WO2017143804A1 - Method and apparatus for dynamic access of storage device in cloud storage system - Google Patents

Abstract

Embodiments of the present application provide a method and an apparatus for dynamic access of a storage device in a cloud storage system, applied to a storage node in a cloud storage system. The method comprises: identifying, when it is detected that a new first storage device is connected, the type of the first storage device; searching, according to the type of the first storage device, for a first target storage device library corresponding to the type of the first storage device; reading, according to the first target storage device library, a stored online standard interface and an online operating mode which corresponds to the type of the first storage device, wherein online standard interfaces and respective online operating modes corresponding to types of storage devices are stored in the first target storage device library; and enabling, according to the read online standard interface and online operating mode, the first storage device to access the cloud storage system. The embodiment of the present application can implement dynamic access of a storage device in a storage node.

Description

Method and device for dynamically accessing storage device in cloud storage system

The present application claims the priority of the Chinese Patent Application entitled "A Method and Apparatus for Dynamically Accessing a Storage Device in a Cloud Storage System" by the Chinese Patent Office on February 25, 2016, and the application number is 201610104338.0. This is incorporated herein by reference.

Technical field

The present application relates to the field of cloud storage technologies, and in particular, to a method and an apparatus for dynamically accessing a storage device in a cloud storage system.

Background technique

Cloud storage is a new concept extended and developed in the concept of cloud computing. It is an emerging network storage technology that refers to functions such as cluster applications, network technologies or distributed file systems. A system in which a plurality of different types of storage devices work together through application software to jointly provide data storage and service access functions.

A storage server in a cloud storage system may be referred to as a storage node, and a storage device used to store data in each storage node is referred to as a storage device, such as a disk, a Raid, an iScsi device, an FC (Fibre Channel, Fibre Channel) device, or the like. As the amount of data stored in the cloud storage system increases, in order to ensure that the cloud storage system can provide normal services, the cloud storage system usually needs to be expanded, that is, the cloud storage system needs to expand its storage space to store the data that needs to be stored in the cloud storage. In the system.

The existing cloud storage expansion method is mainly implemented by adding a new storage node, but this method has high cost and poor applicability.

Summary of the invention

An embodiment of the present invention provides a method and an apparatus for dynamically accessing a storage device in a cloud storage system to implement dynamic access of a storage device in a storage node. The specific technical solutions are as follows:

In a first aspect, the embodiment of the present application provides a method for dynamically accessing a storage device in a cloud storage system, which is applied to a storage node in a cloud storage system, where the method includes:

Identifying a type of the first storage device when detecting that a new first storage device is connected;

Determining, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device;

And downloading the saved online standard interface, and the online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface according to the first target storage device library. And an online operation mode corresponding to the type of each storage device;

The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode.

Further, before the accessing the first storage device to the cloud storage system, the method further includes:

Determining, according to the formatted identification information saved in the first storage device, whether the first storage device is formatted in the cloud storage system; if yes, creating the storage node in the storage node Index information of the first storage device; otherwise, outputting prompt information for formatting the first storage device.

Further, after outputting the prompt information for formatting the first storage device, the method further includes:

When receiving an instruction input by the user to format the first storage device, reading the saved formatting standard interface from the first target storage device library, and corresponding to the type of the first storage device Formatting operation mode;

The first storage device is formatted according to the formatted standard interface read and the formatted operation mode.

Further, the method further includes:

Identifying a type of the second storage device when detecting that the second storage device is offline;

Searching, according to the type of the second storage device, a second target storage device library corresponding to the type of the second storage device;

Reading the saved offline standard interface and the offline operation mode corresponding to the type of the second storage device according to the second target storage device library;

And deleting the second storage device from the cloud storage system according to the read offline standard interface and the offline operation mode.

Further, before the removing the second storage device from the cloud storage system, the method further includes:

Determining whether the second storage device is formatted in the cloud storage system; if yes, stopping all operations currently performed on the second storage device, deleting the second storage device saved in the storage node Indexing information and performing the step of removing the second storage device from the cloud storage system.

Further, the method further includes:

When it is determined that the third storage device has a data processing request to be processed, identifying a type of the third storage device, and searching for a third corresponding to the type of the third storage device according to the type of the third storage device Target storage device library;

Reading, according to the third target storage device library, a saved data processing standard interface, and a data processing operation mode corresponding to the type of the third storage device;

The data processing request is processed according to the read data processing standard interface and the data processing operation mode.

In a second aspect, the embodiment of the present application provides a device for dynamically accessing a storage device in a cloud storage system, which is applied to a storage node in a cloud storage system, where the device includes:

a first identifying module, configured to identify a type of the first storage device when detecting that a new first storage device is connected;

a first searching module, configured to search, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device;

a first reading module, configured to read the saved online standard interface according to the first target storage device library, and an online operation mode corresponding to the type of the first storage device, where the first target storage The device library stores an online standard interface, and an online operation mode corresponding to the type of each storage device;

An access module, configured to be used according to the online standard interface read by the first reading module In the online operation mode, the first storage device is connected to the cloud storage system.

Further, the device further includes:

a first determining module, configured to determine, according to the formatted identification information saved in the first storage device, the first storage device before the accessing the first storage device to the cloud storage system Whether the first storage device is formatted in the cloud storage system;

a creating module, configured to: when the first determining module determines that the result is yes, create index information of the first storage device in the storage node;

And an output module, configured to output prompt information for formatting the first storage device when the first determining module determines that the result is negative.

Further, the device further includes:

a second reading module, configured to, after the output module outputs the prompt information for formatting the first storage device, when receiving an instruction input by the user to format the first storage device, a first target storage device library, reading the saved format standard interface, and a format operation mode corresponding to the type of the first storage device;

And a formatting module, configured to format the first storage device according to the formatted standard interface read and the formatted operation mode.

Further, the device further includes:

a second identification module, configured to identify a type of the second storage device when detecting that the second storage device is offline;

a second search module, configured to search, according to the type of the second storage device, a second target storage device library corresponding to the type of the second storage device;

a third reading module, configured to read the saved offline standard interface according to the second target storage device library, and an offline operation mode corresponding to the type of the second storage device;

The removing module is configured to remove the second storage device from the cloud storage system according to the offline standard interface read by the third reading module and the offline operation mode.

Further, the device further includes:

a second determining module, configured to determine, before the removing module removes the second storage device from the cloud storage system, whether the second storage device is formatted in the cloud storage system ;

An execution module, configured to: when the second determination module determines that the result is YES, stop all operations on the second storage device, delete index information of the second storage device saved in the storage node, and Trigger the removal module.

Further, the device further includes:

a third identification module, configured to identify a type of the third storage device when determining that the third storage device has a data processing request to be processed, and search for the third storage according to the type of the third storage device a third target storage device library corresponding to the type of the device;

a fourth reading module, configured to read the saved data processing standard interface according to the third target storage device library, and a data processing operation manner corresponding to the type of the third storage device;

And a processing module, configured to process the data processing request according to the data processing standard interface read by the fourth reading module and the data processing operation mode.

In a third aspect, the present application provides a storage medium, where the storage medium is used to store executable program code for performing dynamics in a cloud storage system described in the present application at runtime Method of accessing a storage device.

In a fourth aspect, the application provides an application, where the application is configured to perform a method for dynamically accessing a storage device in a cloud storage system according to the present application at runtime.

In a fifth aspect, the application provides a storage node device, including:

a processor, a memory, a communication interface, and a bus;

The processor, the memory, and the communication interface are connected by the bus and complete communication with each other;

The memory stores executable program code;

The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, for performing a cloud storage system in the present application. A method of accessing a storage device.

The embodiment of the present invention provides a method and an apparatus for dynamically accessing a storage device in a cloud storage system, which are applied to a storage node in a cloud storage system, and the method includes: when detecting a new first storage device, identifying Type of the first storage device; searching for a first target storage device library corresponding to the type of the first storage device according to the type of the first storage device; reading according to the first target storage device library a saved online standard interface, and an online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface, and an online corresponding to the type of each storage device The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode. In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application and the technical solutions of the prior art, the following description of the embodiments and the drawings used in the prior art will be briefly introduced. Obviously, the drawings in the following description are only Some embodiments of the application may also be used to obtain other figures from those of ordinary skill in the art without departing from the scope of the invention.

FIG. 1 is a flowchart of a method for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 2 is another flowchart of a method for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 3 is a flowchart of a method for removing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 4 is another flowchart of a method for removing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of a data processing method in a cloud storage system according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an apparatus for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 7 is another schematic structural diagram of an apparatus for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 8 is another schematic structural diagram of an apparatus for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 9 is another schematic structural diagram of an apparatus for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure;

FIG. 10 is another schematic structural diagram of an apparatus for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following, in which the technical solutions in the embodiments of the present application are clearly and completely described. The embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings.

The method for dynamically accessing a storage device in a cloud storage system is applied to a storage node in a cloud storage system, as shown in FIG. 1 . The process includes the following steps:

S101. Identify a type of the first storage device when detecting that a new first storage device is connected.

In practical applications, storage nodes in a cloud storage device can be used to store data. Specifically, the storage node may use a storage device that has accessed the cloud storage system to store data, such as a disk, a Raid, an iScsi device, an FC device, and the like.

Generally, when a storage node is added to a cloud storage system, the storage device in the storage node The type, capacity, etc. of the equipment have been determined. However, as the amount of data stored in the storage node increases, the capacity of the storage device in the storage node may reach its maximum load and cannot store more data.

Therefore, in the embodiment of the present application, the storage node can access a new storage device to store more data.

Specifically, the storage node may detect whether a new first storage device is connected periodically (eg, 3 milliseconds, 5 milliseconds, 10 milliseconds, etc.) to access the first storage device into the cloud storage system. When detecting the connection of the new first storage device, the storage node can identify the type of the first storage device. The types of the foregoing storage devices may include, for example, a disk, a Raid, an iScsi device, an FC device, and the like.

It can be understood that for different types of storage devices, the storage node accesses the cloud storage system, and may need to use different access methods. If the access device is connected to the cloud storage system using an access method that does not correspond to the type of the storage device, the storage device may fail to access. Therefore, when the storage node detects the access to the new first storage device, the type of the first storage device may be first identified to access the first storage device to the cloud by using an access manner corresponding to the first storage device. Storage system to improve the success rate of access.

It should be noted that the new first storage device in this embodiment may be a relative concept, that is, the current storage device is just connected to the storage node. In actual circumstances, the first storage device may not be connected to the storage node before, or the first storage device is connected to the storage node before, and the connection is interrupted due to poor connection or other reasons, and then the first The storage device is reconnected to the storage node.

In addition, the new first storage device may be a storage device that has not been used before, or the first storage device may also be a storage device used in other cloud storage systems, other storage nodes, or even other systems. . As long as the current storage device is connected to the current storage node, the storage node determines that the connection of the new first storage device is detected, and identifies the type of the first storage device to A storage device is connected to the cloud storage system.

S102. Search for a first target storage device library corresponding to the type of the first storage device according to the type of the first storage device.

In the embodiment of the present application, since it is connected to the cloud storage system for different types of storage devices The access methods used by the system may be different. Therefore, in order to successfully connect different types of storage devices to the cloud storage system, the storage node may pre-build and save multiple storage device libraries.

Specifically, the storage node can build its corresponding storage device library for each type of storage device. Moreover, for each type of storage device, a unified standard interface and an operation mode corresponding to the type can be saved in the corresponding storage device library. The standard interface and the operation mode may include standard interfaces and operation modes corresponding to all types of operations performed on the storage device. For example, the method may include: an online standard interface and an operation mode, a formatted standard interface and an operation mode, and a downlink standard interface. And operation methods, etc.

Optionally, in order to correspond each storage device library with each type of storage device, identification information may be added for each storage device library. For example, for each storage device library, its identification information may be set to the type identification of the storage device corresponding to the storage device library.

Therefore, in the embodiment of the present application, after the storage node detects the connection of the new first storage device and identifies the type of the first storage device, the storage node may search for the first storage device according to the type of the first storage device. The target storage device library corresponding to the type, the first storage device is connected to the cloud storage system according to the online standard interface and the online operation mode in the target storage device library.

Specifically, when the type identifier of each storage device is used as the identifier information of each storage device library, when the storage node searches for the target storage device library corresponding to the type of the first storage device, the storage node may identify the identification information of each storage device library. And determining, by the storage device library whose identification information is the type identifier of the first storage device, a target storage device library corresponding to the type of the first storage device.

S103. Read the saved online standard interface according to the first target storage device library, and an online operation mode corresponding to the type of the first storage device.

After the storage node finds the target storage device library corresponding to the type of the first storage device, the storage online device may be read, and the saved online standard interface and the online operation mode corresponding to the type of the first storage device may be read. The first storage device is connected to the cloud storage system according to the online standard interface and the online operation mode.

S104. The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode.

After reading the online standard interface and the online operation mode, the storage node can be based on the online standard. The first storage device is connected to the cloud storage system by using the interface and the online operation mode. After the first storage device is connected to the cloud storage system, the storage node can use the first storage device to store data.

In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

Further, as shown in FIG. 2, the method for dynamically accessing a storage device in a cloud storage system provided by the embodiment of the present application may further include:

S105: Determine, according to the formatted identification information saved in the first storage device, whether the first storage device is formatted in the cloud storage system; if yes, execute step S106; otherwise, execute Step S107.

As described above, the new first storage device of the connection detected by the storage node may not be connected to the storage node before, or the first storage device is previously connected to the storage node, and the connection is caused due to poor connection or other reasons. Interrupted, after which the first storage device is reconnected to the storage node. In addition, the new first storage device may be a storage device that has not been used before, or the first storage device may also be a storage device used in other cloud storage systems, other storage nodes, or even other systems. .

Therefore, data may or may not be stored in the new first storage device of the connection detected by the storage node. Moreover, when data is stored in the first storage device, the data may be data in the cloud storage system or may not be data in the cloud storage system.

In the embodiment of the present application, in order to ensure that the data stored in the storage device accessed by the storage node is the data in the cloud storage system, the storage node accesses the storage device that has not accessed the cloud storage system before accessing the cloud storage system. You can format the storage device first. Moreover, only the storage device formatted in the cloud storage system can access the cloud storage system and perform data storage. The unformatted storage device in the cloud storage system does not access the cloud storage system, and therefore, the data in the cloud storage system is not stored.

In the embodiment of the present application, each format identifier of the storage device can be saved in each storage device. information. Specifically, for each storage device, the formatted identification information may include information such as identification information, formatting time, and the like of the system in which it is formatted.

Therefore, in the embodiment of the present application, before the first storage device is connected to the cloud storage system, the storage node may determine, according to its own formatted identification information saved in the first storage device, whether the first storage device is The cloud storage system has been formatted. For example, in the formatted identification information of the first storage device, the identifier information of the cloud storage system where the storage node is located may be searched. If found, the first storage device may be formatted in the cloud storage system. If not found, it can be indicated that the first storage device is not formatted in the cloud storage system.

It can be understood that if the first storage device is formatted in the cloud storage system, it may indicate that the first storage device has previously accessed the cloud storage system, and the current reconnection may be caused by a bad connection or the like. Reconnect after the line. Therefore, the data in the cloud storage system may be stored in the first storage device. In this case, step S106 may be performed to create index information of the first storage device in the storage node to reuse the first storage device. To store data.

If the first storage device is not formatted in the cloud storage system, it may indicate that the first storage device has not accessed the cloud storage system before, and the current access is the first time that the first storage device accesses the cloud storage system. In the case of the cloud storage system, in step S107, the prompting information for formatting the first storage device may be output to format the first storage device and further access the cloud storage system.

S106. Create index information of the first storage device in the storage node.

If the first storage device is formatted in the cloud storage system, index information of the first storage device may be created in the storage node to reuse the first storage device to store data. The above index information may be, for example, key information of data stored in the first storage device.

It should be noted that, in this step, when the storage node creates the index information of the first storage device, any method existing in the prior art may be used, which is not limited in this application.

S107. Output prompt information for formatting the first storage device.

If the first storage device is not formatted in the cloud storage system, the prompt information for formatting the first storage device may be output to perform corresponding operations according to an instruction input by the user.

In the embodiment of the present application, when the first storage device is formatted, the prompt information for formatting the first storage device may be first output, so that the user confirms whether to format the first storage device, Avoid accidentally deleting data in the first storage device caused by direct formatting.

S108, when receiving an instruction input by the user to format the first storage device, reading the saved formatting standard interface from the first target storage device library, and the type of the first storage device The corresponding format operation mode.

When an instruction input by the user to format the first storage device is received, it indicates that the user confirms that the first storage device can be formatted. In this case, the storage node may read the saved format standard interface from the first target storage device library, and a format operation mode corresponding to the type of the first storage device to ensure that the first storage device is Successfully formatted.

S109. Format the first storage device according to the formatted standard interface read and the formatting operation mode.

After reading the formatted standard interface and the formatted operation mode, the storage node can format the first storage device according to the formatted standard interface and the formatted operation mode. After the first storage device is formatted, the storage node can access the first storage device to the cloud storage system.

In this solution, before the storage device is connected to the cloud storage system, the storage device may be first formatted in the cloud storage system. If yes, after the index information of the storage device is created in the storage node, The storage device is connected to the cloud storage system; otherwise, the storage device is formatted and then connected to the cloud storage system to ensure that the data stored in the storage device is data in the cloud storage system.

On the basis of the foregoing embodiments provided by the present application, the method of the present application further provides a method for removing a storage device in a corresponding cloud storage system, and is applied to a storage node in the cloud storage system, as shown in FIG. 3 . The process includes the following steps:

S301. Identify a type of the second storage device when detecting that the second storage device goes offline.

In the embodiment of the present application, the storage node can dynamically access the storage device, and therefore, the storage node can also remove the storage device accessed by the storage node. For example, when the storage device is not connected well to the storage node or When the user manually disconnects the storage device from the storage node, the storage node can remove the storage device.

Specifically, the storage node may periodically detect (eg, 3 milliseconds, 5 milliseconds, 10 milliseconds, etc.) whether there is a second storage device offline to remove the second storage device from the cloud storage system. When it is detected that the second storage device is offline, the storage node can identify the type of the second storage device. The types of the foregoing storage devices may include, for example, a disk, a Raid, an iScsi device, an FC device, and the like.

It should be noted that the first storage device and the second storage device in the embodiment of the present application may be the same storage device or different storage devices.

S302. Search for a second target storage device library corresponding to the type of the second storage device according to the type of the second storage device.

In the embodiment of the present application, after the storage node detects that the second storage device is offline and identifies the type of the second storage device, the storage device may search for the type of the second storage device according to the type of the second storage device. The target storage device library is configured to remove the second storage device from the cloud storage system according to the offline standard interface and the offline operation mode in the target storage device library.

Specifically, when the type identifier of each storage device is used as the identifier information of each storage device library, when the storage node searches for the target storage device library corresponding to the type of the second storage device, the storage node may identify the identification information of each storage device library. And determining, by the storage device library whose identification information is the type identifier of the second storage device, a target storage device library corresponding to the type of the second storage device.

S303. Read the saved offline standard interface according to the second target storage device library, and the offline operation mode corresponding to the type of the second storage device.

After the storage node finds the target storage device library corresponding to the type of the second storage device, the saved offline standard interface and the offline line corresponding to the type of the second storage device may be read according to the target storage device library. The operation mode is to remove the second storage device from the cloud storage system according to the offline standard interface and the offline operation mode.

S304. The second storage device is removed from the cloud storage system according to the read offline standard interface and the offline operation mode.

After the offline standard interface and the offline operation mode are read, the storage node can remove the second storage device from the cloud storage system according to the offline standard interface and the offline operation mode.

In the embodiment of the present application, when the storage node detects that the storage device is offline, the saved offline standard interface and the offline operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and obtained according to the obtained The offline standard interface and the offline operation mode remove the storage device from the cloud storage system, and implement dynamic removal of the storage device in the storage node.

Further, as shown in FIG. 4, the method for removing the storage device in the cloud storage system provided by the embodiment of the present application may further include:

S305. Determine whether the second storage device is formatted in the cloud storage system. If yes, stop all operations currently performed on the second storage device, and delete the second saved in the storage node. Storing index information of the device and performing the step of removing the second storage device from the cloud storage system.

The storage device can be used to process the data processing request. Therefore, in the embodiment, when the storage node removes the storage device from the cloud storage system, if the storage device exists unprocessed If the data processing request is removed, directly removing the storage device from the cloud storage system may cause the data processing request to fail, resulting in data loss and the like.

As described above, when the storage device accesses the cloud storage system for the first time, only the storage device formatted in the cloud storage system can access the cloud storage system and process the data processing request.

Therefore, in the embodiment of the present application, before the storage node removes the second storage device from the cloud storage system, the storage node may first determine whether the second storage device is formatted in the cloud storage system. If yes, it indicates that the second storage device has successfully accessed the cloud storage system, and the second storage device may have an unprocessed data processing request. In this case, the storage node may stop all operations on the second storage device, and delete the index information of the second storage device saved in the storage node, and then perform the second storage device from the cloud storage system. The steps to remove.

In this solution, before the storage device is removed from the cloud storage system, it may be first determined whether the storage device is formatted in the cloud storage system, and if so, all operations currently performed on the storage device are stopped, and The step of deleting the index information of the storage device saved in the storage node and then removing the storage device from the cloud storage system ensures data security in the cloud storage system.

On the basis of the foregoing embodiments provided by the present application, the embodiment of the present application further provides a data processing method in a corresponding cloud storage system, which is applied to a storage node in a cloud storage system, as shown in FIG. 5, where the process includes The following steps:

S501, when it is determined that the third storage device has a data processing request to be processed, identifying a type of the third storage device, and searching for a type corresponding to the type of the third storage device according to the type of the third storage device The third target storage device library.

In the cloud storage system, when receiving a data processing request, such as a data read request or a data write request, the management node may allocate one or more storage devices for the data processing request to process the data processing request.

When the management node allocates the storage device for the data processing request, any existing method may be used. For example, the storage device may be allocated for the data processing request according to the load balancing principle, which is not described in this application.

In the embodiment of the present application, since the storage devices in the storage node may be different types of storage devices, when processing data processing requests for different types of storage devices, different data processing methods may be required. If the data processing request to be processed by the storage device is processed by using a data processing manner that does not correspond to the type of the storage device, the data processing request processing may be failed.

Therefore, in the embodiment of the present application, when it is determined that the third storage device has a data processing request to be processed, the storage node may first identify the type of the third storage device, and according to the type of the third storage device, look up and A target storage device library corresponding to the type of the third storage device.

The types of the foregoing storage devices may include, for example, a disk, a Raid, an iScsi device, an FC device, and the like. Specifically, when the type identifier of each storage device is used as the identifier information of each storage device library, when the storage node searches for the target storage device library corresponding to the type of the third storage device, the storage node may identify the identification information of each storage device library. And determining, by the storage device library whose identification information is the type identifier of the third storage device, a target storage device library corresponding to the type of the third storage device.

It should be noted that the first storage device, the second storage device, and the third storage device in the embodiment of the present application may be the same storage device or different storage devices.

S502. Read the saved data processing standard interface according to the third target storage device library, and a data processing operation manner corresponding to the type of the third storage device.

After the storage node finds the target storage device library corresponding to the type of the third storage device, the saved data processing standard interface and the data processing corresponding to the type of the third storage device may be read according to the target storage device library. The operation mode is to process the data processing request to be processed according to the data processing standard interface and the data processing operation mode.

S503. Process the data processing request according to the read data processing standard interface and the data processing operation mode.

After reading the data processing standard interface and the data processing operation mode, the storage node may process the data processing request to be processed according to the data processing standard interface and the data processing operation mode.

Specifically, the above data processing standard interface may include opening an object block, reading the object block content, writing the object block content, and closing the object block. For a different type of storage device, the corresponding data processing operation mode may be: for a device without a file system, the operation for the object block may be mapped to the operation of specifying the location of the device; for the device with the file system, The operation of the object block is mapped to the operation of the specified file in the device.

In the embodiment of the present application, when the storage node detects that the storage device has a data processing request to be processed, the storage data processing standard interface and the data processing operation manner corresponding to the type of the storage device can be obtained according to the type of the storage device. And processing the to-be-processed data processing request according to the obtained data processing standard interface and the data processing operation manner, thereby improving the success rate of the data processing request processing in the cloud storage system.

Corresponding to the above method embodiment, the embodiment of the present application also provides a corresponding device embodiment.

FIG. 6 is a device for dynamically accessing a storage device in a cloud storage system according to an embodiment of the present disclosure, which is applied to a storage node in a cloud storage system, where the device includes:

The first identifying module 610 is configured to identify a type of the first storage device when detecting a new first storage device;

The first searching module 620 is configured to search for the first one according to the type of the first storage device. a first target storage device library corresponding to the type of the storage device;

The first reading module 630 is configured to read the saved online standard interface according to the first target storage device library, and an online operation mode corresponding to the type of the first storage device, where the first target The storage device library stores an online standard interface, and an online operation mode corresponding to the type of each storage device;

The access module 640 is configured to access the first storage device to the cloud storage system according to the online standard interface read by the first reading module and the online operation mode.

In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

Further, as shown in FIG. 7, the apparatus for dynamically accessing a storage device in the cloud storage system provided by this embodiment further includes:

The first determining module 650 is configured to determine, according to the formatted identification information saved in the first storage device, before the accessing module 640 accesses the first storage device to the cloud storage system Whether the first storage device is formatted in the cloud storage system;

a creating module 660, configured to: when the first determining module 650 determines that the result is yes, create index information of the first storage device in the storage node;

The output module 670 is configured to output prompt information for formatting the first storage device when the first determining module 650 determines that the result is negative.

Further, the device further includes:

a second reading module 680, configured to: after the output module 670 outputs the prompt information for formatting the first storage device, when receiving an instruction input by the user to format the first storage device, Reading, in the first target storage device library, a saved formatting standard interface, and a format operation mode corresponding to the type of the first storage device;

a formatting module 690 for formatting the standard interface according to the reading and the formatting operation In a manner, the first storage device is formatted.

In this solution, before the storage device is connected to the cloud storage system, the storage device may be first formatted in the cloud storage system. If yes, after the index information of the storage device is created in the storage node, The storage device is connected to the cloud storage system; otherwise, the storage device is formatted and then connected to the cloud storage system to ensure that the data stored in the storage device is data in the cloud storage system.

Further, as shown in FIG. 8, the device for dynamically accessing the storage device in the cloud storage system provided by the embodiment further includes:

a second identification module 810, configured to identify a type of the second storage device when detecting that the second storage device is offline;

The second searching module 820 is configured to search, according to the type of the second storage device, a second target storage device library corresponding to the type of the second storage device;

The third reading module 830 is configured to read the saved offline standard interface according to the second target storage device library, and an offline operation mode corresponding to the type of the second storage device;

The removing module 840 is configured to remove the second storage device from the cloud storage system according to the offline standard interface read by the third reading module and the offline operation mode.

In the embodiment of the present application, when the storage node detects that the storage device is offline, the saved offline standard interface and the offline operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and obtained according to the obtained The offline standard interface and the offline operation mode remove the storage device from the cloud storage system, and implement dynamic removal of the storage device in the storage node.

Further, as shown in FIG. 9, the apparatus for dynamically accessing a storage device in the cloud storage system provided by this embodiment further includes:

a second determining module 850, configured to determine, before the removing module removes the second storage device from the cloud storage system, whether the second storage device is formatted in the cloud storage system Over

The execution module 860 is configured to: when the second determination module determines that the result is YES, stop all operations currently performed on the second storage device, and delete index information of the second storage device saved in the storage node, And triggering the removal module.

In this solution, before the storage device is removed from the cloud storage system, it may be first determined whether the storage device is formatted in the cloud storage system, and if so, all operations currently performed on the storage device are stopped, and The step of deleting the index information of the storage device saved in the storage node and then removing the storage device from the cloud storage system ensures data security in the cloud storage system.

Further, as shown in FIG. 10, the apparatus for dynamically accessing a storage device in the cloud storage system provided by this embodiment further includes:

The third identification module 1010 is configured to identify a type of the third storage device when determining that the third storage device has a data processing request to be processed, and search for the third device according to the type of the third storage device. a third target storage device library corresponding to the type of the storage device;

The fourth reading module 1020 is configured to read the saved data processing standard interface according to the third target storage device library, and a data processing operation manner corresponding to the type of the third storage device;

The processing module 1030 is configured to process the data processing request according to the data processing standard interface read by the fourth reading module and the data processing operation mode.

In the embodiment of the present application, when the storage node detects that the storage device has a data processing request to be processed, the storage data processing standard interface and the data processing operation manner corresponding to the type of the storage device can be obtained according to the type of the storage device. And processing the to-be-processed data processing request according to the obtained data processing standard interface and the data processing operation manner, thereby improving the success rate of the data processing request processing in the cloud storage system.

Correspondingly, the present application further provides a storage medium, where the storage medium is used to store executable program code for performing dynamics in a cloud storage system described in the present application at runtime Method of accessing a storage device. A cloud storage system as described in the present application The method for dynamically accessing a storage device is applied to a storage node in a cloud storage system, and the method includes:

Identifying a type of the first storage device when detecting that a new first storage device is connected;

Determining, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device;

And downloading the saved online standard interface, and the online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface according to the first target storage device library. And an online operation mode corresponding to the type of each storage device;

The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode.

In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

Correspondingly, the present application further provides an application, where the application is used to execute a method for dynamically accessing a storage device in a cloud storage system according to the present application at runtime. The method for dynamically accessing a storage device in a cloud storage system is applied to a storage node in a cloud storage system, and the method includes:

Identifying a type of the first storage device when detecting that a new first storage device is connected;

Determining, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device;

And downloading the saved online standard interface, and the online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface according to the first target storage device library. And an online operation mode corresponding to the type of each storage device;

The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode.

In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

Correspondingly, the present application further provides a storage node device, including:

a processor, a memory, a communication interface, and a bus;

The processor, the memory, and the communication interface are connected by the bus and complete communication with each other;

The memory stores executable program code;

The processor, by reading the executable program code stored in the memory, to run a program corresponding to the executable program code, for performing a dynamic access storage device in a cloud storage system according to the present application. Methods. The method for dynamically accessing a storage device in a cloud storage system is applied to a storage node in a cloud storage system, and the method includes:

Identifying a type of the first storage device when detecting that a new first storage device is connected;

Determining, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device;

And downloading the saved online standard interface, and the online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface according to the first target storage device library. And an online operation mode corresponding to the type of each storage device;

The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode.

In the embodiment of the present application, when the storage node detects the connection of the new storage device, the saved online standard interface and the online operation mode corresponding to the type of the storage device can be obtained according to the type of the storage device, and according to the obtained The on-line standard interface and the online operation mode connect the storage device to the cloud storage system to implement dynamic access of the storage device in the storage node.

For the device/storage medium/application/storage node device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The various embodiments in the present specification are described in a related manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

One of ordinary skill in the art can understand that all or part of the steps in implementing the above method embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, which is referred to herein. Storage media such as ROM/RAM, disk, CD, etc.

The above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are included in the scope of the present application.

Claims (15)

A method for dynamically accessing a storage device in a cloud storage system is applied to a storage node in a cloud storage system, and the method includes: Identifying a type of the first storage device when detecting that a new first storage device is connected; Determining, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device; And downloading the saved online standard interface, and the online operation mode corresponding to the type of the first storage device, wherein the first target storage device library stores an online standard interface according to the first target storage device library. And an online operation mode corresponding to the type of each storage device; The first storage device is connected to the cloud storage system according to the read online standard interface and the online operation mode. The method according to claim 1, wherein the method further comprises: before the accessing the first storage device to the cloud storage system, the method further comprises: Determining, according to the formatted identification information saved in the first storage device, whether the first storage device is formatted in the cloud storage system; if yes, creating the storage node in the storage node Index information of the first storage device; otherwise, outputting prompt information for formatting the first storage device. The method of claim 2, after the outputting the prompt information for formatting the first storage device, the method further includes: When receiving an instruction input by the user to format the first storage device, reading the saved formatting standard interface from the first target storage device library, and corresponding to the type of the first storage device Formatting operation mode; The first storage device is formatted according to the formatted standard interface read and the formatted operation mode. The method of claim 1 further comprising: Identifying a type of the second storage device when detecting that the second storage device is offline; Searching, according to the type of the second storage device, a second target storage device library corresponding to the type of the second storage device; Reading the saved offline standard interface and the offline operation mode corresponding to the type of the second storage device according to the second target storage device library; And deleting the second storage device from the cloud storage system according to the read offline standard interface and the offline operation mode. The method of claim 4, wherein before the removing the second storage device from the cloud storage system, the method further comprises: Determining whether the second storage device is formatted in the cloud storage system; if yes, stopping all operations currently performed on the second storage device, deleting the second storage device saved in the storage node Indexing information and performing the step of removing the second storage device from the cloud storage system. The method of claim 1 further comprising: When it is determined that the third storage device has a data processing request to be processed, identifying a type of the third storage device, and searching for a third corresponding to the type of the third storage device according to the type of the third storage device Target storage device library; Reading, according to the third target storage device library, a saved data processing standard interface, and a data processing operation mode corresponding to the type of the third storage device; The data processing request is processed according to the read data processing standard interface and the data processing operation mode. An apparatus for dynamically accessing a storage device in a cloud storage system is applied to a storage node in a cloud storage system, and the device includes: a first identifying module, configured to identify a type of the first storage device when detecting that a new first storage device is connected; a first searching module, configured to search, according to the type of the first storage device, a first target storage device library corresponding to the type of the first storage device; a first reading module, configured to read the saved online standard interface according to the first target storage device library, and an online operation mode corresponding to the type of the first storage device, where the first target storage The device library stores an online standard interface, and an online operation mode corresponding to the type of each storage device; The access module is configured to access the first storage device to the cloud storage system according to the online standard interface that is read by the first reading module and the online operation mode. The device according to claim 7, wherein the device further comprises: a first determining module, configured to determine, according to the formatted identification information saved in the first storage device, the first storage device before the accessing the first storage device to the cloud storage system Whether the first storage device is formatted in the cloud storage system; a creating module, configured to: when the first determining module determines that the result is yes, create index information of the first storage device in the storage node; And an output module, configured to output prompt information for formatting the first storage device when the first determining module determines that the result is negative. The device according to claim 8, wherein the device further comprises: a second reading module, configured to, after the output module outputs the prompt information for formatting the first storage device, when receiving an instruction input by the user to format the first storage device, a first target storage device library, reading the saved format standard interface, and a format operation mode corresponding to the type of the first storage device; And a formatting module, configured to format the first storage device according to the formatted standard interface read and the formatted operation mode. The device according to claim 7, wherein the device further comprises: a second identification module, configured to identify a type of the second storage device when detecting that the second storage device is offline; a second search module, configured to search, according to the type of the second storage device, a second target storage device library corresponding to the type of the second storage device; a third reading module, configured to read the saved offline standard interface according to the second target storage device library, and an offline operation mode corresponding to the type of the second storage device; The removing module is configured to remove the second storage device from the cloud storage system according to the offline standard interface read by the third reading module and the offline operation mode. The device according to claim 10, wherein the device further comprises: a second determining module, configured to determine, before the removing module removes the second storage device from the cloud storage system, whether the second storage device is formatted in the cloud storage system ; An execution module, configured to: when the second determination module determines that the result is YES, stop all operations on the second storage device, delete index information of the second storage device saved in the storage node, and Trigger the removal module. The device according to claim 7, wherein the device further comprises: a third identification module, configured to identify a type of the third storage device when determining that the third storage device has a data processing request to be processed, and search for the third storage according to the type of the third storage device a third target storage device library corresponding to the type of the device; a fourth reading module, configured to read the saved data processing standard interface according to the third target storage device library, and a data processing operation manner corresponding to the type of the third storage device; And a processing module, configured to process the data processing request according to the data processing standard interface read by the fourth reading module and the data processing operation mode. A storage medium for storing executable program code for performing a cloud storage system according to any one of claims 1-6 at runtime A method of dynamically accessing a storage device. An application, wherein the application is configured to perform a method of dynamically accessing a storage device in a cloud storage system according to any one of claims 1-6 at runtime. A storage node device includes: a processor, a memory, a communication interface, and a bus; The processor, the memory, and the communication interface are connected by the bus and complete communication with each other; The memory stores executable program code; The processor executes a program corresponding to the executable program code by reading executable program code stored in the memory for performing a cloud storage according to any one of claims 1-6 A method of dynamically accessing a storage device in a system.

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