WO2023124127A1

WO2023124127A1 - Communication connection method, apparatus and device for host and storage system, and medium

Info

Publication number: WO2023124127A1
Application number: PCT/CN2022/113562
Authority: WO
Inventors: 李冬冬
Original assignee: 浪潮(北京)电子信息产业有限公司
Priority date: 2021-12-31
Filing date: 2022-08-19
Publication date: 2023-07-06
Also published as: CN114356810B; CN114356810A

Abstract

Disclosed in the present application are a communication connection method, apparatus and device for a host and a storage system, and a medium. The method comprises: when configuration information of an NVMeoFC storage system changes, acquiring change configuration information regarding the change of the configuration information in the NVMeoFC storage system; according to the change configuration information, determining a target host with changed configuration information in the NVMeoFC storage system; and if the target host has been registered in an out-of-band management server, sending target configuration information, which corresponds to the target host and is in the change configuration information, to the target host, so that the target host establishes a communication connection with the NVMeoFC storage system.

Description

A communication connection method, device, equipment and medium for a host and a storage system

Cross References to Related Applications

This application claims the priority of the Chinese patent application submitted to the China Patent Office on December 31, 2021 with the application number 202111678634.9. The entire contents are incorporated by reference in this application.

technical field

The present application relates to the technical field of servers, and in particular to a communication connection method, device, equipment and medium between a host and a storage system.

Background technique

NVMe (Non Volatile Memory express, non-volatile memory host controller interface specification) has an imperfect timeout mechanism, that is, the host is establishing communication with the NVMeoFC (NVMe over Fiber Channel, NVMe transmission through the fiber network) storage system When connecting, there will be a problem of probabilistic connection failure. Among them, the principle of the host automatically connecting to the NVMeoFC storage system is: when the host establishes a port connection with the NVMeoFC storage system, it will judge whether the port on the NVMeoFC storage system has the discovery capability. If the port of the NVMeoFC storage system has the discovery capability, it will trigger udev(device manager). In this case, the host will send relevant link information to the NVMeoFC storage system, and the pre-configured rule file will trigger the nvme command to automatically complete the connection with the NVMeoFC storage system.

From the above process, it can be seen that the process of the host automatically connecting to the NVMeoFC storage system depends on the problem that the port triggers udev for communication connection. The inventor realized that if the NVMeoFC storage system fails to provide NVMe connection services due to abnormal reasons when the NVMeoFC storage system establishes a port connection, even if the NVMeoFC storage system returns to normal, the host cannot establish a communication connection with the NVMeoFC storage system. Obviously, this cannot guarantee the reliability of the host when establishing a communication connection with the NVMeoFC storage system. Currently, there is no effective solution to this technical problem.

Contents of the invention

This application provides the following technical solutions:

According to the first aspect, the present application provides a communication connection method between a host and a storage system, which is applied to an out-of-band management server, including:

In response to a change in the configuration information of the NVMeoFC storage system, obtain the change configuration information of the change in the configuration information in the above NVMeoFC storage system;

Determine the target host where the configuration information in the above NVMeoFC storage system changes according to the above changed configuration information; and

In response to the above-mentioned target host being registered in the above-mentioned out-of-band management server, sending the target configuration information corresponding to the above-mentioned target host in the above-mentioned change configuration information to the above-mentioned target host, so that the above-mentioned target host establishes communication with the above-mentioned NVMeoFC storage system connect.

In one of the embodiments, in response to changes in the configuration information of the NVMeoFC storage system, the process of obtaining configuration information changes in the NVMeoFC storage system includes:

Real-time monitoring of the configuration information of the NVMeoFC storage system by using the state change program module pre-added in the NVMeoFC storage system;

In response to changes in the configuration information of the NVMeoFC storage system, the change configuration information of the changes in the configuration information in the NVMeoFC storage system is acquired through the state change program module.

In one embodiment, the method also includes:

In response to the fact that the target host is not registered in the out-of-band management server, it is determined that the target host is abnormal, and an early warning message is prompted.

In one embodiment, the method also includes:

Add a status subscription program module on the target host in advance, and use the status subscription program module to register the NQN of the target host to the out-of-band management server.

In one of the embodiments, the process of sending the target configuration information corresponding to the target host in the changed configuration information to the target host includes:

Send the target configuration information corresponding to the target host in the changed configuration information to the status subscription program module, and use the status subscription program module to send the target configuration information to the target host.

In one embodiment, the method also includes:

The status subscription program module is used to periodically detect the communication connection status between the target host and the NVMeoFC storage system.

In one of the embodiments, the status subscription module stores communication connection information between the target host and the NVMeoFC storage system.

In one of the embodiments, the state subscription program module is used to regularly detect the communication connection state between the target host and the NVMeoFC storage system, including:

Utilize the status subscription program module to detect that the communication connection state between the target host and the NVMeoFC storage system is interrupted, and notify the target host to establish a communication connection with the NVMeoFC storage system again.

In one of the embodiments, the target configuration information corresponding to the target host in the change configuration information is sent to the target host, so that the target host establishes a communication connection with the NVMeoFC storage system, including:

Send the target configuration information corresponding to the target host in the change configuration information to the target host, so that when the target host receives the target configuration information, it can determine whether the target host establishes a communication connection with the NVMeoFC storage system, and respond to the target host and NVMeoFC The storage system has not established a communication connection, but establishes a communication connection with the NVMeoFC storage system through the target configuration information.

In one of the embodiments, the number of target hosts is one or more.

In one embodiment, the changed configuration information of the configuration information in the NVMeoFC storage system includes: the NQN of the host whose configuration information is changed in the NVMeoFC storage system and the target port pairing information of the changed port pairing in the NVMeoFC storage system.

In one of the embodiments, the changed configuration information of the changed configuration information in the NVMeoFC storage system further includes: the NQN of the NVMeoFC storage system.

In one embodiment, the status subscription program module is used to register the NQN of the target host to the out-of-band management server, and then further includes: storing the NQN of the target host.

In one embodiment, the change in the configuration information of the NVMeoFC storage system means that a new host or namespace that allows access is added to the NVMeoFC storage system, or the NVMeoFC storage system cannot provide NVMeoFC services to the accessing host at the current moment.

In one embodiment, the failure of the NVMeoFC storage system to provide the NVMeoFC service to the access host at the current moment means that the pairing situation between ports in the NVMeoFC storage system changes.

In one of the embodiments, a communication connection is established between the target host and the NVMeoFC storage system through an optical fiber.

Correspondingly, the present application also discloses a communication connection device between a host and a storage system according to the second aspect. The communication connection device between a host and a storage system is applied to an out-of-band management server, and the device includes the following modules:

An information acquisition module, configured to acquire change configuration information in which the configuration information in the NVMeoFC storage system changes in response to changes in the configuration information of the NVMeoFC storage system;

The host determination module is configured to determine the target host whose configuration information in the above-mentioned NVMeoFC storage system changes according to the above-mentioned changed configuration information; and

A communication connection module, configured to send target configuration information corresponding to the target host in the changed configuration information to the target host in response to the target host being registered in the out-of-band management server, so that the target host and The aforementioned NVMeoFC storage system establishes a communication connection.

In one of the embodiments, the information acquisition module is specifically used for:

Real-time monitoring of the configuration information of the above-mentioned NVMeoFC storage system by using the state change program module pre-added in the above-mentioned NVMeoFC storage system; and

In response to changes in the configuration information of the NVMeoFC storage system, the changed configuration information of the changed configuration information in the NVMeoFC storage system is acquired through the state change program module.

Correspondingly, this application also discloses a communication connection device between a host and a storage system, including:

memory for storing computer readable instructions;

One or more processors, configured to implement the steps in the communication connection method between a host and a storage system as disclosed in any of the foregoing embodiments when executing the above computer-readable instructions.

Correspondingly, the present application also discloses a non-volatile computer-readable storage medium, in which computer-readable instructions are stored on the above-mentioned non-volatile computer-readable storage medium, and the above-mentioned computer-readable instructions are executed by one or more processors During execution, the steps in a communication connection method between a host and a storage system as disclosed in any of the foregoing embodiments are implemented.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features and advantages of the application will be apparent from the description, drawings, and claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a flowchart of a communication connection method between a host and a storage system provided by one or more embodiments of the present application;

FIG. 2 is a schematic diagram of establishing a communication connection between a target host and an NVMeoFC storage system provided by one or more embodiments of the present application;

FIG. 3 is a structural diagram of a communication connection device between a host and a storage system provided by one or more embodiments of the present application;

FIG. 4 is a structural diagram of a communication connection device between a host and a storage system provided by one or more embodiments of the present application;

Fig. 5 is an internal structural diagram of a communication connection device between a host and a storage system provided by one or more embodiments of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Please refer to FIG. 1. FIG. 1 is a flow chart of a communication connection method between a host and a storage system provided in an embodiment of the present application. The method includes:

Step S11: In response to changes in the configuration information of the NVMeoFC storage system, obtain changed configuration information in which the configuration information in the NVMeoFC storage system has changed;

Step S12: Determine the target host whose configuration information changes in the NVMeoFC storage system according to the changed configuration information;

Step S13: In response to the target host being registered in the out-of-band management server, the target configuration information corresponding to the target host in the changed configuration information is sent to the target host, so that the target host establishes a communication connection with the NVMeoFC storage system.

In this embodiment, a communication connection method between a host and a storage system is provided, through which the reliability of the host when establishing a communication connection with the NVMeoFC storage system can be guaranteed. The communication connection method is specifically described with the out-of-band management server as the execution subject.

Specifically, when a new host or namespace that allows access is added to the NVMeoFC storage system, or the NVMeoFC storage system cannot provide NVMeoFC services to the accessing host at the current moment, the configuration information of the NVMeoFC storage system will change. In this case Next, the out-of-band management server will obtain the changed configuration information of the changed configuration information from the NVMeoFC storage system.

When the out-of-band management server obtains the change configuration information that the configuration information in the NVMeoFC storage system changes, the out-of-band management server will determine the target host where the configuration information in the NVMeoFC storage system changes according to the change configuration information, and will detect whether the target host is Register on the out-of-band management server.

It should be noted that, in the NVMeoFC storage system, there may be one or more hosts whose configuration information undergoes authorized changes. Therefore, the number of target hosts may be one or multiple, which is not specifically limited here.

If the target host has been registered in the out-of-band management server, the out-of-band management server will send the target configuration information corresponding to the target host in the change configuration information to the target host; When the target configuration information corresponding to the target host is configured, it will be determined whether the target host has established a communication connection with the NVMeoFC storage system; if the target host has established a communication connection with the NVMeoFC storage system, the target host does not need to take any action; If the NVMeoFC storage system has not established a communication connection, the target host will establish a communication connection with the NVMeoFC storage system through the target configuration information.

It can be seen that in this embodiment, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server will obtain the changed configuration information of the changed configuration information in the NVMeoFC storage system, and determine the configuration information in the NVMeoFC storage system according to the changed configuration information The changed target host; if the target host has been registered in the out-of-band management server, the target configuration information corresponding to the target host in the changed configuration information is sent to the target host, so that the target host establishes communication with the NVMeoFC storage system connect. Compared with the prior art, since this method utilizes the out-of-band management server to obtain the changed configuration information in which the configuration information in the NVMeoFC storage system changes, and sends the target configuration information corresponding to the target host in the changed configuration information to The target host, so as to establish a communication connection between the target host and the NVMeoFC storage system. There is no need to rely on port trigger udve to establish a communication connection between the host and the NVMeoFC storage system, so that the reliability of the host when establishing a communication connection with the NVMeoFC storage system can be further ensured.

Based on the above embodiments, this embodiment further explains and optimizes the technical solution. As a preferred implementation, the above steps: when the configuration information of the NVMeoFC storage system changes, obtain the configuration information in the NVMeoFC storage system. The process of changing configuration information, including:

In this embodiment, in order to ensure that the out-of-band management server can obtain the changed configuration information of the changed configuration information in the NVMeoFC storage system, a state change program module is added to the NVMeoFC storage system in advance, and the state change program module is used to real-time Monitor configuration information changes in the NVMeoFC storage system. If the configuration information in the NVMeoFC storage system changes, the status change program module will immediately send the changed configuration information of the configuration information in the NVMeoFC storage system to the out-of-band management server.

It is understandable that when the configuration information of the NVMeoFC storage system changes, it may be that a new host that can be authorized to access is added to the NVMeoFC storage system, or a new namespace is added to the NVMeoFC storage system, or it may be The pairing between individual ports in the NVMeoFC storage system has changed. Therefore, in this embodiment, when the state change program module detects that the configuration information of the NVMeoFC storage system changes, the state change program module will store the NQN (NVMe Qualified Name, NVMe Qualified Name) and NVMeoFC storage system of the NVMeoFC storage system. When the configuration information in the system changes, the NQN of the host and the target port pairing information of the changed port pairing in the NVMeoFC storage system are all packaged and sent to the out-of-band management server.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, the above-mentioned communication connection method also includes:

In practical applications, if the target host is not registered in the out-of-band management server, it means that the target host is abnormal. In this case, the out-of-band management server will prompt an early warning message. It is conceivable that through such a setting method, the maintenance personnel can be reminded in time to detect and repair the target host, thereby reducing or avoiding the economic loss caused by the user when encountering an abnormal situation.

In this embodiment, in order to ensure that the target host can establish a reliable communication connection with the NVMeoFC storage system, a status subscription program module is added to the target host in advance, and the status subscription program module is used to monitor the communication between the target host and the NVMeoFC storage system Connections are managed individually. Specifically, after adding the status subscription program module on the target host, the status subscription program module will first register the NQN (NVMe Qualified Name, nvme qualified name) of the target host to the out-of-band management server, and Information about the target host is stored in it.

As a preferred implementation manner, the above step: the process of sending the target configuration information corresponding to the target host in the changed configuration information to the target host, including:

In order to improve the execution efficiency of the target host, in this embodiment, the status subscription program module is also used to receive the target configuration information sent by the out-of-band management server. When the status subscription program module receives the target configuration information sent by the out-of-band management server, it will send the target configuration information to the target host, so that the target host can establish a communication connection with the NVMeoFC storage system.

As a preferred implementation manner, the above-mentioned communication connection method further includes:

Use the status subscription program module to periodically detect the communication connection status between the target host and the NVMeoFC storage system.

In practical applications, in addition to passively receiving the target configuration information sent by the out-of-band management server, the status subscription module on the target host also stores the communication connection information between the target host and the NVMeoFC storage system, so , the state subscription module can also be used to periodically detect the state of the communication connection between the target host and the NVMeoFC storage system.

That is, if the status subscription program module detects that the communication connection between the target host and the NVMeoFC storage system is interrupted, the status subscription program module will notify the target host to establish a communication connection with the NVMeoFC storage system again. Obviously, through the technical solution provided in this embodiment, the reliable connection between the target host and the NVMeoFC storage system can be further ensured.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of establishing a communication connection between a target host and an NVMeoFC storage system provided by an embodiment of the present application. Among them, the target host and the NVMeoFC storage system need to establish a communication connection through an optical fiber, and the target host and the NVMeoFC storage system are respectively provided with HBA (Host Bus Adapter, host bus adapter) and FC ports (that is, N_Port in Figure 2) .

In practical applications, in order to ensure that the target host can establish a reliable communication connection with the NVMeoFC storage system, it is necessary to add a status subscription program module and a status change program module on the target host and the NVMeoFC storage system respectively. Among them, the status subscription module will register the NQN of the target host to the out-of-band management server, and the status change program module will monitor the configuration information of the NVMeoFC storage system in real time. If the status change program module detects that the configuration information of the NVMeoFC storage system has changed , the state change program module will send the change configuration information that the configuration information in the NVMeoFC storage system changes to the out-of-band management server. Among them, the changed configuration information of the configuration information in the NVMeoFC storage system includes: the NQN of the newly authorized host in the NVMeoFC storage system, the NQN of the NVMeoFC storage system, and the port information of the paired port between the authorized host and the NVMeoFC storage system, etc.

When the out-of-band management server receives the change configuration information sent by the state change program module, if the out-of-band management server determines that the target host whose configuration information has changed in the NVMeoFC storage system has registered with the out-of-band management server, then The out-of-band management server will send the configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host can establish a communication connection with the NVMeoFC storage system.

Please refer to FIG. 3. FIG. 3 is a structural diagram of a communication connection device between a host and a storage system provided in an embodiment of the present application. The device includes:

Information acquisition module 21, for changing in response to the configuration information of NVMeoFC storage system, obtain the change configuration information that configuration information in NVMeoFC storage system changes;

The host determining module 22 is used to determine the target host whose configuration information changes in the NVMeoFC storage system according to the changed configuration information;

The communication connection module 23 is configured to send the target configuration information corresponding to the target host in the change configuration information to the target host in response to the target host being registered in the out-of-band management server, so that the target host establishes communication with the NVMeoFC storage system connect.

In this embodiment, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server will obtain the changed configuration information of the changed configuration information in the NVMeoFC storage system, and determine that the configuration information in the NVMeoFC storage system has changed according to the changed configuration information the target host; if the target host has been registered in the out-of-band management server, the target configuration information corresponding to the target host in the change configuration information is sent to the target host, so that the target host establishes a communication connection with the NVMeoFC storage system. Compared with the prior art, since this method utilizes the out-of-band management server to obtain the changed configuration information in which the configuration information in the NVMeoFC storage system changes, and sends the target configuration information corresponding to the target host in the changed configuration information to The target host, so as to establish a communication connection between the target host and the NVMeoFC storage system. There is no need to rely on port trigger udve to establish a communication connection between the host and the NVMeoFC storage system, so that the reliability of the host when establishing a communication connection with the NVMeoFC storage system can be further ensured.

Based on the above embodiments, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the information acquisition module 21 is specifically used for:

Real-time monitoring of the configuration information of the NVMeoFC storage system by using the state change program module pre-added in the NVMeoFC storage system; and

In response to changes in the configuration information of the NVMeoFC storage system, the change configuration information in which the configuration information in the NVMeoFC storage system has changed is acquired through the state change program module.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the device is also used to: respond to if the target host is not in the out-of-band management server If the registration is performed, it will be determined that the target host is abnormal, and an early warning message will be prompted.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the device is also used to: add a status subscription program module on the target host in advance, and Register the NQN of the target host to the out-of-band management server by using the status subscription program module.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the communication connection module 23 will change the target configuration corresponding to the target host in the configuration information When the information is sent to the target host, it is specifically used for: sending the target configuration information corresponding to the target host in the changed configuration information to the status subscription program module, and using the status subscription program module to send the target configuration information to the target host.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the device is also used to: use the status subscription program module to regularly detect the target host and NVMeoFC storage The status of communication connections between systems.

In one of the embodiments, when the device uses the status subscription program module to regularly detect the communication connection status between the target host and the NVMeoFC storage system, it is specifically used to: use the status subscription program module to respond to the detection of the connection status between the target host and the NVMeoFC storage system If the communication connection status between the hosts is interrupted, the target host is notified to establish a communication connection with the NVMeoFC storage system again.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the technical solution. As a preferred implementation mode, in this embodiment, the communication connection module 23 will change the target configuration corresponding to the target host in the configuration information When the information is sent to the target host so that the target host establishes a communication connection with the NVMeoFC storage system, it is specifically used to: send the target configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host receives the target When configuring information, determine whether the target host establishes a communication connection with the NVMeoFC storage system, and establish a communication connection with the NVMeoFC storage system through the target configuration information in response to the target host not establishing a communication connection with the NVMeoFC storage system.

In one of the embodiments, the number of target hosts is one or more.

In one embodiment, after registering the NQN of the target host with the out-of-band management server by using the status subscription program module, the device is further configured to: store the NQN of the target host.

The device for communication connection between a host and a storage system provided by the embodiment of the present application has the beneficial effect of the method for communication connection between a host and a storage system disclosed above.

Please refer to FIG. 4. FIG. 4 is a structural diagram of a communication connection device between a host and a storage system provided in an embodiment of the present application. The device includes:

memory 31 for storing computer readable instructions;

One or more processors 32 are configured to implement the steps of a communication connection method between a host and a storage system disclosed above when executing computer-readable instructions.

A communication connection device between a host and a storage system provided in an embodiment of the present application has the beneficial effects of the method for communication connection between a host and a storage system disclosed above.

Further, an internal structure diagram of a communication connection device between the host and the storage system may be as shown in FIG. 5 . The communication connection device between the host and the storage system includes a processor, a memory, a network interface and a database connected through a system bus. Wherein, the processor of the communication connection device between the host and the storage system is used to provide calculation and control capabilities. The memory of the communication connection device between the host and the storage system includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs and databases. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the communication connection device between the host and the storage system is used to store the acquired data such as configuration change information, and for the specific stored data, refer to the limitations in the foregoing method embodiments. The network interface of the communication connection device between the host and the storage system is used to communicate with an external terminal through a network connection. When the computer program is executed by a processor, a method for determining a transportation route is realized.

Those skilled in the art can understand that the structure shown in Figure 5 is only a block diagram of a part of the structure related to the solution of this application, and does not constitute a limitation on the communication connection equipment between the host and the storage system to which the solution of this application is applied , the specific communication connection device between the host and the storage system may include more or less components than shown in the figure, or combine some components, or have a different arrangement of components.

Correspondingly, the embodiment of the present application also provides a non-volatile computer-readable storage medium, the non-volatile computer-readable storage medium stores computer-readable instructions, and the computer-readable instructions are processed by one or more When the server executes, it implements the steps of a communication connection method between a host and a storage system as disclosed above.

A non-volatile computer-readable storage medium provided by an embodiment of the present application has the beneficial effect of the communication connection method between a host and a storage system disclosed above.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, because it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related parts, please refer to the description of the method part.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

A communication connection method, device, equipment, and medium for a host and a storage system provided by this application have been introduced above in detail. In this paper, specific examples are used to illustrate the principles and implementation methods of this application. The description of the above embodiments It is only used to help understand the method and core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation and application scope. In summary, this specification The content should not be construed as a limitation of the application.

Claims

A communication connection method between a host and a storage system, characterized in that it is applied to an out-of-band management server, comprising:

In response to a change in the configuration information of the NVMeoFC storage system, acquire configuration change information in which the configuration information in the NVMeoFC storage system changes;

Determine the target host whose configuration information in the NVMeoFC storage system changes according to the changed configuration information; and

In response to the target host being registered in the out-of-band management server, sending target configuration information corresponding to the target host in the change configuration information to the target host, so that the target host and The NVMeoFC storage system establishes a communication connection.
The communication connection method according to claim 1, wherein, in response to changes in the configuration information of the NVMeoFC storage system, the process of obtaining configuration information changes in the NVMeoFC storage system includes:

Real-time monitoring of the configuration information of the NVMeoFC storage system by using the state change program module pre-added in the NVMeoFC storage system; and

In response to changes in the configuration information of the NVMeoFC storage system, the change configuration information in which the configuration information in the NVMeoFC storage system has changed is acquired through the state change program module.
The communication connection method according to claim 1, further comprising:

In response to the fact that the target host is not registered in the out-of-band management server, it is determined that the target host is abnormal, and an early warning message is prompted. 4. The communication connection method according to any one of claims 1 to 3, further comprising:

Adding a status subscription program module on the target host in advance, and using the status subscription program module to register the NQN of the target host to the out-of-band management server.
The communication connection method according to claim 4, wherein the process of sending the target configuration information corresponding to the target host in the changed configuration information to the target host includes:

sending the target configuration information corresponding to the target host in the changed configuration information to the status subscription program module, and using the status subscription program module to send the target configuration information to the target host.
The communication connection method according to claim 5, further comprising:

Utilize the status subscription program module to regularly detect the communication connection status between the target host and the NVMeoFC storage system.
The communication connection method according to claim 5 or 6, wherein the status subscription module stores communication connection information between the target host and the NVMeoFC storage system.
The communication connection method according to claim 7, wherein the state subscription program module is used to regularly detect the communication connection state between the target host and the NVMeoFC storage system, including:

Utilizing the status subscription program module to notify the target host to establish a communication connection with the NVMeoFC storage system again in response to detecting that the communication connection state between the target host and the NVMeoFC storage system is interrupted.
The communication connection method according to claim 1, wherein the target configuration information corresponding to the target host in the changed configuration information is sent to the target host, so that the target host and the NVMeoFC The storage system establishes a communication connection, including:

sending target configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host can determine whether the target host is compatible with the target host when receiving the target configuration information The NVMeoFC storage system establishes a communication connection, and in response to the target host not establishing a communication connection with the NVMeoFC storage system, establishes a communication connection with the NVMeoFC storage system through the target configuration information.
The communication connection method according to claim 1, wherein the number of the target hosts is one or more.
The communication connection method according to claim 1 or 2, wherein the changed configuration information of the changed configuration information in the NVMeoFC storage system includes: the NQN of the host whose configuration information has changed in the NVMeoFC storage system and the The target port pairing information of the changed port pairing in the NVMeoFC storage system.
The communication connection method according to claim 11, wherein the changed configuration information of the changed configuration information in the NVMeoFC storage system further includes: the NQN of the NVMeoFC storage system.
The communication connection method according to claim 4, characterized in that, registering the NQN of the target host with the out-of-band management server by using the status subscription program module, and then further comprising: storing the NQN of the target host.
The communication connection method according to claim 1, wherein the change in the configuration information of the NVMeoFC storage system means that a new host or namespace that allows access is added to the NVMeoFC storage system, or the NVMeoFC storage system The NVMeoFC service cannot be provided to the access host at the current moment.
The communication connection method according to claim 14, wherein the failure of the NVMeoFC storage system to provide NVMeoFC services to the access host at the current moment means that the pairing situation between ports in the NVMeoFC storage system changes.
The communication connection method according to claim 1, wherein a communication connection is established between the target host and the NVMeoFC storage system through an optical fiber.
A communication connection device between a host and a storage system, characterized in that it is applied to an out-of-band management server, including:

An information acquisition module, configured to acquire change configuration information in which the configuration information in the NVMeoFC storage system changes in response to changes in the configuration information of the NVMeoFC storage system;

A host determining module, configured to determine the target host whose configuration information in the NVMeoFC storage system changes according to the changed configuration information; and

a communication connection module, configured to send target configuration information corresponding to the target host in the changed configuration information to the target host in response to the target host being registered in the out-of-band management server, to Make the target host establish a communication connection with the NVMeoFC storage system.
The communication connection device between a host and a storage system according to claim 17, wherein the information acquisition module is specifically used for:

Real-time monitoring of the configuration information of the NVMeoFC storage system by using the state change program module pre-added in the NVMeoFC storage system; and

In response to changes in the configuration information of the NVMeoFC storage system, the change configuration information in which the configuration information in the NVMeoFC storage system has changed is acquired through the state change program module.
A communication connection device between a host and a storage system, characterized in that it includes:

memory for storing computer readable instructions; and

One or more processors, configured to implement the steps of the communication connection method between a host and a storage system according to any one of claims 1 to 16 when executing the computer-readable instructions.
A non-volatile computer-readable storage medium, wherein computer-readable instructions are stored on the non-volatile computer-readable storage medium, and when the computer-readable instructions are executed by one or more processors The steps of implementing a communication connection method between a host and a storage system according to any one of claims 1 to 16.