CN110069290A - A kind of control parameter configuration method, system and the associated component of more BMC - Google Patents
A kind of control parameter configuration method, system and the associated component of more BMC Download PDFInfo
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- CN110069290A CN110069290A CN201910376187.8A CN201910376187A CN110069290A CN 110069290 A CN110069290 A CN 110069290A CN 201910376187 A CN201910376187 A CN 201910376187A CN 110069290 A CN110069290 A CN 110069290A
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- bmc
- control parameter
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- adjusted
- list
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4416—Network booting; Remote initial program loading [RIPL]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
Abstract
This application discloses control parameter configuration method, system, device and the computer readable storage mediums of a kind of more BMC, comprising: configures the independent address I2C for each BMC, each BMC passes through I2C connection；Main BMC is determined in all BMC；Control parameter to be adjusted is sent to main BMC；According to the address I2C from BMC corresponding with main BMC, control parameter to be adjusted is sent to from BMC by main BMC, so that all BMC configure corresponding control parameter according to control parameter to be adjusted is synchronous.The application passes through simple networking of the I2C to each BMC, it allows between each BMC and carries out free communication, the BMC of any one server of connection carries out control parameter configuration, the BMC of networking can modify control parameter automatic synchronization, accomplish the synchronous coupling of parameter modification, management cost is reduced, shortens the management time, increases the safety and reliability of server admin.
Description
Technical field
This application involves server fields, more particularly to control parameter configuration method, system and the correlation of a kind of more BMC
Component.
Background technique
Raising with user to server performance demand, user to the quantity required of server computing node also increasingly
More, a large amount of server centered is placed in remote equipment room or data center by more user's selections, passes through server monitoring pipe
Module BMC (Baseboard Management Controller, baseboard management controller) is managed remotely to be managed.Specifically
, user connects BMC by network remote, configures to the control parameter of BMC, so that BMC triggers CPLD (Complex
Programmable Logic Device, Complex Programmable Logic Devices), to realize the machine open/close to server, restart
Deng operation, enter computer room operating physical host without user.
In view of a large amount of servers are set to remote equipment room, when needing to be managed server, need user to clothes
Business device is connected and is controlled one by one, such as needs to restart 100 equipment, and user needs to connect and operate 100 times, not only cumbersome
Also it wastes time, and control has that control is asynchronous and handles not in time, so that the efficiency of management is low one by one.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art need to solve at present
Problem.
Summary of the invention
The purpose of the application is to provide the control parameter configuration method of more BMC a kind of, system, device and computer-readable deposits
Control parameter synchronous vacations may be implemented in storage media, reduce management cost, shorten the management time, increase the peace of server admin
Full property and reliability.
In order to solve the above technical problems, this application provides the control parameter configuration methods of more BMC a kind of, comprising:
The independent address I2C is configured for each BMC, wherein each BMC passes through I2C connection；
Main BMC is determined in all BMC；
Control parameter to be adjusted is sent to the main BMC；
According to the address I2C from BMC corresponding with the main BMC, by the main BMC to described from described in BMC transmission
Control parameter to be adjusted, so that all BMC configure corresponding control parameter according to the control parameter to be adjusted is synchronous.
Preferably, after the independent address I2C for each BMC configuration, control ginseng to be adjusted is sent to the main BMC
Before number, the control parameter configuration method further include:
Establish list corresponding with all BMC；
By the list synchronization into all BMC.
Preferably, the process of foundation list corresponding with all BMC specifically:
List corresponding with all BMC is established by the main BMC.
Preferably, the process of foundation list corresponding with all BMC specifically:
All BMC are divided into multiple groups by preset rules；
Establish list corresponding with the BMC all in every group.
Preferably, it is described by the list synchronization into all BMC after, which also wraps
It includes:
It is instructed according to the deletion received and deletes corresponding BMC from the list；
Or it is instructed according to the increase received and corresponding BMC is added in the list.
Preferably, the process that main BMC is determined in all BMC specifically:
Main BMC is determined in all BMC by I2C controller.
Preferably, the control parameter to be adjusted includes that server booting parameter or server shutdown parameter or service are thought highly of
Open parameter or shielding physical button parameter.
In order to solve the above technical problems, present invention also provides the control parameters of more BMC a kind of to configure system, comprising:
Distribution module, for configuring the independent address I2C for each BMC, wherein each BMC passes through I2C connection；
Determining module, for determining main BMC in all BMC；
Data transmission blocks send control parameter to be adjusted to the main BMC；
Data simultaneous module, for according to the address I2C from BMC corresponding with the main BMC, by the main BMC to
It is described to send the control parameter to be adjusted from BMC, so that all BMC are according to the synchronous configuration of the control parameter to be adjusted
Corresponding control parameter.
In order to solve the above technical problems, present invention also provides the control parameter configuration devices of more BMC a kind of, comprising:
Memory, for storing computer program；
Processor realizes the control parameter of more BMC as described in any one above when for executing the computer program
The step of configuration method.
In order to solve the above technical problems, the computer can present invention also provides a kind of computer readable storage medium
It reads to be stored with computer program on storage medium, realize when the computer program is executed by processor such as any one institute above
The step of stating the control parameter configuration method of more BMC.
This application provides the control parameter configuration methods of more BMC a kind of, comprising: with configuring independent I2C for each BMC
Location, each BMC pass through I2C connection；Main BMC is determined in all BMC；Control parameter to be adjusted is sent to main BMC；According to master
The corresponding address I2C from BMC BMC sends control parameter to be adjusted to from BMC by main BMC, so as to all BMC according to
Adjust the synchronous corresponding control parameter of configuration of control parameter.In practical applications, using the scheme of the application, by I2C to each
The simple networking of a BMC allows between each BMC and carries out free communication, and the BMC of any one server of connection carries out control parameter and matches
It sets, the BMC of networking can modify control parameter automatic synchronization, accomplish the synchronous coupling of control parameter modification, reduce management cost, contracting
Short tube manages the time, increases the safety and reliability of server admin.Present invention also provides the control parameters of more BMC a kind of to match
System, device and computer readable storage medium are set, is had identical with the control parameter configuration method of above-mentioned more BMC beneficial to effect
Fruit.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of step flow chart of the control parameter configuration method of more BMC provided herein；
Fig. 2 is the connection schematic diagram of more BMC provided herein a kind of；
Fig. 3 is that the control parameter of more BMC provided herein a kind of configures the structural schematic diagram of system.
Specific embodiment
The core of the application is to provide the control parameter configuration method of more BMC a kind of, system, device and computer-readable deposits
Control parameter synchronous vacations may be implemented in storage media, reduce management cost, shorten the management time, increase the peace of server admin
Full property and reliability.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Fig. 1 is please referred to, Fig. 1 is a kind of step flow chart of the control parameter configuration method of more BMC provided herein,
Include:
Step 1: configuring the independent address I2C for each BMC, wherein each BMC passes through I2C connection；
Specifically, first on hardware, the BMC of each server apparatus is connected by I2C bus referring to shown in Fig. 2,
It theoretically can connect 127 equipment, it, can be by increasing I2C repeater, to guarantee data when I2C transmission range is longer
Normal transmission.In view of each device address in the same I2C network cannot repeat, after each BMC is by I2C connection, need
Want user that the independent address I2C is set for each BMC by network, to be communicated between each BMC.
Step 2: main BMC is determined in all BMC；
Step 3: sending control parameter to be adjusted to main BMC；
Embodiment as one preferred, control parameter to be adjusted include server booting parameter or server shutdown parameter
Server Restart parameter or shielding physical button parameter.
Specifically, randomly choosing a BMC in all BMC as main BMC, in addition to main BMC, in the I2C network
Other BMC are corresponding with main BMC from BMC, and user is connected according to information such as the IP address of main BMC by network or serial ports
Main BMC is communicated and is managed operation to main BMC, be can specifically include to main BMC and is sent control parameter to be adjusted.
Step 4: according to the address I2C from BMC corresponding with main BMC, control to be adjusted being sent to from BMC by main BMC
Parameter, so that all BMC configure corresponding control parameter according to control parameter to be adjusted is synchronous.
Specifically, main BMC is first determined whether to be adjusted after receiving the control parameter to be adjusted that user is sent by network
Whether control parameter is consistent with current control parameter, it is assumed that control parameter to be adjusted is switching on and shutting down parameter, if the current switch of BMC
Machine parameter is 0, and the switching on and shutting down parameter received is 1, then determines that control parameter to be adjusted and current control parameter are inconsistent, this
When, control parameter to be adjusted is sent to each from BMC according to each address I2C from BMC by main BMC, then presses control to be adjusted
Parameter processed adjusts corresponding control parameter, i.e., switching on and shutting down parameter is revised as 1 by 0, each to receive control to be adjusted from BMC
After parameter, can also first determine whether the control parameter to be adjusted received is consistent with current control parameter, if it is inconsistent,
Corresponding control parameter is configured by control parameter to be adjusted.In the application, user can operate the BMC of any one server,
When control parameter changes, the BMC of the server can by data automatic synchronization to other servers in I2C network,
The synchronous coupling of realization multiple servers controls, the Parameters variation of any one BMC, the parameter of other BMC in I2C network
Synchronous variation, greatly reduces maintenance time and cost.
It is understood that I2C data transfer mode is master-slave mode, any one BMC can be used as host transmission
Data, in the application, all BMC default work in slave pattern in I2C network, listening state are in, as the BMC of user's control
When needing to send data, the operating mode of the BMC is changed to by holotype by I2C controller, initiates communication, sign off
Afterwards, the operating mode of the BMC is changed to by slave pattern by I2C controller.In view of any one BMC can be used as master
BMC, and only main BMC needs for control parameter to be adjusted to be synchronized to other from BMC, therefore, is receiving control ginseng to be adjusted
When number, each BMC judges whether itself is main BMC according to the acquisition source of control parameter to be adjusted, specifically, if a certain BMC
The control parameter to be adjusted received carrys out automatic network, then the BMC is main BMC, then will be to after determining that control parameter changes
Adjustment control parameter be sent to by I2C it is each from BMC, then in the control parameter according to parameter configuration to be adjusted itself, such as
The control parameter to be adjusted that a certain BMC of fruit is received comes from I2C Slave, then the BMC is to determine control parameter hair from BMC
After raw change, the control parameter of itself is directly configured according to the control parameter to be adjusted received, is not necessarily to control to be adjusted
Parameter processed is sent to other BMC.
This application provides the control parameter configuration methods of more BMC a kind of, comprising: with configuring independent I2C for each BMC
Location, each BMC pass through I2C connection；Main BMC is determined in all BMC；Control parameter to be adjusted is sent to main BMC；According to master
The corresponding address I2C from BMC BMC sends control parameter to be adjusted to from BMC by main BMC, so as to all BMC according to
Adjust the synchronous corresponding control parameter of configuration of control parameter.In practical applications, using the scheme of the application, by I2C to each
The simple networking of a BMC allows between each BMC and carries out free communication, and the BMC of any one server of connection carries out control parameter and matches
It sets, the BMC of networking can modify control parameter automatic synchronization, accomplish the synchronous coupling of control parameter modification, reduce management cost, contracting
Short tube manages the time, increases the safety and reliability of server admin.
On the basis of the above embodiments:
Embodiment as one preferred after configuring the independent address I2C for each BMC, is sent to be adjusted to main BMC
Before control parameter, the control parameter configuration method further include:
Establish list corresponding with all BMC；
By list synchronization into all BMC.
Embodiment as one preferred establishes the process of list corresponding with all BMC specifically:
List corresponding with all BMC is established by main BMC.
Specifically, by each BMC by I2C connection after, need to establish list and realize I2C networking, wrapped in list
Include the relevant information (including the address I2C) of each BMC in I2C network.And by the list synchronization to each BMC, main BMC can be with
The parameter to be adjusted that will be received is sent to other BMC according to the information in list.Specifically, establishing corresponding with all BMC
The process of list can be user and construct corresponding list according to specific hardware structure, and list is then sent to any BMC, by
The BMC is synchronized to other BMC, is also possible to main BMC by I2C and scans each information from BMC, constructs list, and building is completed
It afterwards, then by the list synchronization, can be according to the information in list, Xiang Yuqi so as to when other BMC are as main BMC to from BMC
It is corresponding to send control parameter to be adjusted from BMC.
Embodiment as one preferred establishes the process of list corresponding with all BMC specifically:
All BMC are divided into multiple groups by preset rules；
Establish list corresponding with BMC all in every group.
Specifically, BMC can be divided into multiple groups during networking by preset requirement, construct list, respectively then with reality
Now the difference of different BMC is configured.Specifically, assuming when carrying out hardware connection, shares 6 servers and connected by I2C bus
Connect, the BMC of 6 servers is denoted as BMC 1, BMC 2, BMC 3, BMC 4, BMC 5, BMC 6 respectively, by BMC 1, BMC 2,
BMC 3 is used as first group, regard BMC 4, BMC 5, BMC 6 as second group, every group is established a list, and be synchronized to each group
In BMC, in the list 1 corresponding with first group of foundation, relevant information (including the I2C including BMC 1, BMC 2, BMC 3
Location), in the corresponding list 2 of second group of foundation, the relevant information (including the address I2C) including BMC 4, BMC 5, BMC 6 is used
Family sends switching on and shutting down parameter to any one BMC (such as BMC 1) in first group, and BMC 1 is receiving switching on and shutting down parameter and judgement
It is whether consistent with current switch machine parameter, if it is not, the switching on and shutting down parameter received to be then sent to BMC 2 and the BMC in list 1
3, user restarts parameter to any one BMC (such as BMC 5) transmission in second group, and BMC 5 restarts parameter and judgement receiving
With currently restart whether parameter consistent, if it is not, then restart the BMC 4 and BMC 6 that parameter is sent in list 2 for what is received,
It is understood that main BMC in each group can only know that it organizes interior each BMC since each group has list independent
Information, therefore main BMC can only into its group remaining from BMC send data.The application realizes a point strategy control to different BMC
System, ensure that the high efficiency to server admin.
Embodiment as one preferred, by list synchronization into all BMC after, which also wraps
It includes:
It is instructed according to the deletion received and is removed from the list corresponding BMC；
Or it is instructed according to the increase received and corresponding BMC is added in list.
Specifically, user can increase or delete to the BMC in list by sending to increase instruction or delete instruction,
Then the list after additions and deletions is synchronized to by main BMC it is each from BMC, can basis when so as to any BMC as main BMC
Information in list sends control parameter to be adjusted from BMC to corresponding, improves the flexibility and versatility of the application.
It is switched on, shuts down, restarts, is arranged and connects in conclusion 127 server sync coupling controls may be implemented in the application
The functions such as the shielding of physical button are touched, and operation and single control can be grouped to the equipment in a networking, are not necessarily to
Connection individual device repeatedly can simplify operating procedure and the time of maintenance personnel, liberates manpower significantly and reduces cost.
Referring to figure 3., Fig. 3 is that the control parameter of more BMC provided herein a kind of configures the structural schematic diagram of system,
Include:
Distribution module 1, for configuring the independent address I2C for each BMC, wherein each BMC passes through I2C connection；
Determining module 2, for determining main BMC in all BMC；
Data transmission blocks 3 send control parameter to be adjusted to main BMC；
Data simultaneous module 4, for being sent out to from BMC by main BMC according to the address I2C from BMC corresponding with main BMC
Control parameter to be adjusted is sent, so that all BMC configure corresponding control parameter according to control parameter to be adjusted is synchronous.
Embodiment as one preferred, the control parameter configure system further include:
Module is established, for establishing list corresponding with all BMC；
List synchronization module is used for list synchronization into all BMC.
Embodiment as one preferred is established module and is specifically used for:
List corresponding with all BMC is established by main BMC.
Embodiment as one preferred is established module and is specifically used for:
All BMC are divided into multiple groups by preset rules；
Establish list corresponding with BMC all in every group.
Embodiment as one preferred, the control parameter configure system further include:
Module is adjusted, is removed from the list corresponding BMC for being instructed according to the deletion received；Basis is also used to connect
Corresponding BMC is added in list by the increase instruction received.
Embodiment as one preferred, determining module 2 are specifically used for:
Main BMC is determined in all BMC by I2C controller.
Embodiment as one preferred, control parameter to be adjusted include server booting parameter or server shutdown parameter
Server Restart parameter or shielding physical button parameter.
The control parameter of more BMC provided herein a kind of configures system, has and the control parameter of above-mentioned more BMC is matched
Set the identical beneficial effect of method.
Above-described embodiment is please referred to for a kind of introduction of the control parameter configuration system of more BMC provided herein,
Details are not described herein by the application.
Correspondingly, present invention also provides the control parameter configuration devices of more BMC a kind of, comprising:
Memory, for storing computer program；
Processor realizes the control parameter configuration method such as the more BMC of any one above when for executing computer program
The step of.
The control parameter configuration device of more BMC provided herein a kind of, has and the control parameter of above-mentioned more BMC is matched
Set the identical beneficial effect of method.
Above-described embodiment is please referred to for a kind of introduction of the control parameter configuration device of more BMC provided herein,
Details are not described herein by the application.
Correspondingly, being stored on computer readable storage medium present invention also provides a kind of computer readable storage medium
There is computer program, the control parameter configuration side such as the more BMC of any one above is realized when computer program is executed by processor
The step of method.
A kind of computer readable storage medium provided herein has the control parameter configuration side with above-mentioned more BMC
The identical beneficial effect of method.
Above-described embodiment, the application are please referred to for a kind of introduction of computer readable storage medium provided herein
Details are not described herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of control parameter configuration method of more BMC characterized by comprising
The independent address I2C is configured for each BMC, wherein each BMC passes through I2C connection；
Main BMC is determined in all BMC；
Control parameter to be adjusted is sent to the main BMC；
According to the address I2C from BMC corresponding with the main BMC, by the main BMC to it is described send from BMC it is described wait adjust
Whole control parameter, so that all BMC configure corresponding control parameter according to the control parameter to be adjusted is synchronous.
2. the control parameter configuration method of more BMC according to claim 1, which is characterized in that described to be configured for each BMC
After the independent address I2C, before sending control parameter to be adjusted to the main BMC, the control parameter configuration method further include:
Establish list corresponding with all BMC；
By the list synchronization into all BMC.
3. the control parameter configuration method of more BMC according to claim 2, which is characterized in that the foundation and all institutes
State the process of the corresponding list of BMC specifically:
List corresponding with all BMC is established by the main BMC.
4. the control parameter configuration method of more BMC according to claim 2, which is characterized in that the foundation and all institutes
State the process of the corresponding list of BMC specifically:
All BMC are divided into multiple groups by preset rules；
Establish list corresponding with the BMC all in every group.
5. according to the control parameter configuration method of more BMC described in claim 2-4 any one, which is characterized in that described to incite somebody to action
After the list synchronization is into all BMC, the control parameter configuration method further include:
It is instructed according to the deletion received and deletes corresponding BMC from the list；
Or it is instructed according to the increase received and corresponding BMC is added in the list.
6. the control parameter configuration method of more BMC according to claim 1, which is characterized in that described in all BMC
The process of the middle main BMC of determination specifically:
Main BMC is determined in all BMC by I2C controller.
7. the control parameter configuration method of more BMC according to claim 1, which is characterized in that the control ginseng to be adjusted
Number includes server booting parameter or server shutdown parameter or Server Restart parameter or shielding physical button parameter.
8. the control parameter of more BMC a kind of configures system characterized by comprising
Distribution module, for configuring the independent address I2C for each BMC, wherein each BMC passes through I2C connection；
Determining module, for determining main BMC in all BMC；
Data transmission blocks send control parameter to be adjusted to the main BMC；
Data simultaneous module, for according to the address I2C from BMC corresponding with the main BMC, by the main BMC to described
The control parameter to be adjusted is sent from BMC, so that all BMC are corresponding according to the synchronous configuration of the control parameter to be adjusted
Control parameter.
9. a kind of control parameter configuration device of more BMC characterized by comprising
Memory, for storing computer program；
Processor realizes the control ginseng of more BMC as described in claim 1-7 any one when for executing the computer program
The step of number configuration method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the control parameter of more BMC as described in claim 1-7 any one when the computer program is executed by processor
The step of configuration method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376187.8A CN110069290A (en) | 2019-05-07 | 2019-05-07 | A kind of control parameter configuration method, system and the associated component of more BMC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910376187.8A CN110069290A (en) | 2019-05-07 | 2019-05-07 | A kind of control parameter configuration method, system and the associated component of more BMC |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158783A (en) * | 2019-12-29 | 2020-05-15 | 山东英信计算机技术有限公司 | Environment variable modification method, device, equipment and readable storage medium |
| CN111181787A (en) * | 2019-12-30 | 2020-05-19 | 浪潮电子信息产业股份有限公司 | BMC parameter configuration method, device, equipment and medium |
| CN113760607A (en) * | 2021-08-31 | 2021-12-07 | 云尖信息技术有限公司 | Dual-BMC (baseboard management controller) main and standby and data synchronization method |
-
2019
- 2019-05-07 CN CN201910376187.8A patent/CN110069290A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158783A (en) * | 2019-12-29 | 2020-05-15 | 山东英信计算机技术有限公司 | Environment variable modification method, device, equipment and readable storage medium |
| CN111158783B (en) * | 2019-12-29 | 2022-06-03 | 山东英信计算机技术有限公司 | Environment variable modification method, device and equipment and readable storage medium |
| CN111181787A (en) * | 2019-12-30 | 2020-05-19 | 浪潮电子信息产业股份有限公司 | BMC parameter configuration method, device, equipment and medium |
| CN111181787B (en) * | 2019-12-30 | 2023-10-13 | 浪潮电子信息产业股份有限公司 | BMC parameter configuration method, device, equipment and medium |
| CN113760607A (en) * | 2021-08-31 | 2021-12-07 | 云尖信息技术有限公司 | Dual-BMC (baseboard management controller) main and standby and data synchronization method |
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Application publication date: 20190730 |