CN114356810B - Communication connection method, device, equipment and medium for host and storage system - Google Patents
Communication connection method, device, equipment and medium for host and storage system Download PDFInfo
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- CN114356810B CN114356810B CN202111678634.9A CN202111678634A CN114356810B CN 114356810 B CN114356810 B CN 114356810B CN 202111678634 A CN202111678634 A CN 202111678634A CN 114356810 B CN114356810 B CN 114356810B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses a method, a device, equipment and a medium for communication connection between a host and a storage system, wherein the method comprises the following steps: when the configuration information of the NVMeoFC storage system changes, obtaining changed configuration information of the change of the configuration information in the NVMeoFC storage system; determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information; and if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host so as to enable the target host to establish communication connection with the NVMeoFC storage system. Compared with the prior art, the method utilizes the out-of-band management server to establish the communication connection between the target host and the NVMeoFC storage system, so that the reliability of the host when the communication connection is established with the NVMeoFC storage system can be further ensured.
Description
Technical Field
The present invention relates to the field of server technologies, and in particular, to a method, an apparatus, a device, and a medium for connecting a host to a storage system in a communication manner.
Background
NVMe (Non Volatile Memory express, nonvolatile memory host controller interface specification) has a problem that a timeout mechanism is imperfect, that is, a problem that a host has a probabilistic connection failure when establishing a communication connection with an NVMeoFC (NVMe over Fibre Channel, implementing NVMe transmission through an optical fiber network) storage system. The principle of automatically connecting the host with the NVMeoFC storage system is as follows: when the host establishes port connection with the NVMeoFC storage system, it is determined whether the port on the NVMeoFC storage system has a discovery capability, and if the port of the NVMeoFC storage system has the discovery capability, udev (device manager) is triggered. In this case, the host sends the relevant link information to the NVMeoFC storage system, and triggers the nvme command by the preconfigured rule file to automatically complete the connection with the NVMeoFC storage system.
From the above procedure, it can be seen that the process of automatically connecting the NVMeoFC storage system by the host relies on the problem of the port triggering udev for the communication connection. If the NVMeoFC storage system cannot provide the NVMe connection service due to an abnormal reason when the port connection is established, the host cannot establish a communication connection with the NVMeoFC storage system even if the NVMeoFC storage system is restored to normal. Obviously, this does not guarantee the reliability of the host in establishing a communication connection with the NVMeoFC storage system. Currently, there is no more effective solution to this technical problem.
Disclosure of Invention
In view of the above, the present invention is directed to a method, an apparatus, a device and a medium for communication connection between a host and a storage system, so as to ensure reliability of the host when the host establishes a communication connection with the NVMeoFC storage system. The specific scheme is as follows:
a communication connection method of a host and a storage system is applied to an out-of-band management server and comprises the following steps:
when the configuration information of the NVMeoFC storage system changes, obtaining change configuration information of the change of the configuration information in the NVMeoFC storage system;
determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information;
and if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host so as to enable the target host to establish communication connection with the NVMeoFC storage system.
Preferably, the process of obtaining the changed configuration information of the changed configuration information in the NVMeoFC storage system when the configuration information of the NVMeoFC storage system is changed includes:
monitoring configuration information of the NVMeoFC storage system in real time by using a state change program module which is added in the NVMeoFC storage system in advance;
and if the configuration information of the NVMeoFC storage system changes, acquiring the changed configuration information with the changed configuration information in the NVMeoFC storage system through the state change program module.
Preferably, the method further comprises:
if the target host is not registered in the out-of-band management server, judging that the target host is abnormal, and prompting early warning information.
Preferably, the method further comprises:
a status subscription program module is added on the target host in advance, and the NQN of the target host is registered to the out-of-band management server by utilizing the status subscription program module.
Preferably, the process of sending the target configuration information corresponding to the target host in the change configuration information to the target host includes:
and sending the target configuration information corresponding to the target host in the changed configuration information to the state subscription program module, and sending the target configuration information to the target host by utilizing the state subscription program module.
Preferably, the method further comprises:
and periodically detecting the communication connection state between the target host and the NVMeoFC storage system by using the state subscription program module.
Correspondingly, the invention also discloses a communication connection device of the host and the storage system, which is applied to the out-of-band management server and comprises the following steps:
the information acquisition module is used for acquiring changed configuration information of the configuration information in the NVMeoFC storage system when the configuration information of the NVMeoFC storage system is changed;
the host determining module is used for determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information;
and the communication connection module is used for sending target configuration information corresponding to the target host in the change configuration information to the target host if the target host is registered in the out-of-band management server so as to enable the target host to establish communication connection with the NVMeoFC storage system.
Correspondingly, the invention also discloses a communication connection device of the host and the storage system, which comprises:
a memory for storing a computer program;
a processor for implementing the steps of a method of communication connection of a host to a storage system as disclosed above when executing said computer program.
Correspondingly, the invention also discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the steps of the communication connection method of the host and the storage system when being executed by a processor.
Therefore, in the invention, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server can acquire the changed configuration information of the configuration information in the NVMeoFC storage system and determine a target host with the changed configuration information in the NVMeoFC storage system according to the changed configuration information; and if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host establishes communication connection with the NVMeoFC storage system. Compared with the prior art, the method utilizes the out-of-band management server to acquire the changed configuration information of the configuration information in the NVMeoFC storage system, and sends the target configuration information corresponding to the target host in the changed configuration information to the target host, so that the communication connection between the target host and the NVMeoFC storage system is established. The communication connection between the host and the NVMeoFC storage system is established without relying on the port triggering udve, so that the reliability of the host when the communication connection is established with the NVMeoFC storage system can be further ensured. Correspondingly, the communication connection device, the device and the medium for the host and the storage system have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flowchart of a method for communication connection between a host and a storage system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a target host establishing communication connection with an NVMeoFC storage system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a communication connection device between a host and a storage system according to an embodiment of the present invention;
fig. 4 is a block diagram of a communication connection device of a host and a storage system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of a method for communication connection between a host and a storage system according to an embodiment of the present invention, where the method includes:
step S11: when the configuration information of the NVMeoFC storage system changes, obtaining changed configuration information of the change of the configuration information in the NVMeoFC storage system;
step S12: determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information;
step S13: and if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host so as to enable the target host to establish communication connection with the NVMeoFC storage system.
In this embodiment, a method for connecting a host to a storage system in communication is provided, by which reliability of the host when the host establishes a communication connection with the NVMeoFC storage system can be ensured. The communication connection method is specifically described by taking an out-of-band management server as an execution subject.
Specifically, when a host allowing access, a namespace or an NVMeoFC storage system is newly added to the NVMeoFC storage system, and an NVMeoFC service cannot be provided to the access host at the current moment, the configuration information of the NVMeoFC storage system is changed, and in this case, the out-of-band management server obtains the change configuration information with the changed configuration information from the NVMeoFC storage system.
When the out-of-band management server obtains the changed configuration information of the configuration information in the NVMeoFC storage system, the out-of-band management server determines a target host with the changed configuration information in the NVMeoFC storage system according to the changed configuration information, and detects whether the target host is registered on the out-of-band management server.
It should be noted that, the host whose configuration information is changed in authorization in the NVMeoFC storage system may be one or multiple hosts. Accordingly, the number of target hosts may be one or plural, and is not particularly limited herein.
If the target host is registered in the out-of-band management server, the out-of-band management server sends target configuration information corresponding to the target host in the changed configuration information to the target host; when receiving target configuration information corresponding to the target host sent by the out-of-band management server, the target host judges whether the target host establishes communication connection with the NVMeoFC storage system; if the target host establishes communication connection with the NVMeoFC storage system, the target host does not need to perform any action; if the target host does not establish a communication connection with the NVMeoFC storage system, the target host establishes a communication connection with the NVMeoFC storage system through the target configuration information.
Compared with the prior art, the method utilizes the out-of-band management server to acquire the changed configuration information of the configuration information in the NVMeoFC storage system, and sends the target configuration information corresponding to the target host in the changed configuration information to the target host, so that the communication connection between the target host and the NVMeoFC storage system is established. In this way, the communication connection between the host and the NVMeoFC storage system is not required to be established by relying on the port trigger ude, so that the reliability of the host in establishing the communication connection with the NVMeoFC storage system can be further ensured.
It can be seen that, in this embodiment, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server obtains the changed configuration information of the configuration information in the NVMeoFC storage system, and determines, according to the changed configuration information, the target host whose configuration information changes in the NVMeoFC storage system; and if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host establishes communication connection with the NVMeoFC storage system. Compared with the prior art, the method utilizes the out-of-band management server to acquire the changed configuration information of the configuration information in the NVMeoFC storage system, and sends the target configuration information corresponding to the target host in the changed configuration information to the target host, so that the communication connection between the target host and the NVMeoFC storage system is established. The communication connection between the host and the NVMeoFC storage system is established without relying on the port triggering udve, so that the reliability of the host when the communication connection is established with the NVMeoFC storage system can be further ensured.
Based on the above embodiment, this embodiment further describes and optimizes the technical solution, as a preferred implementation manner, the steps are as follows: when the configuration information of the NVMeoFC storage system changes, a process of obtaining the changed configuration information of the configuration information in the NVMeoFC storage system includes:
the method comprises the steps that configuration information of an NVMeoFC storage system is monitored in real time by means of a state change program module which is added in the NVMeoFC storage system in advance;
and if the configuration information of the NVMeoFC storage system changes, acquiring change configuration information of the configuration information in the NVMeoFC storage system through a state change program module.
In this embodiment, in order to ensure that the out-of-band management server can obtain the changed configuration information of the configuration information in the NVMeoFC storage system, a state change program module is added in advance in the NVMeoFC storage system, and the change of the configuration information in the NVMeoFC storage system is monitored in real time by using the state change program module. If the configuration information in the NVMeoFC storage system changes, the state change program module sends the changed configuration information with the changed configuration information in the NVMeoFC storage system to the out-of-band management server at the first time.
It will be appreciated that when the configuration information of the NVMeoFC storage system changes, there may be a new addition of a host in the NVMeoFC storage system that can be authorized for access, or a new addition of a namespace in the NVMeoFC storage system, and there may be a change in pairing between ports in the NVMeoFC storage system. 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 packages all of NQN (NVMe Qualified Name, defined name in NVMe) of the NVMeoFC storage system, NQN of the host for changing the configuration information in the NVMeoFC storage system, and the target port pairing information for changing the port pairing in the NVMeoFC storage system, and sends the packaged information to the out-of-band management server.
Based on the above embodiment, this embodiment further describes and optimizes a technical solution, and as a preferred implementation manner, the above communication connection method further includes:
if the target host is not registered in the out-of-band management server, the target host is judged to be abnormal, and early warning information is prompted.
In practical application, if the target host is not registered in the out-of-band management server, it is indicated that the target host is abnormal, and in this case, the out-of-band management server prompts early warning information. By the arrangement, maintenance personnel can be timely reminded to detect and maintain the target host, so that economic losses caused by abnormal situations of users can be reduced or avoided.
Based on the above embodiment, this embodiment further describes and optimizes a technical solution, and as a preferred implementation manner, the above communication connection method further includes:
a status subscription program module is added to the target host in advance, and the NQN of the target host is registered to the out-of-band management server by using the status subscription program module.
In this embodiment, in order to ensure that the target host can establish reliable communication connection with the NVMeoFC storage system, a status subscription program module is further added to the target host in advance, and the status subscription program module is utilized to independently manage the communication connection condition between the target host and the NVMeoFC storage system. Specifically, after the status subscription program module is added to the target host, the status subscription program module first registers NQN of the target host in the out-of-band management server, and stores the relevant information of the target host in the out-of-band management server.
As a preferred embodiment, the steps are as follows: the process of sending the target configuration information corresponding to the target host in the changed configuration information to the target host includes:
and sending the target configuration information corresponding to the target host in the changed configuration information to the state subscription program module, and sending the target configuration information to the target host by using the state subscription program module.
In order to improve the execution efficiency of the target host, in this embodiment, the status subscription program module is also utilized to receive the target configuration information sent by the out-of-band management server. When the state subscription program module receives the target configuration information sent by the out-of-band management server, the target configuration information is sent to the target host, so that the target host and the NVMeoFC storage system are in communication connection.
As a preferred embodiment, the above communication connection method further includes:
the state subscription program module is utilized to periodically detect the communication connection state between the target host and the NVMeoFC storage system.
In practical application, the state subscription module on the target host passively receives the target configuration information sent by the out-of-band management server, and because the state subscription module also stores the communication connection information between the target host and the NVMeoFC storage system, the state subscription module can also be used for periodically detecting the communication connection state between the target host and the NVMeoFC storage system.
That is, if the state subscription program module detects that the communication connection state between the target host and the NVMeoFC storage system is interrupted, the state subscription program module notifies the target host to establish the communication connection with the NVMeoFC storage system again. Obviously, by the technical scheme provided by the embodiment, the reliable connection between the target host and the NVMeoFC storage system can be further ensured.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a target host and an NVMeoFC storage system according to an embodiment of the present invention. The target Host and the NVMeoFC storage system need to establish a communication connection through an optical fiber, and an HBA (Host Bus Adapter) and an FC Port (i.e., n_port in fig. 2) are respectively disposed in the target Host and the NVMeoFC storage system.
In practical applications, in order to ensure that the target host can establish a reliable communication connection with the NVMeoFC storage system, a state subscription program module and a state change program module need to be added in advance on the target host and the NVMeoFC storage system respectively. The state subscription module registers NQN of the target host to the out-of-band management server, the state change program module monitors configuration information of the NVMeoFC storage system in real time, and if the state change program module detects that the configuration information of the NVMeoFC storage system changes, the state change program module sends change configuration information of the configuration information in the NVMeoFC storage system to the out-of-band management server. The change configuration information of the configuration information in the NVMeoFC storage system comprises: the NVMeoFC storage system is newly added with NQN of the authorizing host, NQN of the NVMeoFC storage system, port information of a pairing port between the authorizing host and the NVMeoFC storage system, and the like.
When the out-of-band management server receives the changed configuration information sent by the state change program module, if the out-of-band management server determines that the target host with changed configuration information in the NVMeoFC storage system is registered in the out-of-band management server, the out-of-band management server sends the configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host and the NVMeoFC storage system are in communication connection.
Referring to fig. 3, fig. 3 is a block diagram of a communication connection device for a host and a storage system according to an embodiment of the present invention, where the device includes:
an information obtaining module 21, configured to obtain, when the configuration information of the NVMeoFC storage system changes, changed configuration information of the configuration information in the NVMeoFC storage system;
the host determining module 22 is configured to determine, according to the changed configuration information, a target host whose configuration information changes in the NVMeoFC storage system;
and the communication connection module 23 is configured to send, if the target host is registered in the out-of-band management server, target configuration information corresponding to the target host in the changed configuration information to the target host, so that the target host and the NVMeoFC storage system establish communication connection.
The communication connection device of the host and the storage system provided by the embodiment of the invention has the beneficial effects of the communication connection method of the host and the storage system.
Referring to fig. 4, fig. 4 is a block diagram of a communication connection device for a host and a storage system according to an embodiment of the present invention, where the device includes:
a memory 31 for storing a computer program;
a processor 32 for implementing the steps of a method of communication connection of a host to a storage system as disclosed above when executing a computer program.
The communication connection device of the host and the storage system provided by the embodiment of the invention has the beneficial effects of the communication connection method of the host and the storage system.
Correspondingly, the embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the communication connection method of the host and the storage system disclosed in the previous description when being executed by a processor.
The computer readable storage medium provided by the embodiment of the invention has the beneficial effects of the communication connection method of the host and the storage system.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The above detailed description of the method, the device, the equipment and the medium for communication connection between the host and the storage system provided by the invention applies specific examples to illustrate the principle and the implementation of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present invention, the present disclosure should not be construed as limiting the present invention in summary.
Claims (8)
1. A method for communication connection between a host and a storage system, applied to an out-of-band management server, comprising:
when the configuration information of the NVMeoFC storage system changes, obtaining change configuration information of the change of the configuration information in the NVMeoFC storage system;
determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information;
if the target host is registered in the out-of-band management server, sending target configuration information corresponding to the target host in the changed configuration information to the target host so as to enable the target host to establish communication connection with the NVMeoFC storage system;
when the configuration information of the NVMeoFC storage system changes, the process of obtaining the changed configuration information of the configuration information in the NVMeoFC storage system includes:
monitoring configuration information of the NVMeoFC storage system in real time by using a state change program module which is added in the NVMeoFC storage system in advance;
and if the configuration information of the NVMeoFC storage system changes, acquiring the changed configuration information with the changed configuration information in the NVMeoFC storage system through the state change program module.
2. The communication connection method according to claim 1, characterized by further comprising:
if the target host is not registered in the out-of-band management server, judging that the target host is abnormal, and prompting early warning information.
3. The communication connection method according to claim 1 or 2, characterized by further comprising:
a status subscription program module is added on the target host in advance, and the NQN of the target host is registered to the out-of-band management server by utilizing the status subscription program module.
4. The communication connection method according to claim 3, wherein the process of transmitting the target configuration information corresponding to the target host among the change configuration information to the target host includes:
and sending the target configuration information corresponding to the target host in the changed configuration information to the state subscription program module, and sending the target configuration information to the target host by utilizing the state subscription program module.
5. The communication connection method according to claim 4, further comprising:
and periodically detecting the communication connection state between the target host and the NVMeoFC storage system by using the state subscription program module.
6. A communication connection device for a host and a storage system, which is applied to an out-of-band management server, comprising:
the information acquisition module is used for acquiring changed configuration information of the configuration information in the NVMeoFC storage system when the configuration information of the NVMeoFC storage system is changed;
when the configuration information of the NVMeoFC storage system changes, the process of obtaining the changed configuration information of the configuration information in the NVMeoFC storage system includes:
monitoring configuration information of the NVMeoFC storage system in real time by using a state change program module which is added in the NVMeoFC storage system in advance;
if the configuration information of the NVMeoFC storage system changes, acquiring the changed configuration information with changed configuration information in the NVMeoFC storage system through the state change program module;
the host determining module is used for determining a target host with changed configuration information in the NVMeoFC storage system according to the changed configuration information;
and the communication connection module is used for sending target configuration information corresponding to the target host in the change configuration information to the target host if the target host is registered in the out-of-band management server so as to enable the target host to establish communication connection with the NVMeoFC storage system.
7. A device for communicatively coupling a host to a storage system, comprising:
a memory for storing a computer program;
a processor for implementing the steps of a method for communication connection of a host to a storage system according to any of claims 1 to 5 when executing said computer program.
8. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of a method for communicatively connecting a host to a storage system according to any one of claims 1 to 5.
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| CN202111678634.9A CN114356810B (en) | 2021-12-31 | 2021-12-31 | Communication connection method, device, equipment and medium for host and storage system |
| PCT/CN2022/113562 WO2023124127A1 (en) | 2021-12-31 | 2022-08-19 | Communication connection method, apparatus and device for host and storage system, and medium |
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| WO2023124127A1 (en) | 2023-07-06 |
| CN114356810A (en) | 2022-04-15 |
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