CN111934904A - A capacity expansion method, controller and system - Google Patents

Abstract

The embodiment of the invention discloses a capacity expansion method, a controller and a system. The method comprises the following steps: when finding a controller to be expanded, acquiring application information of the controller to be expanded; and adding the controller to be expanded into the cluster where the controller is located according to the application information so as to expand the cluster. The embodiment of the invention also correspondingly discloses a controller and a system. By adopting the embodiment of the invention, the cluster can automatically expand the capacity of the controller, the capacity expansion efficiency is improved, the user operation is simple and convenient, and the user experience is improved.

Description

A capacity expansion method, controller and system

This application is a divisional application entitled "A Capacity Expansion Method, Controller and System", the patent application number is 201410752019.1, and the filing date is December 10, 2014.

technical field

The invention relates to the field of storage, and in particular, to a capacity expansion method, a controller and a system.

Background technique

With the acceleration of the informatization process and the continuous expansion of the business scale, the huge amount of information increases the business data, which makes the initial configuration of the storage array likely to fail to meet the existing business needs.

Therefore, in order to increase the storage capacity of the storage array, the storage array needs to be expanded. At present, the capacity expansion of the storage array is mainly carried out in the following ways: 1. Insert new hard disks into the hard disk slots of the existing disk enclosures of the storage array to increase the storage array capacity; 2. There are no free hard disk slots in the storage array. If the capacity of the storage array is increased by adding disk enclosures to the array, or if the free hard disk slots cannot meet the existing business needs , the capacity can be expanded by adding a controller, where the controller can carry multiple disk enclosures.

It can be known from the above that, in order to improve the overall performance of the storage array, the third method can be used to expand the capacity, that is, to expand the capacity by adding a controller. However, at present, this expansion method requires the operator to perform manual expansion. For example, the operator needs to power on the controller and manually configure parameters through the operation page. The storage array adds the controller to the storage array network according to the manually set parameters. , which makes the user's operation complicated, and the user must deeply understand the parameter functions of each configuration to perform the configuration, which brings inconvenience to the user and takes up a lot of the user's time.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a capacity expansion method, a controller and a system, which can automatically expand the capacity of the controller, improve capacity expansion efficiency, simplify user operations, and improve user experience.

A first aspect of the present invention provides a capacity expansion method, comprising:

When the controller to be expanded is found, the application information of the controller to be expanded is obtained;

The controller to be expanded is added to the cluster where the controller is located according to the application information, so as to expand the capacity of the cluster.

With reference to the first aspect, in a first possible implementation manner, when the controller to be expanded is found, before acquiring the application information of the controller to be expanded, the method includes:

When an expansion start command is received, the expansion configuration parameters required for expansion are generated.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, when the controller to be expanded is found, acquiring the application information of the controller to be expanded includes:

send broadcast information;

Receive the application information returned by the controller to be expanded in response to the broadcast information.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, the application information carries attribute information of the controller to be expanded, and the attribute information includes the attribute information of the controller to be expanded. The serial number SN, the MAC address of the controller to be expanded, and the version number of the controller to be expanded.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the adding the controller to be expanded to the cluster of controllers according to the application information includes:

obtain the current configuration information of the cluster;

generating new configuration information according to the attribute information and the current configuration information;

Automatic configuration is performed according to the new configuration information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the generating new configuration information according to the attribute information and the current configuration information further includes:

The new configuration information is generated according to the attribute information, the current configuration information and the capacity expansion configuration information.

With reference to the fourth possible implementation manner of the first aspect or the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner, the new configuration information includes the third possible implementation manner of the controller to be expanded. a configuration information and second configuration information of the cluster;

The performing automatic configuration according to the new configuration information includes:

The first configuration information is broadcast, so that the controller to be expanded is configured according to the first configuration information.

With reference to the fourth possible implementation manner of the first aspect or the fifth possible implementation manner of the first aspect, in a seventh possible implementation manner, the performing terminal configuration according to the new configuration information includes:

The configuration of the cluster is modified according to the second configuration information.

With reference to the sixth possible implementation manner of the first aspect or the seventh possible implementation manner of the first aspect, in the eighth possible implementation manner, the first configuration information includes:

The number of controllers in the cluster after expansion, the ID of the controller to be expanded, the IP address of the controller to be expanded, the gateway of the controller to be expanded, the mask of the controller to be expanded, and the size of the cluster after the expansion. The ID list of the controllers and the IP list of the controllers of the expanded cluster.

With reference to the sixth possible implementation manner of the first aspect or the seventh possible implementation manner of the first aspect, in a ninth possible implementation manner, the second configuration information includes: The number of controllers, the ID list of the controllers of the expanded cluster, and the IP list of the controllers of the expanded cluster.

With reference to the first aspect or the first possible implementation manner of the first aspect to the ninth possible implementation manner of the first aspect, in the tenth possible implementation manner, the After the controller joins the cluster where the controller is located, it also includes:

Determine whether the version number of the controller to be expanded is consistent with the version number of the cluster;

When the version number of the controller to be expanded is inconsistent with the version number of the cluster, the version of the controller to be expanded is updated so that the version of the controller to be expanded is consistent with the version of the cluster.

A second aspect of the present invention provides a controller, the controller comprising:

an obtaining unit, configured to obtain application information of the controller to be expanded when the controller to be expanded is found;

The adding unit is configured to add the controller to be expanded to the cluster where the controller is located according to the application information, so as to expand the capacity of the cluster.

With reference to the second aspect, in a first possible implementation manner, the control expansion module further includes:

The generating unit is configured to generate the expansion configuration parameters required for the expansion when the expansion start instruction is received.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the acquiring unit includes:

A sending subunit for sending broadcast information;

The receiving subunit is configured to receive the application information returned by the controller to be expanded in response to the broadcast information.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the application information carries attribute information of the controller to be expanded, and the attribute information includes the attribute information of the controller to be expanded. The serial number SN, the MAC of the controller to be extended, and the version number of the controller to be extended.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the adding unit includes:

Obtain the subunit for the current configuration information of the cluster;

a first generating subunit, configured to generate new configuration information according to the attribute information and the current configuration information;

A configuration subunit, configured to perform automatic configuration according to the new configuration information.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the first generating subunit is specifically used for:

The new configuration information is generated according to the attribute information, the current configuration information and the capacity expansion configuration information.

With reference to the fourth possible implementation manner of the second aspect or the fifth possible implementation manner of the second aspect, in the sixth possible implementation manner, the new configuration information includes the first possible implementation manner of the controller to be expanded. a configuration information and second configuration information of the controller;

The configuration subunit is specifically used to:

The first configuration information is broadcast, so that the controller to be expanded performs automatic configuration according to the first configuration information.

In combination with the fourth possible implementation of the second aspect or the fifth possible implementation of the second aspect or the sixth possible implementation of the second aspect, in the seventh possible implementation, the configuration Subunits are specifically used to:

The configuration of the cluster is modified according to the second configuration information.

With reference to the sixth possible implementation manner of the second aspect or the seventh possible implementation manner of the second aspect, in the eighth possible implementation manner, the first configuration information includes: the controller of the cluster after the expansion Quantity, the ID of the controller to be expanded, the IP address of the controller to be expanded, the gateway of the controller to be expanded, the mask of the controller to be expanded, the ID list of the controllers of the cluster after the expansion, and all The IP list of the controllers of the cluster after the expansion is described.

With reference to the sixth possible implementation manner of the second aspect or the seventh possible implementation manner of the second aspect, in a ninth possible implementation manner, the second configuration information includes: The number of controllers, the ID list of the controllers of the expanded cluster, and the IP list of the controllers of the expanded cluster.

With reference to the second aspect or the first possible implementation manner of the second aspect to the ninth possible implementation manner of the second aspect, in the tenth possible implementation manner, the controller further includes:

a judging unit for judging whether the version number of the controller to be expanded is consistent with the version number of the cluster;

an update unit, when the judging unit judges that the version number of the controller to be expanded is inconsistent with the version number of the cluster, update the version of the controller to be expanded, so that the version of the controller to be expanded is the same as the version number of the controller to be expanded. The version of the cluster described above is the same.

A third aspect of the present invention provides a capacity expansion system, the system includes the above-mentioned controller and a controller to be expanded connected to the controller, wherein,

The controller to be expanded is configured to receive broadcast information sent by the controller, and in response to the broadcast information, return application information to the controller.

With reference to the third aspect, in a first possible implementation manner, the system further includes a terminal device connected to the controller to be controlled,

The terminal device is used for displaying the control expansion state of the real-time controller, receiving the operation instruction of the user, and sending the operation instruction to the controller, so as to control the control expansion process of the controller.

Implementing the embodiment of the present invention has the following beneficial effects:

In this embodiment of the present invention, when the controller finds the controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to the cluster where the controller is located according to the application information, so as to The cluster is automatically scaled up. This enables the controller to automatically expand the cluster, which improves the expansion efficiency, simplifies user operations, and improves user experience.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying 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 invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a capacity expansion method provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another capacity expansion method provided by an embodiment of the present invention.

3 is a structural diagram of a controller provided by an embodiment of the present invention;

4 is a structural diagram of another controller provided by an embodiment of the present invention;

5 is a structural diagram of a capacity expansion system provided by an embodiment of the present invention;

6 is a structural diagram of another capacity expansion system provided by an embodiment of the present invention;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The executive body of the embodiment of the present invention may be a controller, and the controller includes a dedicated controller for the storage array and a common server installed with related software for the storage array. Specifically, the controller may further include a main controller in the storage array and a controller to be expanded to be added to the storage array.

Referring to FIG. 1 , it is a schematic flowchart of a capacity expansion method provided by an embodiment of the present invention. As shown in FIG. 1, a capacity expansion method described in this embodiment includes the steps:

S100, when the controller to be expanded is found, obtain application information of the controller to be expanded.

In this embodiment of the present invention, the executive controller may be a master controller of a cluster in a storage array, where the cluster may be a controller cluster composed of multiple controllers in the storage array. The storage array described in the present invention may be composed of a controller and a hard disk enclosure, the storage array may include multiple controllers, each controller may include multiple disk enclosures, and each disk enclosure may include multiple hard disks, wherein, in the storage array The master controller can be automatically elected among the controllers in the storage array, and the master controller can be used to control other controllers in the storage array. In this embodiment of the present invention, the controller to be expanded may be a controller that carries at least one hard disk enclosure.

In this embodiment of the present invention, the main controller may send broadcast information to the cluster network at regular intervals, wherein the main controller sends the broadcast information through a UDP (User Datagram Protocol, datagram protocol) broadcast mechanism. Preferably, the main controller can send broadcast information to the controller to be expanded. When there is a controller to be expanded that is connected to the main controller in the cluster network, the controller to be expanded will receive the broadcast information, respond to the broadcast information, and return application information. The application information is used to apply to the master controller to join the cluster. Specifically, the application information includes: attribute information of the controller to be expanded, and the attribute information includes the SN (Serial Number, serial number) of the controller to be expanded, and the MAC address (Media Access Control, serial number) of the controller to be expanded. Media Access Control) and the version number of the controller to be expanded.

Preferably, in this embodiment of the present invention, when the operator wants to add the controller to be expanded to the cluster to expand the capacity of the controller, the operator can first connect the controller to be expanded to the cluster network and power on it. For example: when the cluster network has 5 interfaces to connect the controller, and 4 interfaces have been connected to the controller, the operator can connect the network of the controller to be expanded to the remaining interface of the cluster network, so as to connect the The expansion controller is connected to the cluster network composed of the controllers in the storage array.

S101, according to the application information, the controller to be expanded is added to the cluster where the controller is located, so as to expand the capacity of the cluster.

In this embodiment of the present invention, when the main controller receives the application information sent by the controller to be expanded, the main controller may acquire the current configuration information of the cluster. The current configuration information may include the number of controllers in the cluster, the ID list of the controllers in the cluster (Identity, identity code), the IP list of the controllers in the cluster (Internet Protocol, the protocol for interconnection between networks), etc. related configuration information.

In this embodiment of the present invention, after the main controller acquires the current configuration information, the main controller may generate new configuration information according to the attribute information carried in the application information sent by the controller to be expanded and the current configuration information. The new configuration information may include first configuration information of the controller to be expanded and second configuration information of the cluster. The first configuration information may be used to configure the controller to be expanded, and the first configuration information may be configuration information that needs to be changed by the controller to be expanded in order to join the cluster. The first configuration information may include second configuration information, and the first configuration information may be the number of controllers in the cluster after capacity expansion, the ID of the controller to be expanded, the IP address of the controller to be expanded, and the gateway of the controller to be expanded. information, the mask of the controller to be expanded, the ID list of the controllers of the cluster after the expansion, and the IP list of the controllers of the cluster after the expansion. The second configuration information may be used to configure each controller of the current cluster, where each controller includes a master controller and other controllers, and the second configuration information may be, in order to add a controller to be expanded to the cluster, the master controller of the current cluster and other controllers that need to be changed. The second configuration information may include the number of controllers of the expanded cluster, the ID list of the controllers of the expanded cluster, and the IP list of the controllers of the expanded cluster.

Further, after the main controller generates the first configuration information and the second configuration information, the main controller can broadcast the first configuration information in the cluster network, so that the to-be-expanded controller accessing the cluster network obtains the first configuration information. , and perform configuration according to the first configuration information to meet the configuration requirements of the controller to be expanded in the cluster. The first configuration information may include second configuration information, and the configuration of the controller to be expanded according to the first configuration information may be: the controller to be expanded may perform IP configuration according to the IP address included in the first configuration information, and the controller to be expanded may perform IP configuration according to the IP address included in the first configuration information The gateway configuration may be performed according to the gateway information included in the first configuration information, the controller to be expanded may perform mask configuration according to the mask included in the first configuration information, and the controller to be expanded may be configured according to the to-be-expanded controller included in the first configuration information. The controller ID is used for ID configuration, and the controller to be expanded may configure the number of controllers according to the number of controllers in the cluster after capacity expansion included in the first configuration information. Further, the main controller may modify the configuration of each controller in the cluster according to the second configuration information, so as to meet the configuration requirements required for adding the to-be-expanded controller to the cluster. Wherein, the main controller modifying the configuration of each controller in the cluster according to the second configuration information may be: the main controller may modify the configuration of each controller in the cluster according to the number of controllers in the expanded cluster included in the second configuration information The number of controllers in the cluster, the master controller can modify the ID list of the controllers of the cluster configured by each controller in the cluster according to the ID list of the controllers of the cluster after the expansion included in the second configuration information. The IP list of the controllers of the expanded cluster included in the second configuration information modifies the IP list of the controllers of the cluster configured by each controller in the cluster.

In this embodiment of the present invention, after the main controller modifies the configurations of each controller in the cluster and the controller to be expanded, the main controller can further operate the controller to be expanded, so that the controller to be expanded joins the cluster, thereby The cluster has been expanded. Wherein, it is in the prior art that the main controller performs further operations on the to-be-expanded controller, and details are not described here.

In the embodiment of the present invention, after the main controller adds the controller to be expanded to the cluster, the main controller can store service data on the storage unit of the controller to be expanded as required, that is, online control expansion is realized, and because the operating user It does not participate in the expansion process, which ensures that there will be no incorrect parameter configuration operations during the expansion process, improves the security of online expansion, and ensures the normal and stable operation of the business system.

In the embodiment of the present invention, we can understand that the operating user can connect the interface of the controller to be expanded with the network interface of the cluster, and the main controller can automatically identify the controller to be expanded, and automatically configure the network interface of the cluster. The configuration parameters of each controller and the controller to be expanded are obtained, so that the controller to be expanded is added to the cluster according to the obtained configuration parameters, and after the expansion of the controller is completed, the controller to be expanded immediately becomes part of the cluster and can share the cluster's Service processing enables the cluster to "plug and play" for the controller to be expanded during the entire expansion process, which improves the expansion efficiency, simplifies user operations, and improves user experience.

In the embodiment of the present invention, after the main controller modifies the configuration of each controller in the cluster and the controller to be expanded, the main controller can add the controller to be expanded to the cluster according to the configured configuration parameters, so as to perform the cluster configuration. Controller expansion.

In this embodiment of the present invention, when the controller finds the controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to the cluster where the controller is located according to the application information, so as to The cluster is automatically scaled up. This enables the controller to automatically expand the cluster, which improves the expansion efficiency, simplifies user operations, and improves user experience.

Referring to FIG. 2 , it is a schematic flowchart of another capacity expansion method provided by an embodiment of the present invention. As shown in Figure 2, a capacity expansion method described in this embodiment includes the steps:

S200, when receiving a capacity expansion start instruction, generate capacity expansion configuration parameters required for capacity expansion.

In the embodiment of the present invention, when the operating user needs to expand the capacity of the cluster of the controller, the operating user can input a capacity expansion start instruction through a terminal device for managing the cluster. The terminal device may have built-in management software, and the operating user may input a capacity expansion start instruction through an input device of the terminal device. The input device may include a touch screen, keys, and the like.

In the embodiment of the present invention, when the main controller receives an expansion start command, the main controller can perform a pre-control expansion check to check whether the current state of the storage array can implement controller expansion. For example, determine whether the storage array is running normally, and whether the controllers in the controller cluster in the storage array have reached the upper limit, etc. After judging that the storage array can implement expansion control, the main controller can prepare expansion configuration parameters required for expansion control. For example, the ID and IP address allocated for the controller to be expanded can be prepared.

S201, when a controller to be expanded is found, obtain application information of the controller to be expanded.

In the embodiment of the present invention, referring to the structure diagram of a controller shown in FIG. 3 , each controller in the storage array may have a built-in expansion control module (EXP, Expansion), and the expansion control module may be used to realize the automatic configuration of the cluster. The configuration parameters of the controller and the controller to be expanded, so as to realize the function of automatic expansion of the controller for the cluster. Usually, the expansion control module of each controller is in a closed state. When the operating user implements expansion, the expansion control module of the main controller can be activated to automatically configure the configuration parameters of the cluster and the controller to be expanded, and the expansion of other controllers. The control module will remain off. Among them, the expansion control module can be used to discover the controller to be expanded through the UDP broadcast mechanism. At the same time, assign an IP address to the controller to be expanded; the expansion control module can also be used to generate new configuration parameters of the cluster during expansion; the expansion control module can also be used to deliver the new configuration parameters to the controller to be expanded and the cluster Each controller, and detect whether the controller to be expanded has been added to the cluster; the expansion control module can also be used to check whether the current state of the storage array can implement controller expansion before expansion, and to check whether the current state of the storage array is normal after expansion. The expansion control module can also be used to realize the interface communication function of sending configuration parameters to the controller to be expanded and each controller in the cluster; the expansion control module can also be used to broadcast information through the UDP broadcast mechanism; the expansion control module can also be used to control the main Workflow of the controller, and provide an interface for external modules or terminals to query the status of the expansion control process or the expansion control results.

In the embodiment of the present invention, referring to FIG. 3 , the controller may also have a built-in SYS (System Control, system control) module connected to the expansion control module. In order to distinguish it from the SYS module of the controller to be expanded described below, in this In the embodiment, the SYS module is represented by the first SYS module. The first SYS module is used for cluster management, and the expansion control module can implement functions such as expansion control checking, configuration generation, and configuration execution through the first SYS module. It may include: the expansion control module invokes the first SYS module interface to perform pre-expansion inspection and post-expansion verification; the expansion control module may invoke the first SYS module interface to generate first configuration information and second configuration information required for expansion control; The control module can call the first SYS module interface to modify the configuration of the cluster.

In the embodiment of the present invention, the main controller may discover the controller to be expanded through the expansion control module. The expansion control module sends broadcast information through the UDP broadcast unit, wherein the broadcast information is used to discover the controller to be expanded. When the controller to be expanded returns the application information according to the broadcast information, the control expansion module can receive the application information returned by the controller to be expanded. The application information is used to apply to the master controller to join the cluster. Specifically, the application information includes: attribute information of the controller to be expanded, where the attribute information includes the SN of the controller to be expanded, the MAC address of the controller to be expanded, and the version number of the controller to be expanded.

In the embodiment of the present invention, in order to facilitate the operation of the user management controller, as shown in FIG. 3 , the main controller may further include a management monitoring module respectively connected to the expansion control module and the first SYS module, wherein the management monitoring module can be used for Monitor or control the operation of the main controller. The operating user can interact with the main controller through the input device of the terminal device connected to the management monitoring module, so that the operating user can send operating instructions to the management monitoring module through the terminal device. Among them, the operating user can control the expansion control module through the management monitoring module. For example, the expansion control module is usually in a closed state. When the operating user needs to implement expansion, the operating user can send the expansion start command to the management monitoring module through the terminal device, so that the management monitoring module obtains the command to control the expansion control module to start, so as to prepare for the cluster. Automatic expansion, wherein, the expansion start command can be used to start the expansion control module. When the operating user enables the "expansion control mode" through the terminal device, the management monitoring module obtains the expansion start command to start the expansion control module, and at the same time monitors the operation process of the expansion control module, wherein the management monitoring module starts the expansion control module, which may be the management monitoring module. The module sends an expansion start instruction to the expansion control module, so that the expansion control module starts in response to the instruction. When the expansion control module receives an expansion start command, the expansion control module can perform a pre-expansion check to check whether the current state of the storage array can implement controller expansion. For example, determine whether the storage array is running normally, and whether the controllers in the controller cluster in the storage array have reached the upper limit, etc. Wherein, the pre-control expansion check performed by the control expansion module may be that the control expansion module invokes the interface of the first SYS module of the controller to implement the pre-control expansion check. After judging that the storage array can implement expansion control, the expansion control module can prepare expansion configuration parameters required for expansion control. For example, you can prepare the ID and IP address allocated for the controller to be expanded. After the expansion control check of the expansion control module is completed, the expansion control module can discover the controller to be expanded. Where the expansion control module discovers the to-be-expanded controller, reference may be made to the above specific implementation manner.

S202, adding the controller to be expanded to the cluster where the controller is located according to the application information, so as to expand the capacity of the cluster.

In this embodiment of the present invention, when the control expansion module receives the application information sent by the controller to be expanded, the control expansion module can acquire current configuration information. The current configuration information may include the number of controllers in the cluster, the ID list of the controllers in the cluster, the IP list of the controllers in the cluster, and other related configuration information of the controllers in the cluster.

In the embodiment of the present invention, after the expansion control module obtains the current configuration information, the expansion control module can generate the controller to be controlled according to the attribute information carried in the application information sent by the controller to be expanded, the current configuration information and the expansion configuration parameters The first configuration information and the second configuration information of the cluster, wherein the expansion control module can call the first SYS module of the controller to generate the first configuration parameter and the second configuration parameter required for the expansion control. The first configuration information may be used to configure the controller to be expanded, and the first configuration information may be configuration information that needs to be changed by the controller to be expanded in order to join the cluster. The first configuration information may include second configuration information, and the first configuration information may be the number of controllers in the cluster after capacity expansion, the ID of the controller to be expanded, the IP address of the controller to be expanded, and the gateway of the controller to be expanded. information, the mask of the controller to be expanded, the ID list of the controllers of the cluster after the expansion, and the IP list of the controllers of the cluster after the expansion. The second configuration information may be used to configure each controller of the current cluster, where each controller may include a master controller and other controllers. The second configuration information may be configuration information that needs to be changed by the master controller and other controllers of the current cluster in order to add a controller to be expanded to the cluster. The second configuration information may include the number of controllers of the expanded cluster, the ID list of the controllers of the expanded cluster, and the IP list of the controllers of the expanded cluster.

After the expansion control module generates the first configuration information and the second configuration information, the expansion control module can modify the configurations of the controller to be expanded and each controller of the cluster according to the first configuration information and the second configuration information. The expansion control module can broadcast the first configuration information in the cluster, so that the controller to be expanded that accesses the cluster is configured according to the first configuration information to meet the configuration requirements of the controller to be expanded in the cluster. Further, the expansion control module can modify the configuration of each controller in the cluster by calling the first SYS module to modify the configuration of each controller in the cluster to meet the configuration requirements for adding the controller to be expanded in the cluster.

In the embodiment of the present invention, after the control expansion module modifies the configurations of the controller to be expanded and each controller of the cluster, the control expansion module can notify the first SYS module to add the controller to be expanded to the cluster. The first SYS module communicates with the to-be-expanded controller in a heartbeat manner, and adds the to-be-expanded controller to the cluster.

In the embodiment of the present invention, while the control expansion module performs the above implementation manner, the control expansion module can also monitor the state of the controller and the state of the controller to be expanded at the same time, until the controller to be expanded joins the cluster. After the controller to be expanded joins the cluster, the master controller can obtain the end of the expansion and close the expansion module.

In the embodiment of the present invention, the operating user can control the start and pause of the expansion control module through the management monitoring module. And in the process of expanding the control module, the operating user can query the expansion process through the management monitoring module, such as: the current operating status of the expansion control, the success or failure of each step of the expansion process, the main controller is in the expansion process. Which process to control, etc. Further, the management monitoring module can also automatically display the status information in the control expansion process through the terminal device, so that the operating user can grasp the control expansion process.

In the embodiment of the present invention, the controller may implement the method of adding the controller to be expanded to the cluster of the main controller according to the application information through the interaction of the built-in expansion control module and other modules.

In this embodiment of the present invention, referring to FIG. 3 , the main controller may further include a maintenance module connected to the first SYS module. The maintenance module is used to update the version of the controller to be expanded. In the embodiment of the present invention, when the cluster is expanding the control, the first SYS module of the main controller can detect and determine whether the version number of the controller to be expanded is consistent with the version number of the cluster. When the version number of the controller is inconsistent with the version number of the cluster, the maintenance module updates the version of the controller to be expanded so that the version of the controller to be expanded is consistent with the version of the cluster.

In the embodiment of the present invention, when a controller expansion module of a controller finds a controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to a cluster of controllers according to the application information , to expand the cluster. This enables the controller to automatically expand the cluster through the expansion control module, which improves the expansion efficiency, simplifies user operations, and improves user experience.

In order to facilitate better implementation of the above solutions in the embodiments of the present invention, related devices for implementing the above solutions are also provided below.

Please refer to FIG. 4 , which is a structural diagram of another controller according to an embodiment of the present invention. Wherein, as shown in Figure 4, the controller includes:

an obtaining unit 10, configured to obtain the application information of the controller to be expanded when the controller to be expanded is found;

The adding unit 20 connected to the obtaining unit 10 is configured to add the controller to be expanded to the cluster where the controller is located according to the application information, so as to expand the capacity of the cluster.

Wherein, the controller further includes:

The generating unit 30 connected to the adding unit 20 is configured to generate the capacity expansion configuration parameters required for the capacity expansion when receiving the capacity expansion start instruction.

Wherein, the acquisition unit 10 includes:

Sending subunit 1 for sending broadcast information;

The receiving subunit 2 is configured to receive the application information returned by the controller to be expanded in response to the broadcast information.

The application information carries attribute information of the controller to be expanded, and the attribute information includes the serial number SN of the controller to be expanded, the MAC of the controller to be expanded, and the version of the controller to be expanded No.

Wherein, the adding unit 20 includes:

Obtain subunit 3 for the current configuration information of the cluster;

generating subunit 4, for generating new configuration information according to the attribute information and the current configuration information;

The configuration subunit 5 is configured to perform automatic configuration according to the new configuration information.

Wherein, the generating subunit 4 is specifically used for:

The new configuration information is generated according to the attribute information, the current configuration information and the capacity expansion configuration information.

Wherein, the new configuration information includes the first configuration information of the controller to be expanded and the second configuration information of the controller;

The configuration sub-unit 5 is specifically used for:

The first configuration information is broadcast, so that the controller to be expanded performs automatic configuration according to the first configuration information.

Wherein, the configuration subunit 5 is specifically used for:

The configuration of the cluster is modified according to the second configuration information.

The first configuration information includes: the number of controllers in the cluster after capacity expansion, the ID of the controller to be expanded, the IP address of the controller to be expanded, the gateway of the controller to be expanded, and the controller to be expanded mask, the ID list of the controllers of the cluster after the expansion, and the IP list of the controllers of the cluster after the expansion.

The second configuration information includes: the number of controllers in the expanded cluster, an ID list of controllers in the expanded cluster, and an IP list of controllers in the expanded cluster.

Wherein, the adding unit 20 also includes:

Judging subunit 6, for judging whether the version number of the controller to be expanded is consistent with the version number of the cluster;

Update subunit 7, when the judgment unit judges that the version number of the controller to be expanded is inconsistent with the version number of the cluster, it updates the version of the controller to be expanded, so that the version of the controller to be expanded is updated Consistent with the version of the cluster.

It can be understood that the functions of each functional module of the apparatus in this embodiment may be specifically implemented according to the methods in the foregoing method embodiments, and the specific implementation process may refer to the relevant descriptions of the foregoing method embodiments, which will not be repeated here.

In this embodiment of the present invention, when the controller finds the controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to the cluster where the controller is located according to the application information, so as to The cluster is automatically scaled up. This enables the controller to automatically expand the cluster, which improves the expansion efficiency, simplifies user operations, and improves user experience.

Referring to FIG. 5 , it is a structural diagram of a capacity expansion system provided by an embodiment of the present invention. As shown in FIG. 5 , a capacity expansion system described in this embodiment may include the controller 1000 described in the above embodiment and the controller 2000 to be expanded.

The to-be-expanded controller 2000 is configured to receive broadcast information sent by the controller, and in response to the broadcast information, return application information to the controller.

In the embodiment of the present invention, after the controller to be expanded is powered on and connected to the cluster, the controller to be expanded can detect whether there is broadcast information sent by the main controller. When the broadcast information is detected, the controller to be expanded returns the application information to the main controller. The controller to be expanded returns application information through the UDP mechanism, and the application information carries attribute information of the controller to be expanded. The attribute information includes the serial number SN of the controller to be expanded, the MAC of the controller to be expanded, and the version of the controller to be expanded. No. The attribute information can be preset by the operating user at the factory stage.

In the embodiment of the present invention, the controller to be expanded may have a built-in control expansion agent module (EXP-Agent), wherein the control expansion agent module may be set to run automatically after being powered on at the factory stage. When the expansion control agent module starts to run, the expansion control agent module automatically discovers the broadcast information sent by the main controller, so that the controller to be expanded automatically joins the cluster. After the expansion of the cluster control is completed, the second SYS module built in the controller to be expanded can be shut down and no longer run.

In the embodiment of the present invention, the second SYS module may be the SYS module of the controller to be expanded, and the second SYS module is used to communicate with the first SYS module of the controller by means of heartbeat after the expansion of the controller , join the cluster.

In this embodiment of the present invention, the controller to be expanded may further include an operation and maintenance module. The operation and maintenance module is used to change the system version of the controller to be expanded. In the embodiment of the present invention, the second SYS module can determine whether the system version run by the controller to be expanded is consistent with the system version run by each controller in the cluster, and if not, the second SYS module triggers the operation and maintenance module and the main controller The system version of the controller to be expanded is consistent with the system version of each controller in the cluster.

In the embodiment of the present invention, when the controller finds the controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to the cluster of the controllers according to the application information, so as to update the cluster Expand. This enables the controller to automatically expand the capacity of the controller, improves the capacity expansion efficiency, simplifies user operations, and improves user experience.

Referring to FIG. 6 , it is a structural diagram of another capacity expansion system provided by an embodiment of the present invention. As shown in FIG. 6 , a capacity expansion system described in this embodiment may include the controller 1000 described in the above embodiment, the controller 2000 to be expanded described in the above embodiment, and a terminal device 3000 connected to the controller.

The terminal device 3000 is used to display the control expansion state of the controller, receive an operation instruction of the user, and send the operation instruction to the controller, so as to control the control expansion process of the controller.

In the embodiment of the present invention, in order to facilitate the operation user to manage the cluster, the operation user can interact with the main controller of the cluster through the terminal device, so that the operation user can monitor the running state of the main controller through the terminal device, or control the main controller through the terminal device. operation of the controller. Wherein, the terminal device 3000 can be connected with the management monitoring module of the main controller, the management monitoring module can obtain the running status of the main controller and display it through the terminal device 3000, and the management monitoring module can obtain the operation instruction of the operation control through the terminal device 3000, and The operation instruction is issued to the corresponding function module for execution. The terminal device 300 may be a terminal device such as a mobile phone, a computer, and a tablet computer.

In this embodiment of the present invention, when the controller finds the controller to be expanded, it acquires application information of the controller to be expanded, and adds the controller to be expanded to the cluster where the controller is located according to the application information, so as to The cluster is automatically scaled up. This enables the controller to automatically expand the cluster, which improves the expansion efficiency, simplifies user operations, and improves user experience.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. During execution, the processes of the embodiments of the above-mentioned methods may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (13)

1. A capacity expansion method is characterized by comprising the following steps:

acquiring attribute information of the controller to be expanded;

acquiring current configuration information of the cluster, generating new configuration information according to the attribute information and the current configuration information, and configuring the controller to be expanded and the cluster according to the new configuration information so as to enable the controller to be expanded to join the cluster.

2. The method as claimed in claim 1, wherein when the controller to be extended is found, before obtaining the attribute information of the controller to be extended, it comprises:

when receiving the expansion starting instruction, generating the expansion configuration parameters required by expansion.

3. The method of claim 1, wherein the attribute information comprises a serial number SN of the controller to be extended, a medium access control MAC address of the controller to be extended, and a version number of the controller to be extended.

4. The method of claim 3, wherein said generating new configuration information based on said attribute information and said current configuration information further comprises:

and generating the new configuration information according to the attribute information, the current configuration information and the capacity expansion configuration information.

5. The method of claim 1, wherein the new configuration information comprises:

the number of the controllers of the cluster after capacity expansion, the ID of the controller to be expanded, the protocol IP address interconnected between the networks of the controller to be expanded, the gateway of the controller to be expanded, the mask of the controller to be expanded, the ID list of the controller of the cluster after capacity expansion or the IP list of the controller of the cluster after capacity expansion.

6. The method of any one of claims 1-5, further comprising:

judging whether the version number of the controller to be expanded is consistent with the version number of the cluster;

and when the version number of the controller to be expanded is not consistent with the version number of the cluster, updating the version of the controller to be expanded so as to enable the version of the controller to be expanded to be consistent with the version of the cluster.

7. A controller, characterized in that the controller comprises:

the acquisition unit is used for acquiring the attribute information of the controller to be expanded;

and the joining unit is used for acquiring the current configuration information of the cluster, generating new configuration information according to the attribute information and the current configuration information, and configuring the controller to be expanded and the cluster according to the new configuration information so as to join the controller to be expanded into the cluster.

8. The controller of claim 7, wherein the controller further comprises:

and the generating unit is used for generating capacity expansion configuration parameters required by capacity expansion when receiving the capacity expansion starting instruction.

9. The controller of claim 7, wherein the attribute information comprises a serial number SN of the controller to be extended, a MAC of the controller to be extended, and a version number of the controller to be extended.

10. The controller of claim 7, wherein the new configuration information comprises: the number of the controllers of the cluster after capacity expansion, the ID of the controller to be expanded, the protocol IP address interconnected between the networks of the controller to be expanded, the gateway of the controller to be expanded, the mask of the controller to be expanded, the ID list of the controller of the cluster after capacity expansion or the IP list of the controller of the cluster after capacity expansion.

11. The controller according to any one of claims 7 to 10, wherein the adding unit comprises:

the judging subunit is used for judging whether the version number of the controller to be expanded is consistent with the version number of the cluster;

and the updating subunit is used for updating the version of the controller to be expanded when the judging unit judges that the version number of the controller to be expanded is inconsistent with the version number of the cluster, so that the version of the controller to be expanded is consistent with the version of the cluster.

12. An expansion system comprising the controller according to any one of claims 7 to 11 and a controller to be expanded connected to the controller, wherein,

and the controller to be expanded is used for receiving the broadcast information sent by the controller, responding to the broadcast information and returning application information to the controller.

13. The system of claim 12, further comprising a terminal device connected to the controller,

the terminal device is used for displaying the expansion control state of the real-time controller, receiving an operation instruction of a user, and sending the operation instruction to the controller so as to control the expansion control process of the controller.

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