Action condition decision device, magnetic recording and reproducing device, and magnetic recording and reproducing system

Abstract

Provided are an operation condition decision device capable of deciding a more appropriate operation condition, a magnetic recording and reproducing device, and a magnetic recording and reproducing system. According to an embodiment, the operation condition decision device includes a storage section and a processing section. The storage section is capable of storing a plurality of categories related to information corresponding to a vibration state of a magnetic recording and reproducing device, and a plurality of sets of setting parameters related to an operation of the magnetic recording and reproducing device. The plurality of sets of setting parameters correspond to the plurality of categories. The processing section acquires first data including information obtained by measuring the vibration state of the magnetic recording and reproducing device. The processing section is capable of acquiring one of the plurality of sets of setting parameters from the storage section, the one of the plurality of sets of setting parameters corresponding to one of the plurality of categories corresponding to the first data.

Description

[0001] This application is based on Japanese Patent Application 2022-029044 (filed on February 28, 2022), under which it enjoys priority benefits. This application incorporates the entire contents of that application by reference. Technical Field

[0002] The embodiments of the present invention relate to an operating condition determination device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system. Background Technology

[0003] For example, by appropriately controlling the operating conditions of the magnetic recording and reproduction device, more stable recording and reproduction can be achieved. Summary of the Invention

[0004] Embodiments of the present invention provide an operating condition determination device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system capable of determining more appropriate operating conditions.

[0005] Technical solutions for solving the problem

[0006] According to an embodiment of the present invention, the operating condition determination device includes a storage unit and a processing unit. The storage unit is capable of storing multiple categories related to information corresponding to the vibration state of the magnetic recording and reproduction apparatus, and multiple sets of setting parameters related to the operation of the magnetic recording and reproduction apparatus. The multiple sets of setting parameters correspond to the multiple categories. The processing unit acquires first data, which includes information measuring the vibration state of the magnetic recording and reproduction apparatus. The processing unit is capable of acquiring one of the multiple sets of setting parameters from the storage unit, wherein the one of the multiple sets of setting parameters corresponds to one of the multiple categories corresponding to the first data.

[0007] Based on the above-described operating condition determining device, an operating condition determining device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system can be provided that can determine more appropriate operating conditions. Attached Figure Description

[0008] Figure 1 This is a schematic diagram illustrating the operating condition determination device and magnetic recording reproduction device according to the first embodiment.

[0009] Figure 2 This is a schematic diagram illustrating the operating condition determination device and magnetic recording reproduction device according to the first embodiment.

[0010] Figure 3 This is a schematic diagram illustrating the action condition determination device involved in the embodiment.

[0011] Label Explanation

[0012] 70 Operation condition determination device; 71 Processing unit; 71a Neural network; 72 Storage unit; 75 Classification; 76 Setting parameter set; 79b Display unit; 79c Input unit; 80 Magnetic recording medium; 80A Accelerometer; 80D Recording unit; 80H Magnetic head; 80R Recording and playback unit; 87 Motion control unit; 87a Drive controller; 87b Servo controller; 87c R / W controller; 210, 211 Magnetic recording and playback device; 310, 311 Magnetic recording and playback system; DA1, DA2 First data, DA2 Second data; MS1 Information; P1~P3 First setting parameter set~Third setting parameter set; Px Setting parameter set; V1~V3 First classification~Third classification; Vx Classification Detailed Implementation

[0013] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0014] The accompanying drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the ratio of the size between parts, etc., are not required to be the same as in reality. Even when representing the same part, sometimes the dimensions and ratios of each other are shown differently depending on the accompanying drawings.

[0015] In this application specification and figures, the same reference numerals are used for elements that have been described with respect to the preceding figures, and detailed descriptions are omitted where appropriate.

[0016] (First Embodiment)

[0017] Figure 1 This is a schematic diagram illustrating the operating condition determination device and magnetic recording reproduction device according to the first embodiment.

[0018] like Figure 1 As shown, the magnetic recording and playback apparatus 210 according to the embodiment includes an operating condition determination device 70 and a recording unit 80D. The recording unit 80D includes a magnetic recording medium 80. The magnetic recording medium 80 may include, for example, a hard disk drive (HDD). The recording unit 80D may also include, for example, a solid state drive (SSD). The recording unit 80D may also include a recording and playback unit 80R. The recording and playback unit 80R includes, for example, a magnetic head 80H. Information is recorded on the magnetic recording medium 80 by the recording and playback unit 80R (magnetic head 80H). The information recorded on the magnetic recording medium 80 is reproduced by the recording and playback unit 80R (magnetic head 80H).

[0019] The magnetic recording and reproducing apparatus 210 includes a motion control unit 87. The motion control unit 87 includes, for example, a drive controller 87a, a servo controller 87b, and an R / W controller 87c (recording and reproducing controller). The drive controller 87a controls, for example, the mechanical movements of the magnetic recording medium 80 and the magnetic head 80H. The servo controller 87b provides servo control, for example, the position of the magnetic head 80H relative to the magnetic recording medium 80. The R / W controller 87c controls, for example, recording conditions (recording current, etc.) and reproducing conditions.

[0020] The motion condition determination device 70 can, for example, determine various motion parameters in the motion control unit 87. Based on the various motion parameters determined by the motion condition determination device 70, the control action of the motion control unit 87 is performed.

[0021] The operating condition determination device 70 includes a processing unit 71 and a storage unit 72. The storage unit 72 is capable of storing multiple categories 75 and multiple sets of setting parameters 76. The multiple categories 75 are classifications related to information corresponding to the vibration state of the magnetic recording and reproduction apparatus 210. For example, the vibration state of the magnetic recording and reproduction apparatus 210 may be affected by the vibration of various other devices (other recording devices or cooling fans, etc.). Alternatively, the vibration state of the magnetic recording and reproduction apparatus 210 may be affected by the vibration caused by the rotation of the magnetic recording medium 80 included in the magnetic recording and reproduction apparatus 210. Such multiple vibration states are classified into multiple categories.

[0022] In one example, the servo controller 87b included in the magnetic recording and playback apparatus 210 tracks the vibration state and performs servo control to bring the magnetic head 80H to the target position. The servo signal of the servo controller 87b corresponds to the vibration state. The servo signal of the servo controller 87b is information corresponding to the vibration state. The servo signal may, for example, include a PES (Position Error Signal).

[0023] Thus, the information corresponding to the vibration state of the magnetic recording and reproduction device 210 may include a PES (Position Error Signal). The PES can be obtained from the servo controller 87b.

[0024] Information (e.g., PES) corresponding to the vibration state of the magnetic recording and reproduction device 210 is categorized into multiple categories, thus defining multiple classifications 75. These multiple classifications 75 may include, for example, a first classification V1, a second classification V2, and a third classification V3. In embodiments, the number of multiple classifications 75 is arbitrary.

[0025] The multiple parameter sets 76 are setting parameters related to the operation of the magnetic recording and reproducing apparatus 210. The multiple parameter sets 76 may include, for example, a first parameter set P1, a second parameter set P2, and a third parameter set P3. In embodiments, the number of the multiple parameter sets 76 is arbitrary.

[0026] Multiple parameter sets 76 are determined based on multiple categories 75. For example, a first parameter set P1 is determined corresponding to a first category V1 concerning vibration. A second parameter set P2 is determined corresponding to a second category V2 concerning vibration. A third parameter set P3 is determined corresponding to a third category V3 concerning vibration. The multiple parameter sets 76 are determined such that more appropriate actions can be performed in each of the corresponding categories 75.

[0027] For example, in the first parameter set P1, the servo-related parameter is value A1, the signal processing parameter is value B1, and the R / W parameter is value C1. On the other hand, in the second parameter set P2, the HDI (Head Disk Interface) related parameter is value D2, the head-related parameter is value E2, and the mechanical parameter is value F2. Thus, the multiple parameter sets 76 each include various parameters related to the operation of the magnetic recording and playback device 210.

[0028] Multiple categories 75 and multiple sets of setting parameters 76 corresponding to the multiple categories 75 are stored in the storage unit 72.

[0029] like Figure 1 As shown, the processing unit 71 acquires the first data DA1. For example, the first data DA1 can be obtained from the motion control unit 87 included in the magnetic recording and playback apparatus 210. For example, the first data DA1 includes information MS1 ​​measured regarding the vibration state of the magnetic recording and playback apparatus 210. For example, PES can be acquired from the servo controller 87b. PES corresponds to the information MS1 ​​measured regarding the vibration state. Thus, the first data DA1 can include PES.

[0030] The processing unit 71, for example, determines one of the multiple categories 75 (category Vx) corresponding to the acquired first data DA1. Furthermore, it can retrieve one of the multiple setting parameter sets 76 (setting parameter set Px) corresponding to the determined category (category Vx) from the storage unit 72.

[0031] The processing unit 71 can provide the motion control unit 87 with the setting parameter set Px obtained from the storage unit 72. Based on this setting parameter set Px, the motion control unit 87 performs various control actions. By controlling the operation of the magnetic recording and playback device 210 under appropriate operating conditions (setting parameter set Px) corresponding to the measured information MS1, the magnetic recording and playback device 210 can operate under more appropriate operating conditions. More appropriate actions can be performed.

[0032] Thus, in this embodiment, the processing unit 71 can obtain one of a plurality of setting parameter sets 76 from the storage unit 72. The aforementioned one of the plurality of setting parameter sets 76 obtained from the storage unit 72 corresponds to one of a plurality of categories 75 including the first data DA1 of the measured information MS1. According to this embodiment, an operation condition determination device capable of determining more appropriate operation conditions can be provided.

[0033] For example, there is a reference example where the optimal operating conditions are determined through PES-based calculations. In this case, calculations are performed based on the PES-based measurement results. Therefore, the time required to derive the operating conditions is long, which can easily lead to time delays.

[0034] In contrast, in this implementation, for example, a PES (a first data DA1 related to the vibration state) is obtained, and one of the multiple categories 75 (category Vx) corresponding to that PES is derived. That is, it is not necessary to perform calculations for appropriate operating conditions based on the PES. It is possible to simply obtain the set of setting parameters Px corresponding to one of the multiple categories 75 (category Vx) from the storage unit 72. As a result, the time to determine the operating conditions is short. Because the time is short, for example, even if the vibration state changes, it is possible to track time changes to provide appropriate operating conditions. In this implementation, the circuitry used for calculation is also simplified.

[0035] In an implementation, one of the determined multiple sets of setting parameters 76 (setting parameter set Px) may include, for example, at least one of the following: parameters related to the recording current of the magnetic recording and reproduction apparatus 210, parameters related to the reproduction conditions of the magnetic recording and reproduction apparatus 210, parameters related to the track refresh threshold of the magnetic recording and reproduction apparatus 210, parameters related to the floating state of the magnetic head 80H of the magnetic recording and reproduction apparatus 210, parameters related to the track seek control of the magnetic recording and reproduction apparatus 210, and parameters related to the signal processing conditions of the magnetic recording and reproduction apparatus 210.

[0036] In one implementation, the recording current can be controlled (e.g., changed) by a set of setting parameters Px determined based on the measured information MS1 ​​(first data DA1). In this case, for example, the soft-output Viterbi algorithm bit error rate (SOVA BER) can be improved.

[0037] For example, the levitation state of the magnetic head 80H can be controlled (e.g., changed) by a set of setting parameters Px determined based on the measured information MS1 ​​(first data DA1). In this case, for example, the reliability of the device is improved. The levitation state includes, for example, the distance between the magnetic recording medium 80 and the magnetic head 80H.

[0038] For example, seek control actions can be controlled (e.g., changed) by using a set of setting parameters Px determined based on the measured information MS1 ​​(first data DA1). In this case, for example, I / O (input / output) performance is improved.

[0039] As described above, the processing unit 71 can determine one of the multiple categories 75 (category Vx) corresponding to the first data DA1. The processing unit 71 can obtain one of the multiple setting parameter sets 76 (setting parameter set Px) corresponding to the determined multiple categories 75 (category Vx) from the storage unit 72.

[0040] like Figure 1 As shown, in this embodiment, the determination of one of the multiple categories 75 (category Vx) can be implemented by processing information including the first data DA1 using a neural network (NN) 71a. In the neural network 71a, multiple categories 75 related to the information including the first data DA1 and information corresponding to the vibration state of the magnetic recording reproduction device 210 are used as teacher data, and machine learning is performed. Through processing based on the neural network 71a, one of the multiple categories 75 (category Vx) corresponding to the first data DA1 can be determined efficiently and with high accuracy.

[0041] like Figure 1As shown, the information including the first data DA1 may also include a second data DA2 related to the magnetic recording and reproduction apparatus 210. The second data DA2 may include acceleration information obtained by the accelerometer 80A provided in the magnetic recording and reproduction apparatus 210. The second data DA2 may also include track refresh frequency information in the magnetic recording and reproduction apparatus 210. The second data DA2 may also include write error frequency information or read error frequency information in the magnetic recording and reproduction apparatus 210. By using the second data DA2 as auxiliary information, one of the multiple categories 75 (category Vx) corresponding to the information MS1 ​​measured regarding the vibration state can be derived more accurately. "Write" corresponds to "record". "Read" corresponds to "reproduce".

[0042] Figure 2 This is a schematic diagram illustrating the operating condition determination device and magnetic recording reproduction device according to the first embodiment.

[0043] like Figure 2 As shown, in the operation condition determination device 70, the storage unit 72 can also communicate with the server 73. The processing unit 71 can also communicate with the server 73. For example, the storage unit 72 can also communicate with the server 73 via the processing unit 71. Either wired or wireless methods can be used for communication.

[0044] The storage unit 72 can also update at least one of the multiple categories 75 and multiple sets of setting parameters 76. For example, the server 73 can also perform the update. For example, the internal parameters of the model of the neural network 71a can also be updated. For example, the multiple categories 75 can also be updated according to changes in the internal parameters of the model of the neural network 71a.

[0045] The magnetic recording and reproducing apparatus 210 according to the embodiment (see reference) Figure 1 ) or magnetic recording and reproducing apparatus 211 (see reference) Figure 2 The magnetic recording and playback apparatus 210 or 211 includes the aforementioned operating condition determination device 70. The magnetic recording and playback apparatus 210 or 211 includes a magnetic recording medium 80, a magnetic head 80H, and an operating control unit 87. The magnetic head 80H is capable of recording and reproducing information on the magnetic recording medium 80.

[0046] The motion control unit 87 can control the motion of at least one of the magnetic recording medium 80 and the magnetic head 80H based on one of the multiple set parameter sets 76 (set parameter set Px). It can implement more appropriate actions corresponding to the vibration state.

[0047] (Second Implementation)

[0048] The magnetic recording and reproduction system involved in the second embodiment includes, for example, a magnetic recording and reproduction system 310 (see reference). Figure 1 ) or magnetic recording and reproduction system 311 (refer to Figure 2 The magnetic recording and reproduction system 311 will be described below.

[0049] The magnetic recording and playback system 311 includes the aforementioned operating condition determination device 70. The magnetic recording and playback system 311 may also include a server 73. The server 73 may also be able to update at least one of the multiple categories 75 and multiple sets of setting parameters 76 stored in the storage unit 72.

[0050] The magnetic recording and reproduction system 311 may also include multiple magnetic recording and reproduction devices 211. The processing unit 71 may also be able to obtain one of the above-mentioned (first setting parameter set P1) from multiple setting parameter sets 76 from the storage unit 72 and provide it to the multiple magnetic recording and reproduction devices 211.

[0051] In the magnetic recording and reproduction system 311, the processing unit 71 can also perform machine learning. For example, multiple categories 75, including information about the first data DA1 and information corresponding to the vibration states of multiple magnetic recording and reproduction devices 211, can be used as teacher data for machine learning. For example, machine learning can also be implemented via the server 73.

[0052] In the magnetic recording and reproduction system 310 or 311 according to the embodiments, multiple components (such as the processing unit 71 and the storage unit 72) may be located in different places. Information can be transmitted and received using any communication method. For example, the multiple parts included in the processing unit 71 (such as multiple neural networks) may also be located in different places. In one example, the processing unit 71 is located in the magnetic recording and reproduction apparatus, and the storage unit 72 is located in the server 73. Communication between the magnetic recording and reproduction apparatus and the server 73 can be performed using any method.

[0053] Figure 3 This is a schematic diagram illustrating the action condition determination device involved in the embodiment.

[0054] like Figure 3 As shown, the operation condition determination device 70 includes a processing unit 71 and a storage unit 72. The processing unit 71 is, for example, a circuit. The storage unit 72 may include, for example, at least one of ROM (Read Only Memory) and RAM (Random Access Memory). As the storage unit 72, for example, part of the recording unit 80D may also be used.

[0055] The operation condition determination device 70 may also include a display unit 79b and an input unit 79c. The display unit 79b may include various displays. The input unit 79c may include, for example, a device with operating functions (such as a keyboard, mouse, touch input panel, or voice recognition input device).

[0056] The multiple components included in the operation condition determining device 70 can communicate with each other via at least one wireless or wired method. The locations where the multiple components included in the operation condition determining device 70 are installed can also be different. For example, a general-purpose computer can be used as the operation condition determining device 70. For example, multiple computers interconnected can be used as the operation condition determining device 70. At least one part of the operation condition determining device 70 (e.g., processing unit 71, etc.) can also use dedicated circuitry. For example, multiple interconnected circuits can be used as the operation condition determining device 70.

[0057] The implementation may also include a program. The program causes the computer (operation condition determination device 70) to perform the above-described actions. The implementation may also include a storage medium storing the above-described program.

[0058] Implementation methods may include the following components (e.g., technical solutions).

[0059] (Component 1)

[0060] An action condition determining device, comprising:

[0061] Storage department; and

[0062] Processing Department

[0063] The storage unit can store multiple categories related to information corresponding to the vibration state of the magnetic recording and reproduction device, and multiple sets of setting parameters related to the operation of the magnetic recording and reproduction device, wherein the multiple sets of setting parameters correspond to the multiple categories.

[0064] The processing unit acquires first data, which includes information obtained by measuring the vibration state of the magnetic recording and reproduction device.

[0065] The processing unit can obtain one of the plurality of set parameters from the storage unit, and the one of the plurality of set parameters corresponds to one of the plurality of categories corresponding to the first data.

[0066] (Component 2)

[0067] The device determines the operating conditions as described in configuration 1.

[0068] The first data includes the position error signal, namely PES (Position Error Signal).

[0069] (Component 3)

[0070] The device determines the operating conditions as described in configuration 2.

[0071] The PES is obtained from the servo controller included in the magnetic recording and reproduction device.

[0072] (Component 4)

[0073] The operating condition determining device is configured according to any one of 1 to 3.

[0074] The processing unit is able to determine one of the plurality of categories corresponding to the first data.

[0075] The processing unit is able to retrieve from the storage unit one of the multiple set parameters corresponding to one of the multiple categories determined.

[0076] (Component 5)

[0077] The device determines the operating conditions as described in configuration 4.

[0078] The decision for one of the plurality of classifications is implemented by processing information including the first data using a neural network.

[0079] (Composition 6)

[0080] The device determines the operating conditions as described in configuration 5.

[0081] For the neural network, machine learning was performed using the multiple classifications, including the information from the first data and the information related to the vibration state of the magnetic recording reproduction device, as teacher data.

[0082] (Component 7)

[0083] The device is determined according to the operating conditions described in configuration 5 or 6.

[0084] The internal parameters of the neural network model can be updated.

[0085] The multiple categories can be updated.

[0086] (Composition 8)

[0087] The operating condition determining device is configured according to any one of 1 to 7.

[0088] The information including the first data includes second data relating to the magnetic recording and reproducing apparatus.

[0089] (Composition 9)

[0090] The device determines the operating conditions as described in configuration 8.

[0091] The second data includes at least one selected from acceleration information obtained by an accelerometer provided in the magnetic recording and reproduction device, track refresh frequency information in the magnetic recording and reproduction device, write error frequency information in the magnetic recording and reproduction device, and read error frequency information in the magnetic recording and reproduction device.

[0092] (Composition 10)

[0093] The operating condition determining device according to any one of configurations 1 to 9

[0094] The set of multiple parameters includes at least one of the following: parameters related to the recording current of the magnetic recording and reproduction device, parameters related to the reproduction conditions of the magnetic recording and reproduction device, parameters related to the track refresh threshold of the magnetic recording and reproduction device, parameters related to the floating state of the magnetic head of the magnetic recording and reproduction device, parameters related to the track seek control of the magnetic recording and reproduction device, and parameters related to the signal processing conditions of the magnetic recording and reproduction device.

[0095] (Composition 11)

[0096] The operating condition determining device according to any one of configurations 1 to 10

[0097] The storage unit is capable of updating at least one of the multiple categories and the multiple sets of setting parameters.

[0098] (Composition 12)

[0099] The device for determining the operating conditions as described in configuration 11.

[0100] The storage unit is capable of communicating with the server.

[0101] The server is capable of implementing the update.

[0102] (Composition 13)

[0103] The operating condition determining device according to any one of configurations 1 to 11

[0104] The processing unit and the storage unit can communicate via a server.

[0105] (Composition 14)

[0106] The operating condition determining device according to any one of configurations 1 to 13

[0107] The processing unit is capable of providing the motion control unit included in the magnetic recording and reproducing apparatus with one of the multiple set of setting parameters obtained from the storage unit.

[0108] (Composition 15)

[0109] A magnetic recording and reproduction device,

[0110] It is equipped with the action condition determination device as described in any one of 1 to 13.

[0111] (Composition 16)

[0112] The magnetic recording and reproducing apparatus according to configuration 15 further comprises:

[0113] Magnetic recording media;

[0114] A magnetic head, capable of recording and reproducing information on the magnetic recording medium; and

[0115] Motion control unit

[0116] The motion control unit can control the motion of at least one of the magnetic recording medium and the magnetic head based on one of the plurality of set parameters.

[0117] (Composition 17)

[0118] A magnetic recording and reproduction system,

[0119] It comprises the action condition determination device as described in any one of 1 to 10.

[0120] (Composition 18)

[0121] According to the magnetic recording and reproduction system described in configuration 17

[0122] It also has a server.

[0123] The server is capable of updating at least one of the plurality of categories and the plurality of parameter sets stored in the storage unit.

[0124] (Composition 19)

[0125] According to the magnetic recording and reproduction system described in 17 or 18

[0126] It also includes multiple of the aforementioned magnetic recording and reproduction devices.

[0127] The processing unit is capable of obtaining one of the multiple set parameters from the storage unit for the multiple magnetic recording and reproduction devices, and providing it to the multiple magnetic recording and reproduction devices.

[0128] (Composition 20)

[0129] According to the magnetic recording and reproduction system described in 17 or 18

[0130] It also includes multiple of the aforementioned magnetic recording and reproduction devices.

[0131] The processing unit is able to use the multiple classifications, including the information of the first data and the information corresponding to the vibration state, as teacher data for machine learning with respect to the multiple magnetic recording and reproduction devices.

[0132] According to the embodiments, it is possible to provide an operation condition determination device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system that can determine more appropriate operation conditions.

[0133] The embodiments of the present invention have been described above with reference to examples. However, the present invention is not limited to these examples. For example, the specific configuration of each element, such as the control unit, processing unit, and recording unit, included in the operating condition determination device, magnetic recording and reproduction device, and magnetic recording and reproduction system, is included within the scope of the present invention as long as those skilled in the art can appropriately select from the known scope to similarly implement the present invention and obtain the same effects.

[0134] Any technical solution obtained by combining any two or more elements of the various examples within the scope of technical feasibility, as long as it contains the spirit of the present invention, is also included within the scope of the present invention.

[0135] All operating condition determination devices, magnetic recording and reproduction devices, and magnetic recording and reproduction systems that can be implemented by appropriate design modifications based on the operating condition determination device, magnetic recording and reproduction device, and magnetic recording and reproduction system described above as embodiments of the present invention, provided that they contain the spirit of the present invention, are also within the scope of the present invention.

[0136] Those skilled in the art can conceive of various modifications and alterations within the scope of the present invention, and should consider that such modifications and alterations also fall within the scope of the present invention.

[0137] Several embodiments of the present invention have been described above, but these embodiments are merely illustrative and not intended to limit the scope of the invention. These new embodiments can be implemented in a wide variety of other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included within the scope and spirit of the invention, and are included within the scope of the invention as described in the claims and its equivalents.

Claims

1. A magnetic recording and reproducing system, comprising: an operation condition decision device including a storage section and a processing section; and a plurality of magnetic recording and reproducing devices, wherein in the operation condition decision device, the storage section is capable of storing a plurality of classifications related to information corresponding to a vibration state of the magnetic recording and reproducing device and a plurality of sets of setting parameters related to an operation of the magnetic recording and reproducing device, the plurality of sets of setting parameters corresponding to the plurality of classifications, the processing section acquires first data including information obtained by measuring the vibration state of the magnetic recording and reproducing device, the processing section is capable of acquiring one of the plurality of sets of setting parameters from the storage section, the one of the plurality of sets of setting parameters corresponding to one of the plurality of classifications corresponding to the first data, and the processing section is capable of performing machine learning using information including the first data and the plurality of classifications related to information corresponding to the vibration state as teacher data with respect to the plurality of magnetic recording and reproducing devices.

2. The magnetic recording and reproducing system according to claim 1, wherein the first data includes a position error signal (PES).

3. The magnetic recording and reproducing system according to claim 1, wherein the processing section is capable of deciding one of the plurality of classifications corresponding to the first data, and the processing section is capable of acquiring the one of the plurality of sets of setting parameters corresponding to the decided one of the plurality of classifications from the storage section.

4. The magnetic recording and reproducing system according to claim 3, wherein the decision of the one of the plurality of classifications is implemented by processing information including the first data with a neural network.

5. The magnetic recording and reproducing system according to claim 1, wherein the storage section is capable of updating at least any one of the plurality of classifications and the plurality of sets of setting parameters.

6. The magnetic recording and reproducing system according to any one of claims 1 to 5, further comprising a server, wherein the server is capable of updating at least any one of the plurality of classifications and the plurality of sets of setting parameters stored in the storage section. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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