JP6966338B2 - Diagnostic equipment, diagnostic methods and diagnostic programs - Google Patents

Description

The present invention relates to an abnormality diagnosis of an apparatus.

Due to the increase in the amount of data stored in disk array devices and server devices in recent years, HDDs in hard disk drive (HDD) systems mounted on these devices are mounted at a higher density.

It is known that the HDD system may generate an abnormal noise due to abnormal friction even before an abnormal response occurs due to an abnormality in a spindle motor or a receiving shaft that rotates at high speed due to its structure.

Here, Patent Document 1 includes two or more sound collecting elements, detects an abnormal sound of the equipment unit from the collected acoustic signal, acquires the position of the sound source based on the acoustic signal and the operation time, and is abnormal. Disclose an information processing device that identifies a device unit that is a sound source.

Further, Patent Document 2 analyzes the sound emitted by an electronic device, generates feature amount data representing the feature, compares the feature amount data with the learning data, and detects an abnormality in the electronic device based on the comparison result. Disclose the detection system.

Further, Patent Document 3 generates a third acoustic signal obtained by removing the second acoustic signal generated from the environmental sound outside the housing from the first acoustic signal generated from the operating sound of the mechanical component accompanied by rotation. Disclose electronic devices that analyze and diagnose mechanical parts and identify their positions.

Further, in Patent Document 4, the operating noise of the cooling fan is detected, the abnormal noise of the cooling fan is discriminated based on the operating noise of the cooling fan, and the monitoring station determines the operating state of the cooling fan based on the determination result. Disclose the remote monitoring system of the base station to be monitored.

Japanese Unexamined Patent Publication No. 2017-032488 Japanese Unexamined Patent Publication No. 2016-007800 Japanese Unexamined Patent Publication No. 2010-169430 JP-A-2007-228477

The method disclosed in Patent Document 1 estimates the device or the like that is the source of the abnormal sound only by collecting sound, but the estimation accuracy may not be high.

In the HDD system, the HDD is mounted at a high density as described above. Therefore, when the method disclosed in Patent Documents 1 to 4 is applied to an HDD system in which small HDDs are mounted at high density, it is difficult to accurately identify one HDD in which abnormal noise is generated. be.

An object of the present invention is to provide an operating system capable of identifying an operating device in which an abnormality has occurred even when an operating device such as an HDD is mounted at high density.

The diagnostic device of the present invention is a diagnostic device that identifies an abnormal device that is the device of the abnormality in a device group consisting of devices that generate an abnormal sound indicating the abnormality due to an abnormality, and when the abnormal sound is detected. In addition, the suspected device group consisting of the device suspected of being the abnormal device is derived from the sound information at a plurality of places, and the abnormal sound is not detected by stopping the predetermined operation of the device included in the suspected device group. If so, the device related to the stop is specified as the abnormal device.

The operating system of the present invention can identify an operating device in which an abnormality has occurred even when the operating device is mounted at a high density.

It is a conceptual diagram which shows the structural example of the hard disk drive (HDD) system of this embodiment. It is a conceptual diagram which shows the example of storing HDD in HDD part. It is a conceptual diagram which shows the processing flow example of the processing performed by a specific part. It is a conceptual diagram which shows the minimum structure of the diagnostic apparatus of this embodiment.

[Configuration and operation]
FIG. 1 is a conceptual diagram showing a configuration of an HDD system 401, which is an example of the HDD system of the present embodiment.

The HDD system 401 includes an HDD unit 100, microphones 201a and 201b, and a control device 301.

The HDD unit 100 includes HDDs 101 to 109, which are nine HDDs.

The control device 301 includes a specific unit 306, a control unit 311 and a recording unit 316.

The microphones 201a and 201b convert the sound into an electric signal and send it to the specific unit 306 of the control device 301.

The specific unit 306 determines whether or not an abnormality has occurred in any of the HDDs included in the HDD unit 100 based on the electric signals sent from the microphones 201a and 201b. The specific unit 306 determines whether or not the electric signal includes, for example, a sound having a predetermined frequency indicating that an abnormality has occurred in the HDD at a level equal to or higher than a predetermined threshold value. Do it by doing.

When the specifying unit 306 determines that an abnormality has occurred, the specifying unit 306 specifies the position range of the sound source related to the sound of that frequency. As a method for specifying the position range, for example, the method disclosed in Patent Document 1 is used. When the position of the sound source is specified by the method disclosed in Patent Document 1, for example, the error range related to the position is set as the position range. The error range is determined by experience, for example.

Then, the specifying unit 306 identifies the HDD group included in the position range. The HDD included in the HDD group may be one or a plurality of HDDs.

Next, the specific unit 306 selects one HDD included in the specified HDD group.

Then, the specific unit 306 sends instruction information to the control unit 311 to stop a predetermined operation of the selected HDD. The operation of stopping includes an operation that can be a sound source such as rotation of a motor.

Then, the specific unit 306 determines whether an abnormality has occurred in any of the HDDs included in the HDD unit 100, for example, by the above-mentioned method.

When the specific unit 306 determines that no abnormality has occurred in any of the HDDs included in the HDD unit 100 due to the stoppage of the operation of the selected HDD, the abnormality has occurred in the selected HDD. To judge.

Then, the specific unit 306 moves or copies the recorded data held by the selected HDD to the control unit 311 to another HDD.

The control unit 311 controls each HDD of the HDD unit 100. The control includes those related to the start and stop of a predetermined operation of each HDD. The control also includes information input from the outside related to recording in the HDD unit 100. The control also includes output of the data recorded in the HDD unit 100 to the outside. The control also includes moving or copying data held by the HDD included in the HDD unit 100 to another HDD.

The recording unit 316 holds programs and information for the specific unit 306 and the control unit 311 to perform the above-mentioned operations. The recording unit 316 also records information instructed by the specific unit 306 and the control unit 311. The recording unit 316 also sends the information instructed by the specific unit 306 and the control unit 311 to the destination in the instructed control device 301.

The number of HDDs stored in the HDD unit 100 and the storage method are arbitrary.

The HDD unit 100 may store each HDD as shown in FIG. 2, for example. The HDD unit shown in FIG. 2 stores a total of eight HDDs in four columns and two rows.

The specific unit 306 and the control unit 311 may be a central processing unit as a hardware configuration. In that case, the program module that operates the specific unit 306 and the program module that operates the control unit 311 may form one program.

Further, the HDD system of the present embodiment includes three or more microphones, and the position range of the sound source related to the abnormal sound may be specified by the sound information from each microphone, for example, by the method disclosed in Patent Document 1. No.
[Processing flow]
FIG. 3 is a conceptual diagram showing an example of a processing flow of processing performed by the specific unit 306 shown in FIG.

The specific unit 306 starts the process shown in FIG. 3, for example, by inputting start information from the outside.

Then, as the process of S101, the specific unit 306 determines whether or not an abnormal sound is generated, for example, by the above-mentioned method.

If the determination result by the process of S101 is yes, the specific unit 306 performs the process of S102.

On the other hand, when the determination result by the processing of S101 is no, the specific unit 306 performs the processing of S101 again.

When the processing of S102 is performed, the specifying unit 306 specifies the position range of the sound source related to the abnormal sound, for example, by the above-mentioned method.

Then, the specifying unit 306 identifies the HDD group included in the position range specified by the processing of S102 as the candidate HDD group related to the abnormality as the processing of S103.

Then, the specifying unit 306 determines, as the processing of S104, whether or not the candidate HDD group specified by the processing of S103 includes an unprocessed one of S105.

If the determination result by the process of S104 is yes, the specific unit 306 performs the process of S105.

On the other hand, when the determination result by the process of S104 is no, the specific unit 306 performs the process of S115.

When the processing of S105 is performed, the specific unit 306 selects one HDD system group specified by the latest processing of S103 that has not yet been processed by S105.

Then, the specific unit 306 sends instruction information to the control unit 311 shown in FIG. 1, and causes the control unit 311 to stop a predetermined operation of the HDD selected by the process of S105. The operation of stopping includes an operation that can be a sound source such as rotation of a motor and movement of a recording head.

Then, as the process of S107, the specific unit 306 determines whether or not the abnormal sound determined to be generated by the process of S101 is no longer observed.

If the determination result by the process of S107 is yes, the specific unit 306 performs the process of S109.

On the other hand, when the determination result by the process of S107 is no, the specific unit 306 performs the process of S118.

When the processing of S108 is performed, the specific unit 306 sends instruction information to the control unit 311 shown in FIG. 1 and causes the HDD whose operation has been stopped by the processing of S106 to restart the operation.

Then, the specific unit 306 performs the process of S104 again.

When the processing of S109 is performed, the specifying unit 306 determines whether or not the recorded information held by the HDD whose operation has been stopped by the processing of S106 can be stored in another HDD. The specific unit 306 makes the determination, for example, by inquiring to the control unit 311 shown in FIG. The control unit 311 holds, for example, information such as the recorded capacity and the free capacity of each HDD in the recording unit 316, and the determination can be made by referring to the information.

If the determination result by the process of S109 is yes, the specific unit 306 performs the process of S110.

On the other hand, when the determination result by the process of S109 is no, the specific unit 306 performs the process of S116.

When the processing of S110 is performed, the specific unit 306 causes the control unit 311 to restart the operation of the HDD whose operation has been stopped by the processing of S106.

Then, as a process of S111, the specific unit 306 causes the control unit 311 to start moving the recorded information held by the HDD whose operation has been stopped by the process of S106 to another HDD.

Then, the specific unit 306 determines whether or not the movement is completed as the process of S112. The specific unit 306 makes the determination, for example, by inquiring to the control unit 311.

If the determination result by the process of S112 is yes, the specific unit 306 performs the process of S113.

On the other hand, when the determination result by the process of S112 is no, the specific unit 306 performs the process of S117.

When the processing of S113 is performed, the specific unit 306 causes a display unit or the like (not shown) to output information indicating that the movement is normally completed.

Then, as the process of S114, the specific unit 306 causes the control unit 311 to stop all the operations including the operation on the HDD whose operation is restarted by the process of S110. As a result, the HDD can be separated from the HDD unit 100. After that, the HDD is replaced by another HDD not included in the HDD unit 100, for example.

The specific unit 306 performs the processing of S118 after the processing of S114.

When the processing of S115 is performed, the specific unit 306 causes the output unit to output a first error signal as the same processing. The first error signal is information indicating that the HDD in which the abnormality has occurred could not be identified by the latest processing of S104 to S108.

The specific unit 306 performs the processing of S118 after the processing of S115.

When the processing of S116 is performed, the specific unit 306 causes the output unit to output a second error signal as the same processing. The second error signal is information indicating that the recorded information held by the HDD that has failed due to the latest processing of S109 cannot be moved to another HDD.

The specific unit 306 performs the processing of S118 after the processing of S116.

When the processing of S117 is performed, the specific unit 306 causes the output unit to output a third error signal as the same processing. The third error signal is information indicating that the recording information held by the failed HDD due to the latest processing of S112 has failed to be transferred to another HDD.

The specific unit 306 performs the processing of S118 after the processing of S117.

When the process of S118 is performed, the specific unit 306 determines whether to end the operation shown in FIG. 3 as the process.

If the determination result by the process of S118 is yes, the specific unit 306 ends the process shown in FIG.

On the other hand, when the determination result by the process of S118 is no, the specific unit 306 performs the process of S101 again.
[effect]
The HDD system of the present embodiment identifies the HDD group included in the position range in which the sound source of the abnormal sound exists, stops the operation of each HDD included in the HDD group one by one, and determines whether the abnormal sound is no longer detected. investigate. Then, the HDD system identifies the HDD in which the abnormal sound is no longer detected due to the stop as the HDD in which the abnormality has occurred.

Therefore, in the HDD system, even if the HDDs are mounted at high density and one HDD cannot be identified as the source of the abnormal sound due to the generation of the abnormal sound, the HDD in which the abnormality has occurred can be specified. can.

In the above description, the case where the abnormality diagnosis target is an HDD has been described as an example, but the diagnosis target is arbitrary as long as it is a device that generates an abnormal sound due to the abnormality.

FIG. 4 is a conceptual diagram showing the configuration of the diagnostic device 402, which is the minimum configuration of the diagnostic device of the present embodiment.

The diagnostic device 402 is a diagnostic device that identifies the abnormal device that is the device of the abnormality in the device group consisting of devices that generate an abnormal sound indicating the abnormality due to the abnormality.

When the abnormal sound is detected, the diagnostic device 402 derives a suspected device group including the device suspected of being the abnormal device based on sound information at a plurality of places.

Then, the diagnostic device 402 identifies the device related to the stop as the abnormal device when the abnormal sound is no longer detected due to the stop of the predetermined operation of the device included in the suspected device group.
It is difficult to identify one suspected device composed of the device suspected of being the abnormal device by sound information at a plurality of places, especially when the device is mounted at high density.

However, even in such a case, it is possible to identify a plurality of suspected devices.

The diagnostic device 402 identifies a group of suspected devices including a plurality of suspected devices, and among them, a device in which the abnormal sound is no longer detected due to the stop of the operation is specified as the abnormal device.

Therefore, the diagnostic device 402 can identify the abnormal device even when the device is mounted at high density.

Therefore, the diagnostic apparatus 402 exhibits the effects described in the section [Effects of the Invention] according to the above configuration.

The diagnostic device 402 is, for example, a part of the control device 301 shown in FIG. 1 that relates to the identification of the abnormal device.

Although each embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and further modifications, substitutions, and adjustments can be made without departing from the basic technical idea of the present invention. Can be added. For example, the composition of the elements shown in each drawing is an example for facilitating the understanding of the present invention, and is not limited to the composition shown in these drawings.

100 HDD section 101, 102, 103, 104, 105, 106, 107, 108, 109 HDD
201a, 201b Microphone 301 Control device 306 Specific unit 311 Control unit 316 Recording unit 401 HDD system 402 Diagnostic device

Claims (9)

It is a diagnostic device that identifies an abnormal target device that is the target device of the abnormality in a target device group consisting of a target device that generates an abnormal sound indicating the abnormality due to an abnormality.
When the abnormal sound is detected, a suspected target device group consisting of the target device suspected of being the abnormal target device is derived from the sound information at a plurality of places.
When the abnormal sound is no longer detected due to the stop of a predetermined operation of the target device included in the suspected target device group, the target device related to the stop is specified as the abnormal target device.
Diagnostic device. The diagnostic device according to claim 1, wherein the derivation is performed by obtaining a position range of the sound source of the abnormal sound and including the target device in the position range in the suspected target device group. The diagnostic device according to claim 1 or 2, wherein the sound information is acquired by a microphone. The diagnostic device according to claim 3, further comprising the microphone. The diagnostic device according to any one of claims 1 to 4, wherein the target device is a hard disk drive. The diagnostic device according to claim 5, wherein the information held by the hard disk drive specified as the abnormality target device is copied or moved to another device. A system comprising the diagnostic apparatus according to any one of claims 1 to 6 and the target apparatus group. It is a diagnostic method for identifying an abnormal target device which is the target device of the abnormality in a target device group consisting of a target device which generates an abnormal sound indicating the abnormality due to an abnormality.
When the abnormal sound is detected, a group of suspected target devices including the target device suspected of being the abnormal target device is derived from the sound information at a plurality of places.
When the abnormal sound is no longer detected due to the stop of a predetermined operation of the target device included in the suspected target device group, the target device related to the stop is specified as the abnormal target device.
Diagnostic method. It is a diagnostic program that causes a computer to execute a process of identifying an abnormal target device, which is the target device of the abnormality, in a target device group consisting of a target device that generates an abnormal sound indicating the abnormality due to an abnormality.
When the abnormal sound is detected, a process of deriving a suspected target device group consisting of the target device suspected of being the abnormal target device based on sound information at a plurality of locations, and a process of deriving the suspected target device group.
When the abnormal sound is no longer detected due to the stop of the predetermined operation of the target device included in the suspected target device group, the process of identifying the target device related to the stop as the abnormal target device.
A diagnostic program that lets your computer run.

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