CN114356810A - 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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- 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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Abstract
The application discloses a communication connection method, a device, equipment and a medium of a host and a storage system, wherein the method comprises the following steps: when the configuration information of the NVMeOFC storage system changes, acquiring the changed configuration information of the NVMeOFC storage system, wherein the configuration information changes; 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 the target configuration information corresponding to the target host in the change configuration information to the target host so as to establish communication connection between the target host and 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 in establishing the communication connection 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 communication connection between a host and a storage system.
Background
The problem of an incomplete timeout mechanism exists in NVMe (Non Volatile Memory host controller interface specification), that is, when a host establishes a communication connection with an nvmefc (NVMe over Fibre Channel) storage system, a probabilistic connection failure may exist. The principle that the host is automatically connected with the NVMeOFC storage system is as follows: when the host establishes port connection with the NVMeOFC storage system, whether a port on the NVMeOFC storage system has the discovery capability or not is judged, 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 nvmefc storage system, and triggers the nvme command to automatically complete the connection with the nvmefc storage system by the preconfigured rule file.
From the above process, it can be seen that the process of automatically connecting the nvmefc storage system by the host depends on the problem that the port triggers udev to perform communication connection. If the NVMeoFC storage system cannot provide the NVMe connection service due to abnormal reasons when the port connection is established, even if the NVMeoFC storage system is recovered to be normal, the host cannot establish communication connection with the NVMeoFC storage system. Obviously, this does not guarantee the reliability of the host in establishing a communication connection with the nvmefc storage system. At present, no effective solution for the technical problem exists.
Disclosure of Invention
In view of this, an object of the present invention is to provide 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 establishing communication connection with an 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, acquiring the changed configuration information of the NVMeOFC storage system, wherein the configuration information changes;
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 change configuration information to the target host so as to establish communication connection between the target host and the NVMeOFC storage system.
Preferably, the process of acquiring the changed configuration information, in which the configuration information in the NVMeoFC storage system is changed, when the configuration information in the NVMeoFC storage system is changed includes:
monitoring the 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 of the configuration information in the NVMeOFC storage system through the state change program module.
Preferably, the method further comprises the following steps:
and 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 the following steps:
adding a state subscription program module on the target host in advance, and registering NQN of the target host to the out-of-band management server by using the state subscription program module.
Preferably, the sending, to the target host, the target configuration information corresponding to the target host in the change configuration information 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.
Preferably, the method further comprises the following steps:
and periodically detecting the communication connection state between the target host and the NVMeOFC storage system by utilizing 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 components:
the information acquisition module is used for acquiring 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;
the host determination 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 the 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 that the target host establishes 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 for communication connection of a host and a storage system as disclosed in the foregoing when executing the computer program.
Accordingly, the present invention also discloses a computer readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of a method for communicatively connecting a host and a storage system as disclosed in the foregoing.
Therefore, in the invention, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server acquires the changed configuration information of the changed configuration information in the NVMeoFC storage system, and determines the target host of 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 the target configuration information corresponding to the target host in the change 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 NVMeOFC storage system with changed configuration information, 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 depending on the port trigger udve, so that the reliability of the host in establishing the communication connection with the NVMeOFC storage system can be further ensured. Correspondingly, the communication connection device, the equipment and the medium of the host and the storage system also 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 used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for communicatively connecting 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 a 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 between a host and a storage system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a communication connection method 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, acquiring the changed configuration information of the NVMeOFC storage system, wherein the configuration information changes;
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 the target configuration information corresponding to the target host in the change configuration information to the target host so as to establish communication connection between the target host and the NVMeOFC storage system.
In this embodiment, a communication connection method between a host and a storage system is provided, by which reliability of the host when establishing a communication connection with the NVMeoFC storage system can be ensured. The communication connection method is specifically described with an out-of-band management server as an execution subject.
Specifically, when a host and a namespace which are allowed to access are newly added in the NVMeoFC storage system or the NVMeoFC storage system cannot provide NVMeoFC service to the access host at the present time, the configuration information of the NVMeoFC storage system changes, and in this case, the out-of-band management server acquires the changed configuration information of the configuration information from the NVMeoFC storage system.
When the out-of-band management server obtains the changed configuration information of the configuration information changed in the NVMeOFC storage system, the out-of-band management server determines a target host of which the configuration information is changed 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 number of hosts authorized to change the configuration information in the nvmefc storage system may be one or more. Therefore, the number of target hosts may be one or more, 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 change configuration information to the target host; when the target host receives target configuration information which is sent by the out-of-band management server and corresponds to the target host, whether the target host establishes communication connection with the NVMeOFC storage system or not is judged; 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 communication connection with the NVMeOFC storage system, the target host establishes 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 NVMeOFC storage system with changed configuration information, 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. Therefore, the communication connection between the host and the NVMeOFC storage system is established without depending on the port trigger udve, and the reliability of the host in establishing the communication connection with the NVMeOFC storage system can be further ensured.
As can be seen, in this embodiment, when the configuration information of the NVMeoFC storage system changes, the out-of-band management server may obtain changed configuration information of the NVMeoFC storage system, and determine, according to the changed configuration information, a target host of the NVMeoFC storage system where the configuration information changes; and if the target host is registered in the out-of-band management server, sending the target configuration information corresponding to the target host in the change 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 NVMeOFC storage system with changed configuration information, 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 depending on the port trigger udve, so that the reliability of the host in establishing the communication connection with the NVMeOFC storage system can be further ensured.
Based on the above embodiments, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the above steps: when the configuration information of the NVMeoFC storage system changes, a process of acquiring the changed configuration information of the NVMeoFC storage system with the changed configuration information includes:
monitoring the 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 of the changed 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 in which the configuration information in the NVMeoFC storage system changes, a state change program module is added to the NVMeoFC storage system in advance, 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 of the changed configuration information in the NVMeoFC storage system to the out-of-band management server at the first time.
It can be understood that when the configuration information of the NVMeoFC storage system changes, there may be a case where a host that can be authorized to access is newly added to the NVMeoFC storage system, or a case where a namespace is newly added to the NVMeoFC storage system, or there may be a case where the pairing between the ports in the NVMeoFC storage system changes. 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 may package all NQN (limited Name in NVMe) of the NVMeoFC storage system, NQN of the host with the changed configuration information in the NVMeoFC storage system, and the destination port pairing information with the changed port pairing in the NVMeoFC storage system to the out-of-band management server.
Based on the foregoing embodiment, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the communication connection method further includes:
and 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.
In practical application, if the target host is not registered in the out-of-band management server, it indicates that the target host is abnormal, and in this case, the out-of-band management server will prompt the early warning information. By the arrangement mode, maintenance personnel can be reminded in time to detect and maintain the target host, so that economic loss caused by abnormal situations of users can be reduced or avoided.
Based on the foregoing embodiment, this embodiment further describes and optimizes the technical solution, and as a preferred implementation, the communication connection method further includes:
a state subscription program module is added to the target host in advance and NQN of the target host is registered to the out-of-band management server using the state subscription program module.
In this embodiment, in order to ensure that the target host can establish a reliable communication connection with the NVMeoFC storage system, a state subscription program module is further added to the target host in advance, and the state subscription program module is used to separately manage the communication connection between the target host and the NVMeoFC storage system. Specifically, after adding the status subscription program module on 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 above steps: 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 using the state subscription program module.
In order to improve the execution efficiency of the target host, in the embodiment, the state subscription program module is also used 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 state subscription program module sends the target configuration information to the target host, so that the target host establishes communication connection with the NVMeOFC storage system.
As a preferred embodiment, the communication connection method further includes:
and periodically detecting the communication connection state between the target host and the NVMeOFC storage system by using a state subscription program module.
In practical applications, in addition to passively receiving the target configuration information sent by the out-of-band management server, the state subscription module on the target host 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 communication connection state between the target host and the NVMeoFC storage system.
That is, if the state subscriber program module detects that the communication connection state between the target host and the NVMeoFC storage system is interrupted, the state subscriber program module notifies the target host to establish a communication connection with the NVMeoFC storage system again. Obviously, the technical solution provided by this embodiment can further ensure the reliable connection between the target host and the NVMeoFC storage system.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a target host establishing a communication connection with 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 provided 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 to the target host and the NVMeoFC storage system in advance. The state subscription module registers NQN of the target host to the out-of-band management server, the state change program module monitors the 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 the changed configuration information of the changed configuration information in the NVMeoFC storage system to the out-of-band management server. The configuration information change information of the NVMeoFC storage system includes: the method includes the steps that NQN of an authorized host is newly added in the NVMeOFC storage system, NQN of the NVMeOFC storage system, port information of a pairing port between the authorized host and the NVMeOFC storage system and the like.
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 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 change configuration information to the target host, so that the target host establishes communication connection with the NVMeoFC storage system.
Referring to fig. 3, fig. 3 is a structural diagram of a communication connection device between a host and a storage system according to an embodiment of the present invention, the device includes:
the information obtaining module 21 is configured to obtain change configuration information that the configuration information in the NVMeoFC storage system changes when the configuration information of the NVMeoFC storage system changes;
the host determining module 22 is configured to determine, according to the change configuration information, a target host in the NVMeoFC storage system where the configuration information changes;
and a communication connection module 23, configured to, if the target host is registered in the out-of-band management server, send the target configuration information corresponding to the target host in the change configuration information to the target host, so that the target host establishes a communication connection with the NVMeoFC storage system.
The communication connection device for the host and the storage system provided by the embodiment of the invention has the beneficial effects of the communication connection method for the host and the storage system disclosed in the foregoing.
Referring to fig. 4, fig. 4 is a structural diagram of a communication connection device between a host and a storage system according to an embodiment of the present invention, where the communication connection device includes:
a memory 31 for storing a computer program;
a processor 32 for implementing the steps of a method for communication connection of a host and a storage system as disclosed in the foregoing when executing the 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 disclosed in the foregoing.
Accordingly, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for communicatively connecting a host and a storage system as disclosed in the foregoing.
The computer-readable storage medium provided by the embodiment of the invention has the beneficial effects of the communication connection method between the host and the storage system disclosed in the foregoing.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above detailed description is provided for a communication connection method, apparatus, device and medium between a host and a storage system, and a specific example is applied in this document to explain the principle and implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. 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, acquiring the changed configuration information of the NVMeOFC storage system, wherein the configuration information changes;
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 change configuration information to the target host so as to establish communication connection between the target host and the NVMeOFC storage system.
2. The communication connection method according to claim 1, wherein the process of acquiring the changed configuration information, in which the configuration information in the NVMeoFC storage system is changed, when the configuration information in the NVMeoFC storage system is changed includes:
monitoring the 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 of the configuration information in the NVMeOFC storage system through the state change program module.
3. The communication connection method according to claim 1, further comprising:
and 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.
4. The communication connection method according to any one of claims 1 to 3, characterized by further comprising:
adding a state subscription program module on the target host in advance, and registering NQN of the target host to the out-of-band management server by using the state subscription program module.
5. The communication connection method according to claim 4, wherein the sending, to the target host, target configuration information corresponding to the target host in the change configuration information 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.
6. The communication connection method according to claim 5, further comprising:
and periodically detecting the communication connection state between the target host and the NVMeOFC storage system by utilizing the state subscription program module.
7. A host computer and storage system communication connection device is applied to an out-of-band management server and comprises the following components:
the information acquisition module is used for acquiring 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;
the host determination 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 the 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 that the target host establishes communication connection with the NVMeOFC storage system.
8. A host computer and storage system communication connection apparatus, comprising:
a memory for storing a computer program;
processor for implementing the steps of a method for communicatively connecting a host to a storage system as claimed in any one of claims 1 to 6 when executing said computer program.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of a method for communicatively connecting a host to a storage system as claimed in any one of claims 1 to 6.
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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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| CN202111678634.9A CN114356810B (en) | 2021-12-31 | 2021-12-31 | Communication connection method, device, equipment and medium for host and storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023124127A1 (en) * | 2021-12-31 | 2023-07-06 | 浪潮(北京)电子信息产业有限公司 | Communication connection method, apparatus and device for host and storage system, and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023124127A1 (en) * | 2021-12-31 | 2023-07-06 | 浪潮(北京)电子信息产业有限公司 | Communication connection method, apparatus and device for host and storage system, and medium |
Also Published As
| Publication number | Publication date |
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| WO2023124127A1 (en) | 2023-07-06 |
| CN114356810B (en) | 2023-08-04 |
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