JP2019125408A - Diagnostic device, diagnostic method, and diagnostic program - Google Patents

Abstract

To provide an operating system capable of identifying an operating device in which an abnormality occurs even when the operating devices are mounted at a high density.SOLUTION: A diagnostic device identifies an abnormal device that is a device of an abnormality in a device group formed of devices for generating an abnormal sound that indicates the abnormality due to an abnormality, derives, if the abnormal sound is detected, a group of suspected devices formed of the suspected devices of the abnormal devices by sound information in multiple places, and if the abnormal sound is no longer detected due to the stop of a predetermined operation of the target device included in the group of suspected devices, identifies the target device related to the stop as the abnormal target device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to device abnormality diagnosis.

  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 installed in these devices are being mounted with higher density.

  It is known that in an HDD system, an abnormal sound due to abnormal friction may be generated before an abnormal response occurs due to an abnormality in a spindle motor or receiving shaft rotating at high speed due to its structure.

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

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

  Further, Patent Document 3 generates a third acoustic signal in which a second acoustic signal generated from an environmental sound outside the casing is removed from a first acoustic signal generated from an operation sound of a mechanical component accompanied by rotation. An electronic device that analyzes and diagnoses and locates mechanical components is disclosed.

  Further, Patent Document 4 detects the operating noise of the cooling fan, determines the abnormal noise of the cooling fan 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. Disclosed is a remote monitoring system of a base station to be monitored.

JP, 2017-032488, A JP, 2016-007800, A JP, 2010-169430, A JP 2007-228477 A

  Although the method disclosed in Patent Document 1 estimates equipment of a generation source of an abnormal sound only by sound collection, the estimation accuracy may not be high.

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

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

  The diagnostic device of the present invention is a diagnostic device for identifying an abnormal device which is the device of the abnormality in a device group consisting of devices generating an abnormal sound representing the abnormality due to an abnormality, and the abnormal sound is detected Based on the sound information at a plurality of locations, a suspected device group consisting of the devices suspected of the abnormal device is derived, and the abnormal sound is not detected by stopping predetermined operations of the devices included in the suspected device group If this is the case, the device related to the stop is identified 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 devices are mounted at a high density.

It is a conceptual diagram showing the example of composition of the hard disk drive (HDD) system of this embodiment. It is a conceptual diagram showing the example of storage of HDD to a HDD part. It is a conceptual diagram showing the example of a processing flow of the processing which a specific part performs. It is a conceptual diagram showing the minimum composition of a diagnostic device 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 an HDD system according to the present embodiment.

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

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

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

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

  The identifying unit 306 determines, based on the electrical signals sent from the microphones 201a and 201b, whether an abnormality has occurred in any of the HDDs included in the HDD unit 100. The identifying unit 306 determines whether the electric signal contains, for example, a signal corresponding to a sound of a predetermined frequency indicating that an abnormality has occurred in the HDD at a level equal to or higher than a predetermined threshold. It does by doing.

  When determining that an abnormality has occurred, the specifying unit 306 specifies the position range of the sound source related to the sound of the frequency. As a method of 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, an error range related to the position is set as the position range. The error range is determined, for example, by experience.

  Then, the specifying unit 306 specifies an HDD group included in the position range. One or more HDDs may be included in the HDD group.

  Next, the identifying unit 306 selects one HDD included in the identified HDD group.

  Then, the specifying unit 306 sends instruction information to the control unit 311, and stops the 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 identifying unit 306 determines whether an abnormality has occurred in any of the HDDs included in the HDD unit 100, for example, by the method described above.

  If the identifying unit 306 determines that no abnormality occurs in any of the HDDs included in the HDD unit 100 due to the stop of the operation of the selected HDD, the abnormality occurs in the selected HDD Determine

  Then, the identifying unit 306 causes the control unit 311 to move or copy the recording data held by the selected HDD 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 the recording of information input from the outside into the HDD unit 100. The control also includes the 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 a program and information for the specifying unit 306 and the control unit 311 to perform the above-described operation. The recording unit 316 also records information instructed by the specifying unit 306 or the control unit 311. The recording unit 316 also sends the information instructed by the identification unit 306 or the control unit 311 to the designated transmission destination in the control device 301.

  The number of HDDs stored in the HDD unit 100 and the method of storage 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 specifying unit 306 and the control unit 311 may be a central processing unit as a hardware configuration. In that case, the program module for operating the specifying unit 306 and the program module for operating the control unit 311 may constitute one program.

Further, the HDD system of the present embodiment may include 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 of the microphones according to the method disclosed in Patent Document 1, for example. Absent.
Processing flow
FIG. 3 is a conceptual diagram illustrating an example of a processing flow of processing performed by the identifying unit 306 illustrated in FIG.

  The identifying unit 306 starts the process illustrated in FIG. 3 by, for example, the input of start information from the outside.

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

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

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

  When performing the process of S102, the specifying unit 306 specifies the position range of the sound source related to the abnormal sound as the process, for example, by the above-described method.

  Then, as the process of S103, the identifying unit 306 identifies an HDD group included in the position range identified by the process of S102 as a candidate HDD group relating to an abnormality.

  Then, as the process of S104, the identifying unit 306 determines whether the candidate HDD group identified by the process of S103 includes one that has not been subjected to the process of S105.

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

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

  When performing the process of S105, the identifying unit 306 selects one HDD system group that has not been subjected to the process of S105 from the HDD system group identified by the process of the latest S103 as the process.

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

  Then, as the process of S107, the identifying unit 306 determines whether the abnormal sound determined to be generated in the process of S101 is not observed.

  If the determination result in the process of S107 is yes, the identifying unit 306 performs the process of S109.

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

  When performing the process of S108, the identifying unit 306 sends the instruction information to the control unit 311 illustrated in FIG. 1 as the process and causes the HDD whose operation has been stopped by the process of S106 to resume the operation.

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

  When performing the process of S109, the identifying unit 306 determines whether the recording information held by the HDD whose operation has been stopped by the process of S106 can be stored in another HDD as the process. The identifying unit 306 performs the determination, for example, by inquiring of the control unit 311 illustrated in FIG. 1. For example, the control unit 311 causes information such as the recorded capacity and free space of each HDD to be held in the recording unit 316, and the determination can be performed by referring to the information.

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

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

  In the case of performing the process of S110, the identifying unit 306 causes the control unit 311 to resume the operation in the HDD which has stopped the operation in the process of S106.

  Then, in step S111, the specifying unit 306 causes the control unit 311 to start moving the recording information held by the HDD whose operation has been stopped in step S106 to another HDD.

  Then, as the process of S112, the identifying unit 306 determines whether the movement has been completed. The identifying unit 306 performs the determination, for example, by inquiring the control unit 311.

  If the determination result in the process of S112 is yes, the identifying unit 306 performs the process of S113.

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

  When the processing in step S113 is performed, the identification unit 306 causes the display unit (not illustrated) or the like to output information indicating that the movement has been normally completed.

  Then, in step S114, the identifying unit 306 causes the control unit 311 to stop all operations including the operation in the HDD whose operation has been resumed in step S110. As a result, the HDD can be disconnected from the HDD unit 100. Thereafter, the HDD is replaced with another HDD not included in the HDD unit 100, for example.

  The identifying unit 306 performs the process of S118 after the process of S114.

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

  The identifying unit 306 performs the process of S118 after the process of S115.

  When performing the process of S116, the identifying unit 306 causes the output unit to output a second error signal as the same process. The second error signal is information representing that the recording information held by the faulty HDD can not be moved to another HDD by the process of the most recent S109.

  The identifying unit 306 performs the process of S118 after the process of S116.

  When performing the process of S117, the identifying unit 306 causes the output unit to output a third error signal as the same process. The third error signal is information indicating that the recording information held by the failed HDD has failed to be moved to another HDD in the process of S112.

  The identifying unit 306 performs the process of S118 after the process of S117.

  When performing the process of S118, the identifying unit 306 determines, as the same process, whether to end the operation illustrated in FIG.

  If the determination result by the process of S118 is yes, the identifying unit 306 ends the process illustrated in FIG. 3.

On the other hand, when the determination result by the process of S118 is no, the identifying unit 306 performs the process of S101 again.
[effect]
The HDD system according to the present embodiment identifies the HDD group included in the position range where the sound source of the abnormal sound exists, and stops the operation of each HDD included in the HDD group one by one to determine whether the abnormal sound is no longer detected. Examine. Then, the HDD system specifies an HDD for which an abnormal sound is not detected due to the stop as an HDD in which an abnormality occurs.

  Therefore, in the HDD system, even when the HDDs are mounted at high density and it is not possible to specify one HDD as an abnormal sound generation source due to the generation of abnormal sound, it is possible to specify the HDD in which the abnormality is generated. it can.

  In the above description, although the case where the diagnosis target of abnormality is an HDD is described as an example, the diagnosis target is any device that generates an abnormal sound due to an 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 an abnormal device that is the device of the abnormality in a device group including devices that generate an abnormal sound that indicates the abnormality due to an abnormality.

  When the abnormal sound is detected, the diagnostic device 402 derives a group of suspected devices consisting of the devices suspected of the abnormal device based on sound information at a plurality of locations.

Then, when the abnormal sound is not detected due to the stop of the predetermined operation of the device included in the group of suspected devices, the diagnostic device 402 specifies the device related to the stop as the error device.
It is difficult, particularly when the devices are mounted at a high density, to identify one suspected device consisting of the device having a suspicion of the abnormal device based on sound information at a plurality of places.

  However, even in such a case, a plurality of suspect devices can be identified.

  The diagnostic device 402 identifies a group of suspected devices consisting of a plurality of suspected devices, and among them, identifies a device for which the abnormal sound is not detected due to the stop of the operation as the abnormal device.

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

  Therefore, the diagnostic device 402 achieves the effect described in the item of [Effect of the invention] by the above configuration.

  The diagnostic device 402 is, for example, a part related to specifying the abnormal device in the control device 301 shown in FIG.

  As mentioned above, although each embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and can carry out further modification, substitution, adjustment in the range which does not deviate from the basic technical idea of the present invention. It can be added. For example, the configuration of the elements shown in each drawing is an example to help the understanding of the present invention, and the present invention is not limited to the configuration shown in these drawings.

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

Claims (9)

A diagnostic apparatus for identifying an abnormality target device that is the target device of the abnormality in a target device group including a target device that generates an abnormal sound indicating the abnormality due to an abnormality;
When the abnormal sound is detected, a group of suspected target devices consisting of the target devices suspected of the abnormal target device is derived from sound information at a plurality of locations;
The target device related to the stop is specified as the abnormal target device when the abnormal sound is not detected due to the stop of a predetermined operation of the target device included in the group of suspected target devices.
Diagnostic device.   The diagnostic device according to claim 1, wherein the derivation is performed by obtaining a position range of a sound source of the abnormal sound and including the target device in the position range in the group of suspected device groups.   The diagnostic device according to claim 1, wherein the sound information is acquired by a microphone.   A diagnostic device according to claim 3, 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 device according to any one of claims 1 to 6 and the target device group. A diagnostic method for identifying an abnormality target device which is the target device of the abnormality in a target device group consisting of target devices generating an abnormal sound representing the abnormality due to an abnormality.
When the abnormal sound is detected, a group of suspected target devices consisting of the target devices suspected of the abnormal target device is derived from sound information at a plurality of locations;
The target device related to the stop is specified as the abnormal target device when the abnormal sound is not detected due to the stop of a predetermined operation of the target device included in the group of suspected target devices.
Diagnostic method. A diagnostic program that causes a computer to execute processing for identifying an abnormality target device that is the target device of the abnormality in a target device group that includes target devices that generate an abnormal sound that indicates the abnormality due to an abnormality.
A process of deriving a group of suspected target devices consisting of the target devices suspected of the abnormal target devices based on sound information at a plurality of locations when the abnormal sound is detected;
A process of specifying the target device related to the stop as the abnormality target device, when the abnormal sound is not detected due to the stop of the predetermined operation of the target device included in the group of suspected target devices;
Diagnostic program to run on a computer.

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