CN112650635B - Hard disk performance test method and simulated hard disk - Google Patents
Hard disk performance test method and simulated hard disk Download PDFInfo
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2268—Logging of test results
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
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Abstract
The invention relates to a hard disk performance test method and an analog hard disk. The hard disk performance test method comprises the following steps: installing the simulated hard disk in a vibration environment, detecting and recording vibration parameters in the vibration environment through the simulated hard disk; the method comprises the steps of installing a formal hard disk in the same vibration environment as the simulated hard disk, testing the read-write capability of the formal hard disk, and recording read-write performance parameters; and replacing different vibration environments, repeating the operation to obtain vibration parameters and read-write performance parameters in the different vibration environments, and analyzing and comparing the parameters. The hard disk performance test method provided by the invention can finish the measurement of vibration parameters in different vibration environments and the measurement of read-write performance parameters of the formal hard disk in different vibration environments, and multiple groups of vibration parameters and read-write performance parameters are obtained, so that the read-write performance of the formal hard disk in which vibration environment is obtained is more stable, and reference data is provided for the optimization design of the vibration environment, so that the vibration influence of the formal hard disk in working is reduced.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a hard disk performance test method and an analog hard disk.
Background
If it is said that the data center is a digital economic infrastructure, the server can be understood as the infrastructure of the data center for storing and processing large amounts of data in the "digital economic age". Therefore, in selecting a server, the performance of the server is one of the factors that need to be considered with great importance. The read-write capability of the hard disk is an important index for measuring the performance of the server, and the rotation speed, seek time, cache and other parameters of the hard disk are all important factors affecting the performance of the hard disk. It is known that in the current big data application scenario, a TB (Terabyte) level large capacity mechanical hard disk is the most widespread physical carrier, and the main stream data recording mode generally adopts a perpendicular magnetic recording technology, under which the number of magnetic heads and magnetic disks is mainly increased in the same volume, and the capacity of a single disk is increased to stack the high capacity. The method not only brings great challenges to the process, mechanical structure, servo system, signal processing and the like of the hard disk, but also increases the difficulty of hard disk testing.
Disclosure of Invention
Based on the above, it is necessary to provide a method for testing the performance of a hard disk, which aims at the technical problem that the performance test of the hard disk in the prior art is difficult.
A hard disk performance test method comprises the following steps:
installing the simulated hard disk in a vibration environment, detecting and recording vibration parameters in the vibration environment through the simulated hard disk;
installing the formal hard disk in the same vibration environment as the simulated hard disk, testing the operation capacity of the formal hard disk, and recording operation performance parameters;
and replacing different vibration environments, repeating the operation to obtain vibration parameters and operation performance parameters in the different vibration environments, and analyzing and comparing the parameters.
In one embodiment, the vibration factor in the resulting vibration environment is adjusted to a threshold value while detecting the vibration parameter and testing the performance of the official hard disk.
The vibration environment formed by the critical value can be used as the worst working environment of the formal hard disk, the influence on the running performance of the formal hard disk is the largest, and the influence on the running performance of the formal hard disk in the vibration environment smaller than the critical value is smaller than the influence on the vibration environment corresponding to the critical value as long as the running performance of the formal hard disk can be obtained under the condition that the vibration influence is the largest.
In one embodiment, one of the plurality of sets of operating performance parameters is selected as a reference value in the analysis and comparison parameters; and adjusting the vibration environment to be the same as the vibration environment corresponding to the reference value, and measuring the vibration parameter and the operation performance parameter again.
Such a setting enables to obtain a reference value of the vibration environment that has minimal influence on the running performance of the official hard disk by adjusting the measurement a plurality of times.
In one embodiment, before testing, selecting a measurement point of an analog hard disk, and installing a sensor at the measurement point;
the measuring points comprise first measuring points which correspond to the installation positions of the rotating main shafts on the formal hard disk; and/or the measuring points comprise second measuring points, and the second measuring points correspond to the mounting positions of the cantilever magnetic heads on the formal hard disk.
Vibration at the rotating spindle and the cantilever magnetic head is two factors affecting the running performance of the formal hard disk. When the sensors are respectively arranged at the positions corresponding to the rotating main shaft and the cantilever magnetic head, the influence of vibration in the vibration environment on the running performance of the formal hard disk can be more directly and effectively detected.
In one embodiment, the simulated hard disk is prepared such that the shape parameters of the simulated hard disk are the same as those of the official hard disk before the test is performed, and a sensor for detecting vibrations is installed on the measurement point of the simulated hard disk.
The simulation hard disk in the arrangement is mainly used for simulating the shape parameters of the formal hard disk, not only can satisfy the weight and the size of the formal hard disk so as to satisfy the same external load of the vibration environment, but also is convenient for the installation of the sensor so as to accurately detect the vibration parameters in the vibration environment.
In one embodiment, the adaptive balancing weight is added on the simulated hard disk according to the shape parameters of different formal hard disks.
The arrangement can enable the simulated hard disk corresponding to the formal hard disk to meet the weight requirement through the additional installation of the balancing weight, and further ensure that the inertia force born by the simulated hard disk and the simulated hard disk in the same vibration environment is the same.
In one embodiment, a test network is built before testing;
the test network comprises a host and a sensor for detecting vibration, wherein the sensor can transmit the vibration parameters to the host, and the host is used for recording the vibration parameters.
The sensor can be arranged on the simulated hard disk, and then the sensor is simultaneously arranged in a vibration environment along with the simulated hard disk, so that vibration parameters in the vibration environment can be detected and collected; the vibration parameters are then transferred to a host computer for storage and recording of the vibration parameters for comparative analysis between sets of data to obtain the most advantageous data.
In one embodiment, the sensor is screwed to the analog hard disk, or the sensor is glued to the analog hard disk.
The sensor can be stably fixed on the simulation hard disk through the arrangement, so that the sensor can vibrate synchronously along with the simulation hard disk, and further the detection precision of vibration parameters is improved.
In one embodiment, the vibration environment is provided by a server, and the vibration factor in the vibration environment comprises a rotational speed of a fan in the server, and the vibration parameter comprises at least one of acceleration, speed, displacement, and temperature.
Such an arrangement uses the rotation of the fan as a main vibration source when the server is in operation, and when the fan rotates, the vibration caused by the larger rotation speed is larger, and the running performance of the formal hard disk mounted on the server is affected. Vibration parameters caused by rotation of the fan are measured, so that reference data is conveniently provided for design of a heat dissipation structure on the server. Meanwhile, by measuring parameters with different properties, the influence of the parameters on the simulated hard disk caused by the reaction vibration environment is combined, and the detection precision is improved.
The invention also provides an analog hard disk, which can solve at least one technical problem.
The simulated hard disk is used for replacing a formal hard disk and is used for replacing the formal hard disk to perform vibration detection;
the simulated hard disk comprises a tray, a hard disk jig and a balancing weight; the tray is provided with a mounting groove, the hard disk jig is mounted in the mounting groove, the hard disk jig is provided with a jig cavity for mounting the sensor, and the balancing weight can be mounted in the jig cavity.
In one embodiment, the tray is provided with routing holes.
Such a setting can be convenient for install the sensor in hard disk tool and walk the line through walking the line hole.
The invention has the beneficial effects that:
the invention provides a hard disk performance test method, which comprises the following steps:
installing the simulated hard disk in a vibration environment, detecting and recording vibration parameters in the vibration environment through the simulated hard disk; installing the formal hard disk in the same vibration environment as the simulated hard disk, testing the operation capacity of the formal hard disk and recording operation performance parameters; and then changing different vibration environments and repeating the operations, so as to finish the measurement of vibration parameters in different vibration environments and the measurement of the running performance parameters of the formal hard disk in different vibration environments, obtain a plurality of groups of vibration parameters and running performance parameters, and compare the two parameters, thereby obtaining that in which vibration environment the running performance of the formal hard disk is more stable, that is, the running performance of the formal hard disk is least influenced, and further providing reference data for the optimization design of the vibration environments so as to reduce the vibration influence of the formal hard disk during working. When the hard disk performance test mode is used, structural transformation of the vibration environment is not needed, and the detection is convenient.
The invention provides an analog hard disk which is used for replacing a formal hard disk to perform vibration detection; the simulated hard disk comprises a tray, a hard disk jig and a balancing weight; the tray has the mounting groove, and hard disk tool installs in the mounting groove, and hard disk tool is provided with the tool chamber that is used for installing the sensor, and the balancing weight can be installed in the tool intracavity. That is, the hard disk fixture and the tray together form a simulated hard disk for simulating a formal hard disk, and simultaneously, the different weights are installed in the hard disk fixture to simulate the formal hard disk with different weights, so that the structure of the formal hard disk is simulated, and the sensor is convenient to install, so that the sensor is used for replacing the formal hard disk to perform vibration detection in the hard disk performance detection.
Drawings
FIG. 1 is a flow chart of a method for testing performance of a hard disk according to an embodiment of the present invention;
FIG. 2 is a first schematic diagram of a fixture for simulating a hard disk in a hard disk according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram of a fixture for simulating a hard disk in a hard disk according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a simulated hard disk according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a wire through hole on a tray in an analog hard disk according to an embodiment of the present invention.
Icon: 10-simulating a hard disk; 11-a tray; 12-a hard disk jig; 20-a sensor; 111-wiring holes; 121-jig cavity.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, fig. 1 shows a flowchart of a method for testing performance of a hard disk according to an embodiment of the invention, including the following steps:
preparing a simulated hard disk, and manufacturing the simulated hard disk which can be used for simulating actual shape parameters of a formal hard disk so as to replace the formal hard disk;
a test network is built, and a test network capable of carrying out data transmission and data detection is built so as to detect and collect vibration born by the analog hard disk, and the test network can facilitate the reading and writing of the formal hard disk and test the reading and writing performance of the formal hard disk; meanwhile, the detection result can be analyzed and compared;
performing data test, namely installing the prepared simulated hard disk into a vibration environment for test, and detecting vibration born by the simulated hard disk in the vibration environment as a vibration parameter in the vibration environment; the method comprises the steps of installing a formal hard disk in a vibration environment which bears the same vibration as a simulated hard disk, and testing the read-write performance of the formal hard disk at the moment to serve as the read-write performance parameter of the formal hard disk in the vibration environment; then changing different vibration environments, sequentially putting the simulated hard disk and the formal hard disk according to the different vibration environments, and respectively measuring vibration parameters and read-write performance parameters corresponding to the different vibration environments;
and (3) data comparison analysis, wherein multiple groups of data obtained in the whole test process are analyzed and compared so as to select optimal test data.
That is, when the prepared analog hard disk is installed in a vibration environment, the test network starts to operate. Vibration in the vibration environment can be transmitted to the simulated hard disk, so that the simulated hard disk is promoted to vibrate. At the moment, information acquisition is carried out on vibration born by the simulated hard disk so as to acquire vibration parameters in a vibration environment. And then taking out the simulated hard disk from the vibration environment, putting the formal hard disk into the vibration environment, and enabling the formal hard disk to read and write in the vibration environment so as to test the read and write performance of the formal hard disk. And after the test is finished, taking out the formal hard disk from the vibration environment. And then changing different vibration environments, and sequentially putting the simulated hard disk and the formal hard disk according to the different vibration environments to obtain vibration parameters and read-write performance parameters. Finally, a plurality of groups of vibration parameters and read-write performance parameters in different vibration environments are obtained, and analysis and comparison are carried out on a plurality of groups of data. That is, one vibration environment corresponds to one set of vibration parameters, one set of vibration parameters corresponds to one set of read-write performance parameters, and further, it is obtained that the read-write performance parameters corresponding to which set of vibration parameters are optimal, that is, the influence on the read-write performance of the formal hard disk in the corresponding vibration environment is minimum. And then the vibration environment is used as a design reference, so that a tester can optimally design the actual working environment structure of the formal hard disk.
The shape parameters of the simulated hard disk are prepared according to the shape parameters of the formal hard disk. That is, not only the external structure of the simulated hard disk is the same as that of the main hard disk, but also the weight of the simulated hard disk is the same as that of the main hard disk. On the one hand, such an arrangement ensures that the structure for mounting the dummy hard disk is identical to the structure for mounting the main hard disk with respect to the vibration environment, thereby enabling the dummy hard disk to be mounted in the mounting structure identical to the main hard disk. Namely: the installation environments of the simulated hard disk and the formal hard disk are the same. On the other hand, the arrangement can make the simulated hard disk bear the same vibration in the vibration environment as the formal hard disk in the same vibration environment, and the inertia force of the simulated hard disk in the vibration environment is the same as the inertia force of the formal hard disk in the vibration environment. Namely: in a vibration environment, the stress of the simulated hard disk is the same as that of the formal hard disk.
By such an arrangement, it is ensured that the simulated hard disk and the official hard disk are identical in the variation generated in the vibration environment. Namely: when the simulated hard disk is installed in the vibration environment for detecting the vibration parameters, the method is equivalent to installing the formal hard disk in the vibration environment for detecting the vibration parameters, and the vibration parameters applied to the formal hard disk are obtained so as to be convenient for comparing and analyzing with the read-write performance parameters of the formal hard disk.
When the method is used for testing formal hard disks of different types, according to different shape parameters, the matching balancing weights can be additionally arranged on the simulated hard disk, so that the weight of the simulated hard disk reaches the weight standard of the formal hard disk.
During actual use, the sensor is used for detecting vibration parameters in the vibration environment. At this time, the test network further comprises a host, and vibration signals collected by the sensor can be transmitted to the host and processed and analyzed by the host. The sensor is arranged on the simulated hard disk, can be simultaneously placed in a vibration environment with the simulated hard disk, further detects and collects vibration born by the simulated hard disk in the vibration environment, transmits collected vibration signals to the host, and generates data records capable of being visually observed on the host.
In fact, it is inconvenient to install the sensor just because the formal hard disk structure is complicated. Therefore, the simulated hard disk is prepared through structural simulation with the formal hard disk, and the size, the shape and the weight of the simulated hard disk are identical to those of the formal hard disk except that normal read-write operation cannot be performed. The simulated hard disk also has an installation space for installing the sensor, and when the sensor is installed on the simulated hard disk, the installation of the simulated hard disk relative to the vibration environment is not hindered.
When the sensor is stably arranged on the simulated hard disk, the sensor can synchronously vibrate along with the simulated hard disk, so that the vibration condition of the simulated hard disk in the vibration environment can be accurately acquired, and the vibration parameters in the vibration environment can be obtained. In actual use, the sensor can be fixed on the simulated hard disk through screws so as to be convenient to detach. Alternatively, the sensor is bonded to the analog hard disk by a strong adhesive. In any of the above-described arrangement modes, the sensor can be stably mounted on the analog hard disk.
In actual use, the mounting position of the sensor is selected to have the greatest influence on the read-write performance of the official hard disk. In this embodiment, two selectable measurement points are given with emphasis, namely a first measurement point and a second measurement point. The first measuring point is located on the main spindle of the hard disk, i.e. the sensor can be installed on the analog hard disk at a position corresponding to the main spindle. Meanwhile, the second measuring point is positioned at the position of the cantilever magnetic head on the formal hard disk, namely, the position corresponding to the cantilever magnetic head on the simulation hard disk can be used for installing the sensor.
It should be noted that the rotating spindle of the main hard disk is connected with a disk, so that the disk is driven to rotate at a high speed by the spindle motor, and the suspension head can float above the disk due to the buoyancy generated by the rotation of the disk. The cantilever head is used for reading and writing data. When the cantilever magnetic head reads and writes data, the magnetic pole of the magnetic force can be induced without contacting the surface of the disk. The cantilever head is capable of transferring read and write data to a host. It is known that the rotation of the spindle is related to the rotation of the disk, and the data read/write of the cantilever magnetic head is related to the vibration of the spindle and the cantilever magnetic head, which are two factors affecting the read/write performance of the hard disk. When the sensors are respectively arranged at the positions corresponding to the rotating main shaft and the cantilever magnetic head, the influence of vibration in the vibration environment on the read-write performance of the formal hard disk can be more directly and effectively detected.
It is to be added that the measuring points for mounting the sensor may comprise only the first measuring points or only the second measuring points. The vibration of the main hard disk during actual operation may be detected.
In this embodiment, the vibration environment is formed by a server, and the position for placing the formal hard disk or the simulated hard disk is specifically a slot position on the server. The server needs to radiate heat during working, and the heat radiation is realized through a fan. The fan may generate vibration of a certain frequency when running at a high speed, and this vibration may cause degradation of the read/write performance of the hard disk. Therefore, in the present embodiment, the server is taken as a vibration environment, and the rotation of the fan in the server is taken as a vibration factor that causes vibration. When the detection is carried out, the simulated hard disk and the formal hard disk are respectively installed on the server, and the server is started, so that a fan in the server normally operates, and vibration born by the simulated hard disk and the read-write performance of the formal hard disk when the fan operates are respectively detected.
And the server is internally provided with test software for testing the read-write performance parameters of the hard disk, and is connected with a display so as to facilitate man-machine interaction. Namely, the test operation of the test software and the test result obtained by the test software can be displayed from a display so as to be convenient for an operator to observe. Meanwhile, a display is also connected to a host for analyzing the detection data of the sensor, a detection system for testing vibration is installed on the host, and the sensor can transmit the detection data to the host so as to form a visual pattern on the display after being analyzed and processed by the host, so that an operator can observe the visual pattern conveniently. When the simulated hard disk is used for replacing different slot positions relative to the server, the sensor respectively obtains corresponding detection data in vibration environments of different slot positions, and the detection data can form visual patterns on the display. For example, an image curve is generated, the curve having a peak trough. In different vibration environments, the wave crests and wave troughs of the corresponding vibration parameters are also different. Wherein, corresponding vibration parameters in different vibration environments can be represented by curves of different colors. The display for displaying the test performance parameters of the formal hard disk may be the same as or different from the display for displaying the vibration parameters of the analog hard disk, so long as a visual pattern can be formed for the operator to observe.
The first visual pattern is displayed by the display according to the vibration parameter, and the second visual pattern is displayed by the display according to the read-write performance parameter. When the parameter comparison is carried out, corresponding vibration parameters in different vibration environments are displayed in the same coordinate system through a first visual pattern displayed by a display. Meanwhile, second visual patterns formed by the read-write performance parameters of the corresponding formal hard disk in different vibration environments are displayed in the same coordinate system. The vibration parameter is used as a first coordinate system, and the read-write performance parameter is used as a second coordinate system. One first visual pattern in the first coordinate system corresponds to one second visual pattern in the second coordinate system. At this time, the optimal one of the plurality of second visual patterns is observed, and then the corresponding one of the plurality of first visual patterns is found.
For example, the first visual pattern is a waveform curve and the second visual pattern is a histogram. The longer the length of the histogram, the better the read-write performance parameter representing the formal hard disk. And selecting one group of data with the longest length of the corresponding bar graph as a reference value from a plurality of groups of corresponding read-write performance parameters measured in vibration environments provided by different slot positions. And correspondingly finding a waveform curve corresponding to the reference value in the first coordinate system, wherein the waveform curve is a vibration parameter in a vibration environment corresponding to the reference value. And then, taking the vibration parameter as a reference, improving other servers so that the servers can be more inclined to the vibration environment under the reference value, and further measuring again according to the measuring method so as to obtain the optimal design reference.
In this embodiment, the benchmark is used to perform the read-write performance test of the formal hard disk, and the read-write bandwidth and IOPS (Input/Output Operations Per Second, read-write times per second) can be recorded. Of course, baseline can also be used for testing the read-write performance of the formal hard disk.
In some embodiments, the signal transmission of the sensor employs remote transmission. The test network built at this time further comprises a data receiver, and the data receiver is electrically connected with the host. The sensor is provided with a signal transmitter, the signal transmitter can remotely transmit vibration signals acquired by the sensor to the data receiver, the data receiver rotates into level signals to be transmitted to the host, corresponding curve images and parameter values are generated on the host, and the curve images and the parameter values are displayed through the display.
It should be noted that the vibration parameters used for detection by the sensor include at least one of acceleration, speed, displacement and temperature, and the detection data corresponding to each detection object can generate a corresponding curve image on the host. The acceleration is the speed of vibration speed change of the simulated hard disk, namely after the simulated hard disk is installed on the server, the rotation of the fan drives the simulated hard disk to simulate the vibration change of the hard disk from rest to vibration in the acceleration process, so that the inertia force of the rotation of the fan to the simulated hard disk is judged. The speed is the vibration speed of the simulated hard disk in the vibration process, namely the speed of the simulated hard disk vibrating along with the rotation of the fan. The displacement is the displacement of the initial position of the simulated hard disk in the vibration process. The initial position of the simulated hard disk is the position of the simulated hard disk when the fan is not started. In addition, the sensor is also used for detecting the temperature of the simulated hard disk, and the temperature is related to the heat radiation performance of the fan. Corresponding sensors can be arranged for different detection objects, and corresponding detection data are acquired.
In other words, in this embodiment, the amplitude, the vibration frequency and the vibration speed of the analog hard disk can be determined by detecting the acceleration, the speed and the displacement of the analog hard disk in the server, so as to facilitate analysis of the influence of the operation of the fan on the read-write performance of the hard disk. Meanwhile, the heat dissipation performance of the corresponding fans in different simulated hard disks is analyzed by combining the temperature detection of the simulated hard disks. And obtaining reference data for optimizing the design of the heat dissipation structure of the server through analysis of the detection information.
It should be noted that when the simulated hard disk and the formal hard disk are installed in a vibration environment, respectively, the rotational speed of the fan on the server should be kept the same so that the simulated hard disk and the formal hard disk are subjected to the same vibration. Meanwhile, the vibration factor in the vibration environment needs to be adjusted to a critical value during detection. That is, in the present embodiment, when the test operation is performed, it is necessary to adjust the rotation speed of the fan to the maximum, that is: so that the rotational speed of the fan can be at a critical value.
When the rotation speed of the fan is at the critical maximum, the vibration generated during the operation of the fan is also the maximum, and the vibration of the simulated hard disk and the formal hard disk mounted on the server is affected the most. Therefore, if the maximum value of the vibration parameter can be selected as the vibration parameter in the vibration environment in which the read/write performance of the main hard disk is obtained, in a plurality of different vibration environments, when the rotation speed of the fan is smaller than the critical maximum value, the influence of the rotation of the fan and the main hard disk is smaller than the influence of the critical maximum value. That is, as long as the analysis and comparison of the vibration parameter and the read-write performance parameter at the critical maximum value can be performed, as a design reference for the fan load limit of the server, the fan load is in a relatively safe state when the fan load is smaller than the critical value.
It should be noted that, the present embodiment also provides an analog hard disk for performing vibration detection instead of the formal hard disk. Referring to fig. 2-4, fig. 2 is a first schematic diagram illustrating a hard disk fixture in a simulated hard disk according to an embodiment of the invention; FIG. 3 is a second schematic diagram illustrating a hard disk fixture in a simulated hard disk according to an embodiment of the present invention; fig. 4 is a schematic diagram of an analog hard disk according to an embodiment of the invention. The simulated hard disk 10 provided in the present embodiment includes a tray 11 and a hard disk fixture 12, where the tray 11 is used for carrying the hard disk fixture 12. The tray 11 is provided with the mounting groove, and hard disk tool 12 installs in the mounting groove, and the screw passes the cell wall of tray 11 and hard disk tool 12 rigid coupling. The hard disk jig 12 is provided with a jig cavity 121, and the sensor 20 is installed in the jig cavity 121. The sensor 20 is provided with mounting lugs along the two sides of the width direction of the jig cavity 121 respectively, and screws penetrate through the mounting lugs to be in threaded connection with the hard disk jig 12, so that the sensor 20 is fixed relative to the hard disk jig 12. The setting of tray 11 is used for installing with the server, and the setting of hard disk tool 12 is not only used for installing sensor 20, can be convenient for the installation of balancing weight moreover. When the balancing weight is installed, the balancing weight can be fixed in the jig cavity 121 of the hard disk jig 12 through screws.
Wherein the analog hard disk 12 is made of aluminum alloy. Of course, other metal materials may be used as long as they can simulate the shape parameters of the hard disk to facilitate the detection and collection of vibration parameters.
Referring to fig. 5, fig. 5 shows a schematic diagram of a wire through hole on a tray in a simulated hard disk according to an embodiment of the invention. That is, the tray 11 is further provided with a wiring hole 111, and the wiring hole 111 facilitates the wiring of the sensor 20.
In summary, the method for testing the performance of the hard disk according to the present embodiment is as follows:
the simulation hard disk is prepared for standby, a test network is built, the sensor is fixed on the simulation hard disk, and normal data transmission can be carried out between the sensor and the data receiver and between the data receiver and the host. And the server is connected with the display, so that the hard disk testing tool can be ensured to normally operate. And then starting a test flow, installing the simulated hard disk into a slot on the server, and sampling and measuring the vibration of the simulated hard disk through the cooperation of the measuring system and the sensor. After the required data is obtained, the simulated hard disk is removed from the slot. And simultaneously, the formal hard disk is installed in the same slot, and the read-write performance of the formal hard disk is tested through a hard disk testing tool. After test data are obtained, the formal hard disk is disassembled from the slot and replaced to a new slot, and vibration sampling measurement is carried out again; after the data is obtained, the simulated hard disk is disassembled, and the formal hard disk is installed to a new slot to measure the read-write performance. And sequentially circulating. And when the number of the replaced slots is greater than 10, stopping measuring, and analyzing the data obtained by each measurement to further obtain the condition that the influence on the read-write performance of the formal hard disk in the vibration environment is minimum as the optimal data. If the number of the replaced slots is less than 10, the new slots are continuously replaced for measurement, and finally the measurement data with the number more than 10 are obtained. When the number of the replaced slots is larger, the obtained measurement result is better, and better reference data is provided for the heat dissipation strategy and mechanism design of the server, so that the service performance of the hard disk is improved.
The number of the replacement slots may be 15, so long as a plurality of sets of test data can be obtained to facilitate analysis and comparison.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The hard disk performance testing method is characterized by comprising the following steps of:
the method comprises the steps of installing a simulation hard disk (10) in a vibration environment, detecting and recording vibration parameters in the vibration environment through the simulation hard disk (10), wherein the appearance structure of the simulation hard disk (10) is identical to that of a formal hard disk, the weight of the simulation hard disk is identical to that of the formal hard disk, and an installation space for installing a sensor is further formed in the simulation hard disk (10);
then taking the simulated hard disk (10) out of the vibration environment, putting the formal hard disk into the vibration environment, testing the operation capability of the formal hard disk, and recording operation performance parameters;
and replacing different vibration environments, repeating the operation to obtain vibration parameters and operation performance parameters in the different vibration environments, and analyzing and comparing the parameters.
2. The method of claim 1, wherein the vibration factor in the forming vibration environment is adjusted to a critical value when detecting vibration parameters and testing the performance of the official hard disk.
3. The method according to claim 1, wherein one of a plurality of sets of operation performance parameters is selected as a reference value in the analysis and comparison parameters; and adjusting the vibration environment to be the same as the vibration environment corresponding to the reference value, and measuring the vibration parameter and the operation performance parameter again.
4. The method for testing the performance of a hard disk according to claim 1, characterized in that before the test is performed, measuring points of the simulated hard disk (10) are selected;
the measuring points comprise first measuring points which correspond to the installation positions of the rotating main shafts on the formal hard disk; and/or the measuring points comprise second measuring points, and the second measuring points correspond to the mounting positions of the cantilever magnetic heads on the formal hard disk.
5. The method for testing the performance of the hard disk according to claim 4, wherein the simulated hard disk (10) is prepared such that the shape parameters of the simulated hard disk (10) are identical to the shape parameters of the official hard disk before the test is performed, and a sensor (20) for detecting vibration is installed on a measurement point of the simulated hard disk (10).
6. The method for testing the performance of the hard disk according to claim 5, wherein the adaptive balancing weight is added on the simulated hard disk (10) according to the shape parameters of different formal hard disks.
7. The method for testing the performance of the hard disk according to claim 5, wherein a test network is built before the test is performed;
the test network comprises a host and a sensor (20) for detecting vibrations, the sensor (20) being capable of transmitting the vibration parameters to the host, the host being used for recording the vibration parameters.
8. A method of testing the performance of a hard disk according to any one of claims 5 to 7, characterized in that the sensor (20) is screwed to the simulated hard disk (10) or the sensor (20) is glued to the simulated hard disk (10).
9. The method of any one of claims 1-7, wherein the vibration environment is provided by a server, and the vibration factor in the vibration environment includes a rotational speed of a fan in the server, and the vibration parameter includes at least one of acceleration, speed, displacement, and temperature.
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