WO2023061215A1

WO2023061215A1 - Io processing method and system, and medium

Info

Publication number: WO2023061215A1
Application number: PCT/CN2022/121848
Authority: WO
Inventors: 范瑞春
Original assignee: 苏州浪潮智能科技有限公司
Priority date: 2021-10-15
Filing date: 2022-09-27
Publication date: 2023-04-20
Also published as: CN114138178B; CN114138178A

Abstract

Provided in the present application are an IO processing method and system, and a medium. The method comprises: respectively deploying data managers in a plurality of processors of a solid state disk, dividing the plurality of processors into several groups, and selecting a specified processor from each group according to a preset rule; using, as a main manager, the data manager deployed in the specified processor, and respectively using, as standby managers, the data managers deployed in other processors in the group where the specified processor is located; if the main manager has received an IO command, calculating data traffic that is currently being processed by the main manager, and determining whether the currently processed data traffic exceeds the maximum processing traffic thereof; and if the currently processed data traffic exceeds the maximum processing traffic, the main manager respectively checking data traffic to be processed of the corresponding standby managers, so as to select one of the standby managers as a selected manager, and forwarding the IO command to the selected manager, such that the selected manager processes the IO command. By means of the present application, the effect of managing data traffic is realized.

Description

IO processing method, system and medium

Cross References to Related Applications

This application claims the priority of a Chinese patent application filed on October 15, 2021 with the application number 202111205383.2 and titled "A Method and System for IO Processing" submitted to the China Patent Office, the entire contents of which are incorporated by reference in this application .

technical field

The present application relates to the field of computer technology, and in particular to an IO processing method, a corresponding system, and a corresponding non-volatile computer-readable storage medium.

Background technique

For SSD (Solid State Disk or Solid State Drive, solid state disk) products, the delay jitter in QoS (Quality of Service, service quality) is a very important performance measurement index. Latency jitter can measure the stability of the SSD, and the smaller the jitter, the better the stability of the SSD.

Most of the existing SSDs have multiple processors, because DM (Data Manager, Data Management Module) is one of the key modules that affect SSD performance. In theory, the more DMs, the greater the maximum processing capacity of SSD. The higher, so in the prior art, a DM will be deployed on each processor, and each DM is in an equal position, and the controller receives IO commands from the host (referring to IN/OUT instructions, which are computer A part of the command system, which does not directly control the transmission of I/O data, is responsible for starting and stopping the process of I/O, querying the status of channels and I/O devices, and controlling the channel to perform certain operations) and will be evenly distributed to each DM to process. In order to ensure the maximum bandwidth, the number of DMs cannot be reduced.

There is a big disadvantage in the above-mentioned prior art: because there are other processing modules to be deployed in the SSD besides the DM, and because each processor is deployed with a DM, there must be a situation where multiple modules share one processor , resulting in a processor needing to switch between the tasks of multiple modules, resulting in relatively large delay jitter and poor QoS performance of the SSD.

Contents of the invention

In view of this, the purpose of this application is to propose an IO processing method and system to solve the problem of large delay and jitter caused by each processor of the solid state disk in the prior art due to the need to process the data management module and multiple other modules. question.

Based on the above purpose, the present application provides a method for processing IO, comprising the following steps:

Deploy the data management module in the multiple processors of the solid-state hard drive, divide the multiple processors into several groups, and select the specified processor in each group according to preset rules;

The data management module deployed in the specified processor is used as the main management module, and the data management modules deployed in other processors in the group where the specified processor is located are respectively used as the standby management modules;

In response to the main management module receiving the IO command, calculate its current processing data flow, and determine whether the currently processed data flow exceeds its maximum processing flow;

In response to the currently processed data flow exceeding the maximum processing flow, the main management module respectively checks the pending data flows of the corresponding standby management modules, so as to select one of the standby management modules as the selected management module based on each pending data flow , and forward the IO command to the selected management module, so that the selected management module processes the IO command.

In some embodiments, selecting a designated processor in each group according to preset rules includes:

In each group, the processor with the fewest pending tasks is selected as the designated processor.

In some embodiments, selecting the processor with the fewest pending tasks in each group as the designated processor comprises:

In each group select the processor that deploys only the data management module as the designated processor.

In some embodiments, selecting one of the standby management modules as the selected management module based on each data flow to be processed comprises:

Select the standby management module with the least amount of data traffic to be processed as the selected management module.

In some embodiments, the method also includes:

In response to the currently processed data traffic not exceeding the maximum processing traffic, the main management module processes the IO command.

In some embodiments, dividing the plurality of processors into groups includes:

Divide multiple processors evenly into groups.

In some embodiments, the IO command received by the main management module includes:

The main management module receives the IO command of the command submitting module.

In some embodiments, the method also includes:

In response to powering on the solid state disk, each data management module is assigned the same context descriptor.

In some embodiments, the method also includes:

In response to the master management module forwarding the IO command to the selected management module, the context descriptor occupied by the master management module is released.

Another aspect of the present application also provides an IO processing system, including:

The designated processor selection module is configured to deploy the data management module among the multiple processors of the solid-state disk, divide the multiple processors into several groups, and select the designated processor in each group according to preset rules;

The classification module is configured to use the data management module deployed in the specified processor as the main management module, and use the data management modules deployed in other processors in the group where the specified processor is located as the standby management module respectively;

The judging module is configured to calculate the data flow currently processed by the main management module in response to receiving an IO command, and judge whether the currently processed data flow exceeds its maximum processing flow; and

The IO processing module is configured to respond to the currently processed data flow exceeding the maximum processing flow, and the main management module respectively checks the pending data flow of each corresponding standby management module, so as to extract data from each standby management module based on each pending data flow One is selected as the selected management module, and the IO command is forwarded to the selected management module, so that the selected management module processes the IO command.

In yet another aspect of the present application, a computer-readable storage medium is provided, which stores computer program instructions, and implements the above method when the computer program instructions are executed by a processor.

In yet another aspect of the present application, a computer device is provided, including a memory and a processor, where a computer program is stored in the memory, and the computer program executes the above method when executed by the processor.

The application at least has the following beneficial technical effects:

The IO processing method of the present application divides the multiple data management modules of the solid-state disk into a main management module and a backup management module, and only uses the main management module under low task pressure, and the main management module sends the IO commands under high task pressure. It is forwarded to the standby management module for processing, which plays the role of data flow management, and can effectively reduce the delay jitter under the condition that the maximum bandwidth remains unchanged, thereby not only meeting the bandwidth performance requirements, but also improving the QoS performance requirements of the SSD .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can obtain other embodiments according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of an IO processing method provided according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an IO processing system provided according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a non-volatile computer-readable storage medium for implementing an IO processing method according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a hardware structure of a computer device for executing an IO processing method according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

It should be noted that all the expressions using "first" and "second" in the embodiments of this application are to distinguish two entities with the same name or different parameters. It can be seen that "first" and "second" " is only for the convenience of expression, and should not be understood as limiting the embodiment of the present application. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, of a process, method, system, product or other steps or elements inherent in a process, method, system, product, or device comprising a series of steps or elements.

Based on the above purpose, in the embodiment of the present application, an embodiment of an IO processing method is proposed. FIG. 1 is a schematic diagram of an embodiment of an IO processing method provided by the present application. As shown in Figure 1, the embodiment of the present application includes the following steps:

Step S10, deploy data management modules in multiple processors of the solid-state hard disk, divide the multiple processors into several groups, and select a designated processor in each group according to preset rules;

Step S20, using the data management module deployed in the specified processor as the main management module, and using the data management modules deployed in other processors in the group where the specified processor is located as the backup management module;

Step S30, in response to the main management module receiving the IO command, calculate its currently processed data flow, and determine whether the currently processed data flow exceeds its maximum processing flow;

Step S40, in response to the currently processed data flow exceeding the maximum processing flow, the main management module respectively checks the pending data flows of the corresponding standby management modules, so as to select one of the standby management modules based on each pending data flow. The management module is selected, and the IO command is forwarded to the selected management module, so that the selected management module processes the IO command.

In the embodiment of the present application, IO means data input (Input) and output (Output).

The processor of a solid-state drive (SSD) is the main control, which is essentially a small processor, and is similar to a mobile phone processor. It is an ARM architecture, and even high-end SSDs use a RISC architecture. Unit, central processing unit) and GPU (Graphics Processing Unit, graphics processing unit), the third largest computing core, used to control the storage order of information and maintain the normal operation of each flash memory unit.

The IO processing method of the embodiment of the present application divides the multiple data management modules of the solid-state disk into a main management module and a backup management module, and only uses the main management module under low task pressure, and the main management module under high task pressure. The IO command is forwarded to the standby management module for processing, which plays a role in data traffic management and can effectively reduce the delay jitter while the maximum bandwidth remains unchanged, thereby not only meeting the bandwidth performance requirements, but also improving the QoS of the SSD performance requirements.

In some embodiments, selecting the designated processor in each group according to a preset rule includes: selecting a processor with the fewest tasks to be processed in each group as the designated processor.

In some embodiments, selecting a processor with the fewest tasks to be processed in each group as the designated processor includes: selecting a processor in each group on which only the data management module is deployed as the designated processor.

In the above embodiment, if only the data management module is deployed in the designated processor and no other modules are deployed, the designated processor can focus on processing the tasks of the data management module without switching between different tasks, thereby effectively reducing the Latency jitter ensures the QoS (Quality of Service) performance of SSDs.

In some embodiments, selecting one of the standby management modules as the selected management module based on each data flow to be processed includes: selecting the standby management module with the least data flow to be processed as the selected management module.

In this embodiment, in order to ensure more efficient data processing corresponding to the IO command, the standby management module with the least data flow to be processed is selected as the selected management module.

In some embodiments, the method further includes: processing the IO command by the main management module in response to the currently processed data traffic not exceeding the maximum processing traffic.

Specifically, the data management module is respectively deployed in multiple processors of the solid-state hard disk, and the multiple processors are divided into several groups, and the specified processor is selected in each group according to preset rules; The data management module acts as the main management module, and the data management modules deployed in other processors in the group where the specified processor is located are respectively used as the standby management modules; if the main management module receives an IO command, it calculates the data flow it is currently processing, and Judging whether the currently processed data flow exceeds its maximum processing flow; if the currently processed data flow does not exceed the maximum processing flow, the main management module processes the IO command.

In some embodiments, dividing the plurality of processors into several groups includes: equally dividing the plurality of processors into several groups.

In this embodiment, the grouping method for multiple processors includes but is not limited to average grouping, and an appropriate grouping method can be selected according to actual conditions. If the average grouping method is selected, adjacent processors can be grouped into a group according to the positions of multiple processors on the SSD.

In some embodiments, the main management module receiving the IO command includes: the main management module receiving the IO command from the command submission module.

In this embodiment, the command submission module is SubQ Manager, which is responsible for the submission of SubQ instructions. In this embodiment, the configuration of the SubQ Manager is modified so that it can only send IO commands to the main management module, but cannot send IO commands to the standby management module.

In some embodiments, the method further includes: in response to powering on the solid state disk, assigning the same context descriptor to each data management module.

In some embodiments, the method further includes releasing the context descriptor occupied by the master management module in response to the master management module forwarding the IO command to the selected management module.

In the above embodiment, the context descriptor includes Command, dataframe and so on. Descriptor refers to a file descriptor. The kernel uses file descriptors to access files. When opening an existing file or creating a new file, the kernel returns a file descriptor. Reading and writing files also requires the use of file descriptors to specify the file to be read and written. A file descriptor is a handle represented by an unsigned integer that a process uses to identify an open file. Each file descriptor will correspond to an open file, and at the same time, different file descriptors will also point to the same file. The same file can be opened by different processes or multiple times in the same process. A file descriptor is associated with a file object that includes relevant information (such as the file's opening mode, the file's location type, the file's initial type, etc.), which is called the file's context.

The IO processing method of an exemplary embodiment of the present application is as follows:

(1) Assume that there are 8 processors on the solid-state drive (SSD), and deploy a data management module (DM) on each processor. When powering on and initializing, each DM is assigned the same context description such as Command and dataframe character, to ensure that each DM can exert its maximum data processing capacity.

(2) Divide the 8 DMs into two groups on average, DM0, DM1, DM2, and DM3 are one group, and DM4, DM5, DM6, and DM7 are another group. In each group, select the DM deployed on the processor with fewer tasks as The main DM (ie, the main management module), and the other three serve as standby DMs (ie, standby management modules). Fewer tasks means that only DM is deployed on the processor, and no other modules are deployed.

(3) Modify the configuration of SubQ Manager (command submission module), and only allow SubQ Manager to send IO commands to two main DMs, and cannot send IO commands to six standby DMs.

(4) After the main DM receives the IO command, it first calculates the currently processed traffic. If the currently processed traffic does not exceed the maximum processing capacity, it processes the IO command and does not forward it. Through traffic calculation, if the traffic currently processed by the main DM exceeds the maximum processing capacity, then the main DM checks the traffic processing status of the three backup DMs in the group where the DM is located, selects a backup DM with the least traffic to be processed, and then The IO command is forwarded to the selected standby DM, so that the standby DM can help process the IO command. After the forwarding is successful, the active DM immediately releases the occupied context descriptor.

Thus, the master DM can not only process data, but also regulate flow, thereby playing the role of data flow control.

In the embodiment of the present application, an IO processing system is also provided. FIG. 2 is a schematic diagram of an embodiment of the IO processing system provided by the present application. As shown in Fig. 2, a kind of IO processing system comprises: designated processor selection module 10, is configured to deploy the data management module respectively in a plurality of processors of solid-state hard disk, and a plurality of processors are divided into several groups, and in Select the specified processor in each group according to the preset rules; the classification module 20 is configured to use the data management module deployed in the specified processor as the main management module, and use the data management module deployed in other processors in the group where the specified processor is located The data management modules are respectively used as standby management modules; the judging module 30 is configured to respond to the main management module receiving an IO command, calculate its current processing data flow, and judge whether the currently processed data flow exceeds its maximum processing flow; and IO The processing module 40 is configured to, in response to the currently processed data flow exceeding the maximum processing flow, the main management module respectively checks the pending data flow of each corresponding standby management module, so as to extract data from each standby management module based on each pending data flow One is selected as the selected management module, and the IO command is forwarded to the selected management module, so that the selected management module processes the IO command.

In some embodiments, the designated processor selection module 10 includes a pending task determination module configured to select a processor with the least pending tasks in each group as the designated processor.

In some embodiments, the to-be-processed task determination module includes a deployment module configured to select, in each group, only processors that deploy the data management module as designated processors.

In some embodiments, the IO processing module 40 includes a standby management module selection module configured to select the standby management module with the least data flow to be processed as the selected management module.

In some embodiments, the system further includes a main management module processing module configured to process the IO command by the main management module in response to the currently processed data flow not exceeding the maximum processing flow.

In some embodiments, the designated processor selection module 10 includes a grouping module configured to equally divide the plurality of processors into several groups.

In some embodiments, the judging module 30 includes an IO command receiving module configured for the main management module to receive the IO command from the command submitting module.

In some embodiments, the system further includes a descriptor allocation module configured to allocate the same context descriptor to each data management module in response to the solid state disk being powered on.

In some embodiments, the system further includes a descriptor release module configured to release the context descriptor occupied by the main management module in response to the main management module forwarding the IO command to the selected management module.

The IO processing system of the embodiment of the present application divides the multiple data management modules of the solid-state disk into a main management module and a backup management module, and only uses the main management module under low task pressure, and the main management module under high task pressure. The IO command is forwarded to the standby management module for processing, which plays a role in data traffic management and can effectively reduce the delay jitter while the maximum bandwidth remains unchanged, thereby not only meeting the bandwidth performance requirements, but also improving the QoS of the SSD performance requirements.

In the embodiment of the present application, a non-volatile computer-readable storage medium is also provided, and FIG. 3 shows a schematic diagram of a non-volatile computer-readable storage medium for implementing the IO processing method provided according to the embodiment of the present application. . As shown in FIG. 3 , a non-transitory computer readable storage medium 3 stores computer program instructions 31 . When the computer program instructions 31 are executed by the processor, the following steps are realized:

Deploy the data management module in the multiple processors of the solid-state hard drive, divide the multiple processors into several groups, and select the specified processor in each group according to the preset rules;

In some embodiments, the step further includes: processing the IO command by the main management module in response to the currently processed data traffic not exceeding the maximum processing traffic.

In some embodiments, the step further includes: in response to powering on the solid state disk, assigning the same context descriptor to each data management module.

In some embodiments, the steps further include releasing the context descriptor occupied by the master management module in response to the master management module forwarding the IO command to the selected management module.

It should be understood that all the implementations, features and advantages described above with respect to the IO processing method according to the present application are equally applicable to the IO processing system and the storage medium according to the present application without conflicting with each other.

In the embodiment of the present application, a computer device is also provided, including a memory 402 and a processor 401 as shown in FIG. The method of any one of the embodiments.

As shown in FIG. 4 , it is a schematic diagram of a hardware structure of a computer device implementing the IO processing method provided by the present application. Taking the computer equipment shown in FIG. 4 as an example, the computer equipment includes a processor 401 and a memory 402 , and may further include: an input device 403 and an output device 404 . The processor 401, the memory 402, the input device 403, and the output device 404 may be connected via a bus or in other ways. In FIG. 4, connection via a bus is taken as an example. The input device 403 can receive input numbers or character information, and generate key signal input related to user settings and function control of the IO processing system. The output device 404 may include a display device such as a display screen.

The memory 402, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs and modules, such as program instructions corresponding to the IO processing method in the embodiment of the present application /module. The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created by using the IO processing method, and the like. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some embodiments, the memory 402 may optionally include memory that is remotely located relative to the processor 401, and these remote memories may be connected to the local module through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The processor 401 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 402, that is, implements the IO processing method of the above method embodiment.

Finally, it should be noted that the computer-readable storage medium (eg, memory) herein may be a volatile memory or a nonvolatile memory, or may include both volatile memory and nonvolatile memory. By way of example and not limitation, nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory memory. Volatile memory can include random access memory (RAM), which can act as external cache memory. By way of example and not limitation, RAM is available in various forms such as Synchronous RAM (DRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). Storage devices of the disclosed aspects are intended to include, but are not limited to, these and other suitable types of memory.

Those of skill would also appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described generally in terms of their functionality. Whether such functionality is implemented as software or as hardware depends upon the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the functions in various ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope disclosed in the embodiments of the present application.

The various exemplary logic blocks, modules, and circuits described in connection with the disclosure herein may be implemented or performed using the following components designed to perform the functions herein: general purpose processors, digital signal processing (Digital Signal Processing, DSP for short) ), application specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), field programmable gate array (Field Programmable Gate Array, referred to as FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components or components of these components any combination. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP, and/or any other such configuration.

The above are the exemplary embodiments disclosed in the present application, but it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed in the present application defined by the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present application may be described or required in an individual form, they may also be understood as plural unless explicitly limited to a singular number.

It should be understood that as used herein, the singular form "a" and "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items. The serial numbers of the embodiments disclosed in the above-mentioned embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope (including claims) disclosed by the embodiments of the present application is limited to these examples; under the idea of the embodiments of the present application , the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present application, which are not provided in details for the sake of brevity. Therefore, within the spirit and principle of the embodiments of the present application, any omissions, modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the embodiments of the present application.

Claims

A kind of IO processing method is characterized in that, comprises the following steps:

Deploying data management modules in multiple processors of the solid-state hard drive, dividing the multiple processors into several groups, and selecting a designated processor in each group according to preset rules;

The data management module deployed in the specified processor is used as the main management module, and the data management modules deployed in other processors in the group where the specified processor is located are respectively used as backup management modules;

Responsive to the main management module receiving an IO command, calculate its currently processed data flow, and determine whether the currently processed data flow exceeds its maximum processing flow;

In response to the currently processed data flow exceeding the maximum processing flow, the main management module respectively checks the pending data flow of each corresponding standby management module, so as to select from each standby management module based on each pending data flow One serves as the selected management module, and forwards the IO command to the selected management module, so that the selected management module processes the IO command.
The method according to claim 1, wherein selecting a designated processor according to preset rules in each group comprises:

In each group, the processor with the fewest pending tasks is selected as the designated processor.
The method according to claim 2, wherein selecting the processor with the fewest tasks to be processed in each group as the designated processor comprises:

In each group, only the processor on which the data management module is deployed is selected as the designated processor.
The method according to claim 3, further comprising:

When the designated processor on which only the data management module is deployed processes the tasks of the data management module, switching between different tasks is not performed.
The method according to claim 1, wherein selecting one of the standby management modules as the selected management module based on each data flow to be processed comprises:

Select the standby management module with the least amount of data traffic to be processed as the selected management module.
The method according to claim 1, further comprising:

In response to the currently processed data traffic not exceeding the maximum processing traffic, the main management module processes the IO command.
The method according to claim 1 or 6, wherein the currently processed data flow exceeds the maximum processing flow, indicating that the designated processor is under low task pressure, and the currently processed data flow does not exceed the maximum processing flow Traffic indicates that the specified processor is under high task pressure.
The method according to claim 1, wherein dividing the plurality of processors into several groups comprises:

The plurality of processors are evenly divided into several groups.
The method according to claim 8, wherein said dividing the plurality of processors into several groups on average comprises:

According to the location of multiple processors on the solid state disk, multiple adjacent processors are grouped into one group.
The method according to claim 1, wherein the receiving the IO command by the main management module comprises:

The main management module receives the IO command from the command submission module.
The method according to claim 9, further comprising:

Modifying the configuration of the command submitting module to only send the IO command to the main management module, and not send the IO command to the standby management module.
The method according to claim 10 or 11, wherein the command submission module is SubQ Manager, which is responsible for the submission of SubQ instructions.
The method according to claim 1, further comprising:

In response to powering on the solid state disk, each data management module is assigned the same context descriptor.
The method according to claim 13, further comprising:

Responsive to the primary management module forwarding the IO command to the selected management module, releasing the context descriptor occupied by the primary management module.
The method according to claim 13 or 14, wherein the context descriptor is used to represent a file descriptor.
The method according to claim 15, wherein the file descriptor is associated with a file object including related information; wherein the related information includes at least one of the following: the opening mode of the file, the location type of the file, The initial type of the file.
A kind of IO processing system is characterized in that, comprising:

The designated processor selection module is configured to respectively deploy the data management module among the multiple processors of the solid-state disk, divide the multiple processors into several groups, and select the designated processor in each group according to preset rules ;

The classification module is configured to use the data management module deployed in the specified processor as the main management module, and use the data management modules deployed in other processors in the group where the specified processor is located as the backup management module respectively;

A judging module configured to calculate the currently processed data flow in response to the main management module receiving an IO command, and judge whether the currently processed data flow exceeds its maximum processing flow; and

The IO processing module is configured to respond to the currently processed data flow exceeding the maximum processing flow, and the main management module respectively checks the pending data flows of the corresponding standby management modules, so as to base on each pending data flow Select one of the standby management modules as the selected management module, and forward the IO command to the selected management module, so that the selected management module processes the IO command.
A non-volatile computer-readable storage medium, characterized in that it stores computer program instructions, and when the computer program instructions are executed by a processor, the following steps are implemented:

Deploying data management modules in multiple processors of the solid-state hard drive, dividing the multiple processors into several groups, and selecting a designated processor in each group according to preset rules;

The data management module deployed in the specified processor is used as the main management module, and the data management modules deployed in other processors in the group where the specified processor is located are respectively used as backup management modules;

Responsive to the main management module receiving an IO command, calculate its currently processed data flow, and determine whether the currently processed data flow exceeds its maximum processing flow;

In response to the currently processed data flow exceeding the maximum processing flow, the main management module respectively checks the pending data flow of each corresponding standby management module, so as to select from each standby management module based on each pending data flow One serves as the selected management module, and forwards the IO command to the selected management module, so that the selected management module processes the IO command.