/s. When the sound pressure exists, the operation of the hard disk 50 will be affected by the audio and sound pressure. Decrease the data transfer rate. For example, when the frequency is 1250 Hz and the sound pressure at the hard disk 50 is 105 dB, the data transmission rate is 111.94IO/s. Assuming that the predetermined value of step S270 of method 200 is 100IO/s, because 111.94IO/s exceeds 111.94IO/s 100IO/s is an acceptable data transmission rate, so step S280 of method 200 can be performed to directly record the frequency of 1250 Hz and the sound pressure of 105 dB. When the frequency is 1600 Hz and the sound pressure at the hard drive 50 is 108 dB, the data transmission rate drops to 97.8IO/s. Since 97.8IO/s is lower than the predetermined value (100IO/s), the sound pressure must be The sound pressure at the position of the disk 50 is 95dB, and step S240 is executed; when the sound pressure at the position of the hard disk 50 is 95dB, the data transmission rate of the hard disk 50 is increased to 102.92IO/s, which is greater than the predetermined value (100IO/s) , Is an acceptable data transmission rate, so step S280 of method 200 can be performed, with a recording frequency of 1600 Hz and a sound pressure of 95 dB. When the frequency is 2000Hz and the sound pressure at the hard drive 50 is 106dB, the data transmission rate drops to 88.66IO/s. Since 88.66IO/s is lower than the predetermined value (100IO/s), the sound pressure must be When the sound pressure at the position of the hard disk 50 is 90dB, perform step S240; when the sound pressure at the position of the hard disk 50 is 90dB, the data transmission rate of the hard disk 50 is increased to 102.78IO/s, which is greater than the predetermined value (100IO/s) , Is an acceptable data transmission rate, so step S280 of method 200 can be performed, with a recording frequency of 2000 Hz and a sound pressure of 90 dB. When the frequency is 2800Hz and the sound pressure at the hard disk 50 is 100dB, the data transmission rate is 111.31IO/s, which is greater than the predetermined value (100IO/s), which is an acceptable data transmission rate, so method 200 can be performed In step S280, the recording frequency is 2800 Hz and the sound pressure is 100 dB. Therefore, it can be seen from Table 1 that the sensitive frequency of the hard disk (the data transmission rate drops the most) is 1600~2000Hz. The data described in Table 1 are only examples, and the present invention is not limited thereto.

The single-frequency sound described in the embodiment can be used to simulate the vibration and noise generated by a fan in a computer system. The test data recorded in Table 1 can be provided to the fan manufacturer, and the manufacturer can know that the sensitive frequency of the hard disk used in the computer system is 1600~2000Hz. The audio and sound pressure data can be used when designing the system fan. The fan in the computer system avoids the sensitive frequency or reduces the sound pressure of the fan at the sensitive frequency to improve the performance of the computer system.

To sum up, the method for analyzing the effect of vibration and noise on the performance of hard disks in the present invention can automatically measure the data transmission rate of hard disks under different noise frequencies through the use of signal generators, speakers, recording equipment and transmission rate test servers. Effectively find out the sensitive frequency of the hard disk and withstand sound pressure. These frequency and sound pressure data can be used to improve the design of the system fan, thereby improving the performance of the computer system. The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

200: Analyze the effect of vibration and noise on hard drive performance

S210 to S280: steps

Claims (7)

A method for analyzing the effect of vibration and noise on the performance of a hard disk is used in a test system. The test system includes a recording device, a signal generator, a speaker, a hard disk and a transmission rate test server. The method includes: The signal generator sets a frequency interval; the transmission rate test server sets the frequency interval; the signal generator controls the speaker to generate a first single-frequency tone, the first single-frequency tone has a first frequency, and the first The frequency is within the frequency range, and the first single-frequency tone has a first sound pressure at the position of the hard disk; the recording device measures the first tone of the first single-frequency tone at the position of the hard disk When the speaker generates the first single-frequency tone, the transmission rate test server measures a first data transmission rate of the hard disk; if the first data transmission rate is lower than a predetermined value, the signal is generated The device controls the speaker to generate a second single-frequency tone, the second single-frequency tone has the first frequency, and has a second sound pressure at the position of the hard disk, the second sound pressure being less than the first sound pressure ; The recording device measures the second sound pressure of the second single-frequency tone at the position of the hard disk; when the speaker generates the second single-frequency tone, the transmission rate test server measures a portion of the hard disk A second data transmission rate; and if the second data transmission rate is higher than the predetermined value, the first frequency and the second sound pressure are recorded. A method for analyzing the effect of vibration and noise on the performance of a hard disk is used in a test system. The test system includes a recording device, a signal generator, a speaker, a hard disk and a transmission rate test server. The method includes: The signal generator sets a frequency range; Set the frequency interval to the transmission rate test server; the signal generator controls the speaker to generate a first single frequency tone, the first single frequency tone has a first frequency, and the first frequency is within the frequency interval, And the first single frequency sound has a first sound pressure at the position of the hard disk; the recording device measures the first sound pressure of the first single frequency sound at the position of the hard disk; when the speaker generates the first sound pressure In the case of a single-frequency tone, the transmission rate test server measures a first data transmission rate of the hard disk; if the transmission rate test server cannot measure the first data transmission rate of the hard disk, the signal is generated The device controls the speaker to generate a second single-frequency tone, the second single-frequency tone has the first frequency, and has a second sound pressure at the position of the hard disk, the second sound pressure being less than the first sound pressure ; The recording device measures the second sound pressure of the second tone at the position of the hard disk; and when the speaker generates the second tone, the transmission rate test server measures the hard disk A second data transmission rate. As described in claim 2, the method for analyzing the effect of vibration and noise on the performance of the hard disk further includes: if the second data transmission rate is higher than a predetermined value, recording the first frequency and the second sound pressure. As described in claim 2, the method for analyzing the effect of vibration and noise on the performance of the hard disk further includes: if the second data transmission rate is lower than a predetermined value, the signal generator controls the speaker to generate a third single frequency tone, and the first Three monophonic tones have the first frequency and a third sound pressure at the position of the hard disk. The third sound pressure is smaller than the second sound pressure; the recording device measures the first sound pressure at the position of the hard disk. The third sound pressure of the three tones; and when the speaker generates the third tones, the transmission rate test server measures a first of the hard disk 3. Data transmission rate. As described in claim 4, the method for analyzing the effect of vibration and noise on the performance of the hard disk further includes: if the third data transmission rate is higher than the predetermined value, recording the first frequency and the third sound pressure. The method for analyzing the effect of vibration and noise on the performance of the hard disk as described in claim 1 or 2, further includes: setting an interval time for the signal generator; wherein the signal generator controls the speaker to generate another single frequency at the interval time sound. As described in claim 1 or 2, the method for analyzing the effect of vibration and noise on the performance of the hard disk further includes: the transmission rate test server measures an ideal data transmission rate of the hard disk.

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