Operation condition determination device, magnetic recording and reproducing device, and magnetic recording and reproducing system

Abstract

To provide an operation condition determination device that can determine a more appropriate operation condition, a magnetic recording and playback device, and a magnetic recording and playback system.SOLUTION: According to an embodiment, an operation condition determination device includes a storage part and a processing part. The storage part is capable of storing a plurality of classifications related to information corresponding to an oscillation state of a magnetic recording and playback device, and a plurality of setting parameter sets related to operation of the magnetic recording and playback device. The plurality of setting parameter sets correspond to the plurality of classifications. The processing part acquires first data, and the first data includes information obtained by measuring the oscillation state of the magnetic recording and playback device. The processing part is capable of acquiring one of the plurality of setting parameter sets from the storage part, and the one of the plurality of setting parameter sets corresponds to one of the plurality of classifications corresponding to the first data.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to an operation condition determination device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system.

Background Art

[0002] For example, by appropriately controlling the operating conditions of a magnetic recording and reproducing device, more stable recording and reproduction become possible.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of the present invention 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.

Means for Solving the Problems

[0005] According to an embodiment of the present invention, an operation condition determination device includes a storage unit and a processing unit. The storage unit can store a plurality of classifications related to information corresponding to the vibration state of a magnetic recording and reproducing device, and a plurality of sets of setting parameters related to the operation of the magnetic recording and reproducing device. The plurality of sets of setting parameters correspond to the plurality of classifications. The processing unit acquires first data, and the first data includes measured information on the vibration state of the magnetic recording and reproducing device. The processing unit can acquire one of the plurality of sets of setting parameters from the storage unit, and the one of the plurality of sets of setting parameters corresponds to one of the plurality of classifications corresponding to the first data.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

[0007] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings are schematic or conceptual, and the relationships between the thickness and width of each part, the ratios of the sizes between parts, etc. are not necessarily the same as those in reality. Even when representing the same part, the dimensions and ratios may be represented differently in the drawings. In the specification of the present application and each figure, the same reference numerals are given to the same elements as those described above with respect to the previously shown figures, and the detailed description is appropriately omitted.

[0008] (First Embodiment) FIG. 1 is a schematic diagram illustrating an operation condition determination device and a magnetic recording and reproducing device according to the first embodiment. As shown in FIG. 1, the magnetic recording and reproducing device 210 according to the embodiment includes an operation 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 magnetic disk (HDD: Hard Disk Drive). The recording unit 80D may include, for example, an SSD (Solid State Drive). The recording unit 80D may include, for example, a recording and reproducing unit 80R. The recording and reproducing unit 80R includes, for example, a magnetic head 80H. Information is recorded on the magnetic recording medium 80 by the recording and reproducing unit 80R (magnetic head 80H). Information recorded on the magnetic recording medium 80 is reproduced by the recording and reproducing unit 80R (magnetic head 80H).

[0009] The magnetic recording and reproducing apparatus 210 includes an operation control unit 87. The operation 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 operations of the magnetic recording medium 80 and the magnetic head 80H. The servo controller 87b servo-controls, for example, the position of the magnetic head 80H with respect to the magnetic recording medium 80. The R / W controller 87c controls, for example, recording conditions (such as recording current) and reproducing conditions.

[0010] The operation condition determination device 70 can determine, for example, various operation parameters in the operation control unit 87. Based on the various operation parameters determined by the operation condition determination device 70, the control operation of the operation control unit 87 is performed.

[0011] The operation condition determination device 70 includes a processing unit 71 and a storage unit 72. The storage unit 72 can store a plurality of classifications 75 and a plurality of setting parameter sets 76. The plurality of classifications 75 are classifications related to information corresponding to the vibration state of the magnetic recording and reproducing apparatus 210. For example, the vibration state of the magnetic recording and reproducing apparatus 210 is affected by the vibration of various other devices (other recording devices, or cooling fans, etc.). Or, the vibration state of the magnetic recording and reproducing apparatus 210 is affected by the vibration caused by the rotation of the magnetic recording medium 80 included in the magnetic recording and reproducing apparatus 210. Such a plurality of vibration states are classified into a plurality of categories.

[0012] In one example, the servo controller 87b included in the magnetic recording and reproducing apparatus 210 servo-controls so that the magnetic head 80H reaches the target position following the vibration state. The servo signal of the servo controller 87b depends on the vibration state. The servo signal of the servo controller 87b is information corresponding to the vibration state. The servo signal may include, for example, a PES (Position Error Signal).

[0013] Thus, the information corresponding to the vibration state of the magnetic recording and reproducing apparatus 210 may include a PES (Position Error Signal). The PES can be obtained from the servo controller 87b.

[0014] Such information (e.g., PES) corresponding to the vibration state of the magnetic recording and reproducing apparatus 210 is classified into a plurality of categories, and a plurality of classifications 75 are determined. The plurality of classifications 75 include, for example, a first classification V1, a second classification V2, and a third classification V3. In an embodiment, the number of the plurality of classifications 75 is arbitrary.

[0015] The plurality of sets of setting parameters 76 are setting parameters related to the operation of the magnetic recording and reproducing apparatus 210. The plurality of sets of setting parameters 76 include, for example, a first set of setting parameters P1, a second set of setting parameters P2, and a third set of setting parameters P3. In an embodiment, the number of the plurality of sets of setting parameters 76 is arbitrary.

[0016] The plurality of sets of setting parameters 76 are determined according to the plurality of classifications 75. For example, corresponding to the first classification V1 related to vibration, a first set of setting parameters P1 is determined. Corresponding to the second classification V2 related to vibration, a second set of setting parameters P2 is determined. Corresponding to the third classification V3 related to vibration, a third set of setting parameters P3 is determined. The plurality of sets of setting parameters 76 are determined so that more appropriate operations can be performed in each of the corresponding plurality of classifications 75.

[0017] For example, in the first set of setting parameters P1, the servo-related parameter is an A1 value, the signal processing parameter is a B1 value, and the R / W parameter is a C1 value. On the other hand, in the second set of setting parameters P2, the HDI (Head Disk Interface)-related parameter is a D2 value, the head-related parameter is an E2 value, and the mechanical parameter is an F2 value. Thus, each of the plurality of sets of setting parameters 76 includes various plural parameters related to the operation of the magnetic recording and reproducing apparatus 210.

[0018] A plurality of classifications 75 and a plurality of sets of setting parameters 76 corresponding to the plurality of classifications 75 are associated and stored in the storage unit 72.

[0019] As shown in FIG. 1, the processing unit 71 acquires first data DA1. The first data DA1 may be obtained, for example, from an operation control unit 87 included in the magnetic recording and reproducing apparatus 210. For example, the first data DA1 includes information MS1 measured regarding the vibration state of the magnetic recording and reproducing 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 may include PES.

[0020] The processing unit 71 determines, for example, one of the plurality of classifications 75 (classification Vx) corresponding to the acquired first data DA1. And one of the plurality of sets of setting parameters 76 (set of setting parameters Px) corresponding to the determined one (classification Vx) of the plurality of classifications 75 can be acquired from the storage unit 72.

[0021] The processing unit 71 can supply the set of setting parameters Px acquired from the storage unit 72 to the operation control unit 87. The operation control unit 87 performs various control operations based on the set of setting parameters Px. The operation of the magnetic recording and reproducing apparatus 210 is controlled by appropriate operation conditions (set of setting parameters Px) according to the measured information MS1. Thereby, the magnetic recording and reproducing apparatus 210 can operate under more appropriate operation conditions. More appropriate operations can be performed.

[0022] Thus, in the embodiment, the processing unit 71 can acquire one of the plurality of sets of setting parameters 76 from the storage unit 72. The above one of the plurality of sets of setting parameters 76 acquired from the storage unit 72 corresponds to one of the plurality of classifications 75 corresponding to the first data DA1 including the measured information MS1. According to the embodiment, an operation condition determination apparatus that can determine more appropriate operation conditions can be provided.

[0023] For example, there is a reference example of obtaining optimal operating conditions by performing calculations based on PES. In this case, calculations are performed based on the measurement results of PES. Therefore, the time required to derive the operating conditions is long. A time delay is likely to occur.

[0024] In contrast, in the embodiment, for example, PES (an example of the first data DA1 related to the vibration state) is obtained, and one of the plurality of classifications 75 (classification Vx) corresponding to the PES is derived. That is, it is not necessary to perform calculations for appropriate operating conditions based on PES. It is only necessary to acquire the set of setting parameters Px corresponding to one of the plurality of classifications 75 (classification Vx) from the storage unit 72. As a result, the time for determining the operating conditions is short. Since the time is short, for example, even when the vibration state changes, appropriate operating conditions can be provided following the change in time. In the embodiment, the circuit for calculations also becomes simple.

[0025] In the embodiment, one of the plurality of sets of setting parameters 76 determined (set of setting parameters Px) may include, for example, at least any one of a parameter related to the recording current of the magnetic recording and reproducing apparatus 210, a parameter related to the reproduction conditions of the magnetic recording and reproducing apparatus 210, a parameter related to the track refresh threshold of the magnetic recording and reproducing apparatus 210, a parameter related to the floating state of the magnetic head 80H of the magnetic recording and reproducing apparatus 210, a parameter related to the seek control of the magnetic recording and reproducing apparatus 210, and a parameter related to the signal processing conditions of the magnetic recording and reproducing apparatus 210.

[0026] In the embodiment, for example, the recording current may be controlled (for example, changed) by the set of setting parameters Px determined based on the measured information MS1 (first data DA1). In this case, for example, the SOVA BER (soft-output viterbi algorithm bit error rate) can be improved.

[0027] For example, the floating state of the magnetic head 80H may be controlled (e.g., changed) by the 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 floating state includes, for example, the distance between the magnetic recording medium 80 and the magnetic head 80H.

[0028] For example, the seek control operation may be controlled (e.g., changed) by the set of setting parameters Px determined based on the measured information MS1 (first data DA1). In this case, for example, the I / O (input / output) performance is improved.

[0029] As described above, the processing unit 71 can determine one (classification Vx) of the plurality of classifications 75 corresponding to the first data DA1. The processing unit 71 can acquire, from the storage unit 72, one (set of setting parameters Px) of the plurality of sets of setting parameters 76 according to one (classification Vx) of the determined plurality of classifications 75.

[0030] As shown in FIG. 1, in the embodiment, the determination of one (classification Vx) of the plurality of classifications 75 may be performed by processing information including the first data DA1 with a neural network (NN) 71a. In the neural network 71a, machine learning is performed using, as teacher data, the information including the first data DA1 and the plurality of classifications 75 related to the vibration state of the magnetic recording and reproducing apparatus 210. By the processing by the neural network 71a, one (classification Vx) of the plurality of classifications 75 corresponding to the first data DA1 can be efficiently determined with high accuracy.

[0031] As shown in Fig. 1, the information including the first data DA1 may include the second data DA2 regarding the magnetic recording and reproducing apparatus 210. The second data DA2 may include acceleration information obtained by the acceleration sensor 80A provided in the magnetic recording and reproducing apparatus 210. The second data DA2 may include track refresh frequency information in the magnetic recording and reproducing apparatus 210. The second data DA2 may include Write error frequency information or Read error frequency information in the magnetic recording and reproducing apparatus 210. By using the second data DA2 as auxiliary information, one (classification Vx) of the plurality of classifications 75 corresponding to the information MS1 measured regarding the vibration state can be derived more accurately. "Write" corresponds to "recording". "Read" corresponds to "reproduction".

[0032] Fig. 2 is a schematic diagram illustrating the operation condition determination apparatus and the magnetic recording and reproducing apparatus according to the first embodiment. As shown in Fig. 2, in the operation condition determination apparatus 70, the storage unit 72 may be communicable with the server 73. The processing unit 71 may be communicable with the server 73. For example, the storage unit 72 may be communicable with the server 73 via the processing unit 71. Any method of wired or wireless can be applied to the communication.

[0033] The storage unit 72 may be able to update at least any one of the plurality of classifications 75 and the plurality of sets of setting parameters 76. For example, the server 73 may perform the update. For example, the internal parameters of the model of the neural network 71a may be updatable. For example, in response to a change in the internal parameters of the model of the neural network 71a, the plurality of classifications 75 may be updatable.

[0034] The magnetic recording and reproducing apparatus 210 (see Fig. 1) or the magnetic recording and reproducing apparatus 211 (see Fig. 2) according to the embodiment includes the above-described operation condition determination apparatus 70. The magnetic recording and reproducing apparatus 210 or 21 1 includes a magnetic recording medium 80, a magnetic head 80H, and an operation control unit 87. The magnetic head 80H can record and reproduce information on the magnetic recording medium 80.

[0035] The operation control unit 87 can control the operation of at least one of the magnetic recording medium 80 and the magnetic head 80H based on one of the plurality of setting parameter sets 76 (the setting parameter set Px). A more appropriate operation corresponding to the vibration state can be performed.

[0036] (Second Embodiment) The magnetic recording and reproducing system according to the second embodiment includes, for example, the magnetic recording and reproducing system 310 (see FIG. 1) or the magnetic recording and reproducing system 311 (see FIG. 2). Hereinafter, the magnetic recording and reproducing system 311 will be described.

[0037] The magnetic recording and reproducing system 311 includes the above-described operation condition determination device 70. The magnetic recording and reproducing system 311 may include a server 73. The server 73 may be able to update at least one of the plurality of classifications 75 and the plurality of setting parameter sets 76 stored in the storage unit 72.

[0038] The magnetic recording and reproducing system 311 may include a plurality of magnetic recording and reproducing devices 211. The processing unit 71 may acquire one of the plurality of setting parameter sets 76 (the setting parameter set P1) from the storage unit 72 and supply it to the plurality of magnetic recording and reproducing devices 211.

[0039] In the magnetic recording and reproducing system 311, the processing unit 71 may be capable of machine learning. The machine learning may be performed, for example, using, as teacher data, information including the first data DA1 and a plurality of classifications 75 related to information corresponding to the vibration states of the plurality of magnetic recording and reproducing devices 211. The machine learning may be performed, for example, via the server 73.

[0040] In the magnetic recording and reproducing system 310 or 311 according to the embodiment, a plurality of elements (for example, the processing unit 71 and the storage unit 72, etc.) may be provided at different locations. Information may be transmitted and received by any communication method. For example, a plurality of parts included in the processing unit 71 (for example, a plurality of neural networks, etc.) may be provided at different locations. In one example, the processing unit 71 is provided in the magnetic recording and reproducing device, and the storage unit 72 is provided in the server 73. Communication may be performed between the magnetic recording and reproducing device and the server 73 by any method.

[0041] FIG. 3 is a schematic diagram illustrating an operating condition determination device according to the embodiment. As shown in FIG. 3, the operating condition determination device 70 includes a processing unit 71 and a storage unit 72. The processing unit 71 is, for example, an electric circuit. The storage unit 72 may include, for example, at least one of a ROM (Read Only Memory) and a RAM (Random Access Memory). As the storage unit 72, for example, a part of the recording unit 80D may be used.

[0042] The operating condition determination device 70 may include a display unit 79b and an input unit 79c, etc. The display unit 79b may include various displays. The input unit 79c includes, for example, a device having an operation function (for example, a keyboard, a mouse, a touch input panel, or a voice recognition input device, etc.).

[0043] Among the plurality of elements included in the operating condition determination device 70, they can communicate with each other by at least one of wireless and wired methods. The locations where the plurality of elements included in the operating condition determination device 70 are provided may be different from each other. As the operating condition determination device 70, for example, a general-purpose computer may be used. As the operating condition determination device 70, for example, a plurality of computers connected to each other may be used. As at least a part of the operating condition determination device 70 (for example, the processing unit 71, etc.), a dedicated circuit may be used. As the operating condition determination device 70, for example, a plurality of circuits connected to each other may be used.

[0044] An embodiment may include a program. The program causes a computer (operation condition determination device 70) to perform the above-described operations. An embodiment may include a storage medium storing the above-described program.

[0045] An embodiment may include the following configuration (for example, a technical solution). (Configuration 1) A storage unit, A processing unit, and the storage unit can store a plurality of classifications regarding information corresponding to the vibration state of the magnetic recording and reproducing device and a plurality of sets of setting parameters regarding the operation of the magnetic recording and reproducing device, and the plurality of sets of setting parameters correspond to the plurality of classifications, the processing unit acquires first data, the first data including the measured information of the vibration state of the magnetic recording and reproducing device, the processing unit can acquire one of the plurality of sets of setting parameters from the storage unit, and the one of the plurality of sets of setting parameters corresponds to one of the plurality of classifications corresponding to the first data, an operation condition determination device.

[0046] (Configuration 2) The first data includes PES (Position Error Signal), the operation condition determination device according to Configuration 1.

[0047] (Configuration 3) The PES is obtained from a servo controller included in the magnetic recording and reproducing device, the operation condition determination device according to Configuration 2.

[0048] (Configuration 4) The processing unit can determine one of the plurality of classifications corresponding to the first data, the processing unit can acquire one of the plurality of sets of setting parameters corresponding to the determined one of the plurality of classifications from the storage unit, the operation condition determination device according to any one of Configurations 1 to 3.

[0049] (Configuration 5) The determination of the one of the plurality of classifications is performed by processing information including the first data with a neural network, and the operation condition determination device according to Configuration 4.

[0050] (Configuration 6) The neural network is machine-learned using, as teacher data, information including the first data and the plurality of classifications related to the information corresponding to the vibration state of the magnetic recording and reproducing apparatus, and the operation condition determination device according to Configuration 5.

[0051] (Configuration 7) The internal parameters of the model of the neural network are updatable, The plurality of classifications are updatable, and the operation condition determination device according to Configuration 5 or 6.

[0052] (Configuration 8) The information including the first data includes second data related to the magnetic recording and reproducing apparatus, and the operation condition determination device according to any one of Configurations 1 to 7.

[0053] (Configuration 9) The second data includes at least one selected from the group consisting of acceleration information obtained by an acceleration sensor provided in the magnetic recording and reproducing apparatus, track refresh frequency information in the magnetic recording and reproducing apparatus, Write error frequency information in the magnetic recording and reproducing apparatus, and Read error frequency information in the magnetic recording and reproducing apparatus, and the operation condition determination device according to Configuration 8.

[0054] (Configuration 10) One of the plurality of sets of setting parameters includes at least any one of a parameter related to a recording current of the magnetic recording and reproducing apparatus, a parameter related to a reproduction condition of the magnetic recording and reproducing apparatus, a parameter related to a track refresh threshold of the magnetic recording and reproducing apparatus, a parameter related to a floating state of a magnetic head of the magnetic recording and reproducing apparatus, a parameter related to a seek control of the magnetic recording and reproducing apparatus, and a parameter related to a signal processing condition of the magnetic recording and reproducing apparatus. The operation condition determination device according to any one of Configurations 1 to 9.

[0055] (Configuration 11) The storage unit is capable of updating at least any one of the plurality of classifications and the plurality of sets of setting parameters. The operation condition determination device according to any one of Configurations 1 to 10.

[0056] (Configuration 12) The storage unit is communicable with a server. The server is capable of performing the update. The operation condition determination device according to Configuration 11.

[0057] (Configuration 13) The processing unit and the storage unit are communicable via a server. The operation condition determination device according to any one of Configurations 1 to 11.

[0058] (Configuration 14) The processing unit is capable of supplying the one of the plurality of sets of setting parameters acquired from the storage unit to an operation control unit included in the magnetic recording and reproducing apparatus. The operation condition determination device according to any one of Configurations 1 to 13.

[0059] (Configuration 15) A magnetic recording and reproducing apparatus including the operation condition determination device according to any one of Configurations 1 to 13.

[0060] (Configuration 16) A magnetic recording medium, A magnetic head capable of recording and reproducing information on the magnetic recording medium, An operation control unit, further comprising The magnetic recording and reproducing apparatus according to Configuration 15, wherein the operation control unit is capable of controlling the operation of at least one of the magnetic recording medium and the magnetic head based on one of the plurality of sets of setting parameters.

[0061] (Configuration 17) A magnetic recording and reproducing system including the operation condition determination device according to any one of Configurations 1 to 10.

[0062] (Configuration 18) further comprising a server The magnetic recording and reproducing system according to Configuration 17, wherein the server is capable of updating at least one of the plurality of classifications and the plurality of sets of setting parameters stored in the storage unit.

[0063] (Configuration 19) further comprising a plurality of the magnetic recording and reproducing apparatuses The magnetic recording and reproducing system according to Configuration 17 or 18, wherein the processing unit can acquire the one of the plurality of sets of setting parameters from the storage unit and supply it to the plurality of magnetic recording and reproducing apparatuses.

[0064] (Configuration 20) further comprising a plurality of the magnetic recording and reproducing apparatuses The magnetic recording and reproducing system according to Configuration 17 or 19, wherein the processing unit can perform machine learning using, as teacher data, information including the first data and the plurality of classifications related to the information corresponding to the vibration state, with respect to the plurality of magnetic recording and reproducing apparatuses.

[0065] According to the embodiment, an operation condition determination device, a magnetic recording and reproducing apparatus, and a magnetic recording and reproducing system that can determine more appropriate operation conditions can be provided.

[0066] 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, regarding the specific configurations of each element such as a control unit, a processing unit, and a recording unit included in an operation condition determination device, a magnetic recording and reproducing device, and a magnetic recording and reproducing system, those skilled in the art can appropriately select from the known range to implement the present invention in the same way and obtain the same effects as long as they are included in the scope of the present invention.

[0067] Combinations of any two or more elements of each example within a technically possible range are also included in the scope of the present invention as long as they include the gist of the present invention.

[0068] Based on the operation condition determination device, the magnetic recording and reproducing device, and the magnetic recording and reproducing system described above as embodiments of the present invention, all operation condition determination devices, magnetic recording and reproducing devices, and magnetic recording and reproducing systems that those skilled in the art can appropriately design and modify and implement also belong to the scope of the present invention as long as they include the gist of the present invention.

[0069] Those skilled in the art can conceive of various modification examples and correction examples within the scope of the idea of the present invention, and it is understood that those modification examples and correction examples also belong to the scope of the present invention.

[0070] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and its equivalent scope.

Description of Reference Numerals

[0071] 70... Operation condition determination device, 71... Processing unit, 71a... Neural network, 72... Memory unit, 75... Classification, 76... Set of setting parameters, 79b... Display unit, 79c... Input unit, 80... Magnetic recording medium, 80A... Acceleration sensor, 80D... Recording unit, 80H... Magnetic head, 80R... Recording and playback unit, 87... Operation 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 and second data, MS1... Information, P1 to P3... First to third sets of setting parameters, Px... Set of setting parameters, V1 to V3... First to third classifications, Vx... Classification

Claims

1. A memory unit, A processing unit, An operating condition determination device including the above, A plurality of magnetic recording and reproducing devices, Comprising, The operating condition determination device, The memory unit can store a plurality of classifications regarding information corresponding to the vibration state of the magnetic recording and reproducing device, and a plurality of sets of setting parameters regarding the operation of the magnetic recording and reproducing device. The plurality of sets of setting parameters correspond to the plurality of classifications, The processing unit acquires first data, and the first data includes measured information on the vibration state of the magnetic recording and reproducing device, The processing unit can acquire one of the plurality of sets of setting parameters from the memory unit, and the one of the plurality of sets of setting parameters corresponds to one of the plurality of classifications corresponding to the first data, A magnetic recording and reproducing system in which the processing unit can perform machine learning using, as teacher data, information including the first data and the plurality of classifications regarding information corresponding to the vibration state, with respect to the plurality of magnetic recording and reproducing devices.

2. The first data includes a PES (Position Error Signal). The magnetic recording and reproducing system according to Claim 1.

3. The processing unit can determine one of the plurality of classifications corresponding to the first data, The magnetic recording and reproducing system according to Claim 1 or 2, wherein the processing unit can acquire one of the plurality of sets of setting parameters corresponding to the one of the determined plurality of classifications from the memory unit.

4. The determination of the one of the plurality of classifications is performed by processing information including the first data with a neural network. The magnetic recording and reproducing system according to Claim 3.

5. The memory unit can update at least one of the plurality of classifications and the plurality of sets of setting parameters. The magnetic recording and reproducing system according to any one of Claims 1 to 4.

6. Further comprising a server, The server can update at least one of the plurality of classifications and the plurality of sets of setting parameters stored in the memory unit. The magnetic recording and reproducing system according to any one of Claims 1 to 5.

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