CN109005070A - A kind of hot standby equipment of dual-computer redundancy based on shared drive - Google Patents
A kind of hot standby equipment of dual-computer redundancy based on shared drive Download PDFInfo
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- CN109005070A CN109005070A CN201811007393.3A CN201811007393A CN109005070A CN 109005070 A CN109005070 A CN 109005070A CN 201811007393 A CN201811007393 A CN 201811007393A CN 109005070 A CN109005070 A CN 109005070A
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- main processor
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- backup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
- H04L12/40195—Flexible bus arrangements involving redundancy by using a plurality of nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40241—Flexray
Abstract
The invention discloses a kind of hot standby equipment of the dual-computer redundancy based on shared drive, wherein include: first the second main processor board of main processor board after the power-up, determining one through consultation be working host one is backup host；The FLEXRAY bus of working host sends activation, and the operation result that backup machine generates is not enabled to be sent；The data of backup machine monitoring work host, which export, to be simultaneously compared with the operation result of backup machine, and is recorded working machine and sent progress, when backup machine is upgraded to working machine, is sent from comparing difference；Backup host is according to heartbeat signal and heartbeat message monitoring Host Status, and when reaching switching condition, backup machine can upgrade to working host while reset working host, and the business of adapter tube working machine, backs up and be switched to working machine.The hot standby equipment of dual-computer redundancy based on shared drive of the invention, guarantees that normal workflow can be completed in the case where any one board faults in host, improves system reliability.
Description
Technical field
The present invention relates to a kind of dual-machine redundancy backup host framework, especially a kind of dual-computer redundancy based on shared drive is standby
Part host framework.
Background technique
In the higher field of the reliability requirements such as aerospace, it is real that each equipment production firm takes various methods
The redundancy of existing computer system, to improve the reliability of host.Traditional dual-computer redundancy host includes that arbitration board is realized more
To the status monitoring and function switch of two-shipper.Therefore arbitration plate becomes the weak link of dual systems, once arbitrate board
Damage dual systems can not work normally.
Summary of the invention
It is above-mentioned existing for solving the purpose of the present invention is to provide a kind of hot standby equipment of the dual-computer redundancy based on shared drive
There is the problem of technology.
The hot standby equipment of a kind of dual-computer redundancy based on shared drive of the invention, wherein include: the first main processor board second
Main processor board；First the second main processor board of main processor board obtains identical data by network interface and inputs；First main process task
After the power-up, it is backup host that determining one is working host one through consultation to the second main processor board of device plate；Working host
FLEXRAY bus send activation, operation result can be sent to external equipment by FLEXRAY bus, backup machine generates
Operation result not enabled send；The data of backup machine monitoring work host export and are compared with the operation result of backup machine
Compared with, and record working machine and send progress, when backup machine is upgraded to working machine, sent from comparing difference；Backup master
Machine is according to heartbeat signal and heartbeat message monitoring Host Status, and when reaching switching condition, backup machine can upgrade to work
Host resets working host, and the business of adapter tube working machine simultaneously, backs up and be switched to working machine.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein the first main process task
After the second main processor board of device plate carries out slot position detection after powering on, confirmation work registration, both sides' job class is all original state
0x00, healthy score it is big upgrade to working machine, it is working machine, Ling Yizhu that any main processor board, which is arranged, when the same in healthy score
Processor plate is backup machine；Backup machine can not receive working machine heartbeat signal in a ms, and healthy score is greater than threshold value, then rises
Grade backs up and is working machine.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein when backup and inspection
When measuring working machine parameter and changing, first the second main processor board of main processor board passes through Ethernet or the second primary processor
The shared RAM of plate realizes data exchange and parameter synchronization.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein the first main process task
It is linked between the second main processor board of device plate by the data link of shared data, the first main processor board is passed by data link
The FPGA of defeated data to be shared to the second main processor board passes through PCIe after the FPGA of the second main processor board receives data
DMA transfer is initiated, data are sent to the buffer area opened up into the second primary processor board memory.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein the first main process task
Device plate and the second main processor board open up transmission caching in memory and receive caching；First main processor board and the second main process task
Buffer area information is notified the first main place by the access space PCIeBAR by the processor module of device plate in a manner of writing register
Manage the FPGA of device plate and the second main processor board；When first main processor board is needed to the second main processor board shared data,
The processor module of one main processor board writes data to transmission caching, and the FPGA of the first main processor board is notified to share to the second master
Processor plate；The FPGA of first main processor board initiates PCIe DMA transfer, takes out the first main processor board one by one and sends caching
In data, the FPGA of the first main processor board is sent to by memory sharing data link；Second main processor board FPGA is received
To after data, PCIE DMA transfer is initiated, writes data into the reception caching of the second main processor board, is led in the form of interrupting
Know that the second main processor board receives shared data；After second main processor board has handled interruption, the FPGA of the second main processor board
A confirmation message is sent to the FPGA of the first main processor board, after the FPGA of the first main processor board receives confirmation message, in
It is open close to know the success of this shared data transmission of processor module, and start next packet shared data transmission as needed.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein the first main process task
Data link between device plate and the second main processor board is LVDS bus.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein backup machine can not
Working machine heartbeat signal is received, executes handover operation at once；Backup machine can receive working machine heartbeat signal, according to reception
To heartbeat message calculate the healthy score of working host and proceed as follows: backup machine health score >=2, working machine health
Score < 2 executes handover operation；Backup machine health score >=2, working machine health score >=2, backup machine is to the defeated of working machine
Enter, output information carry out complete monitoring, and according to system input, output information agreement, when its working condition of ordered pair carry out in real time
Interpretation, when discovery working machine cannot carry out normal control instruction interaction according to system input, output information agreement, timing agreement
When, execute handover operation；Backup machine health score >=2 do not receive heartbeat message more than 50ms, execute handover operation；Backup machine
Healthy score < 2, does not execute handover operation.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein when backup machine is wanted
Following handover operation is carried out when upgrading to working machine: being resetted working machine by the FPGA of backup machine, enables backup machine work letter
Number for height, can be detected when being again introduced into program self-test after the working machine reset working signal be it is high after enter standby mode；Make
Energy backup machine FLEXRAY interface enters normal transmission mode, and upgrading backup machine working condition is working machine.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein main processor board
It is upper to be loaded with Godson 3A2000 processor module respectively.
One embodiment of the hot standby equipment of the dual-computer redundancy according to the present invention based on shared drive, wherein host supplying power is adopted
With the first power panel and second source plate dual power supply redundancy, the first main processor board and second are supplied electricity to simultaneously by two pieces of power panels
Main processor board.
The hot standby equipment of dual-computer redundancy based on shared drive of the invention, does not depend on arbitration system, by the first primary processor
Plate and the second main processor board are voluntarily negotiated to determine the functions such as working host, working condition, mian engine changeover, guarantee to appoint in host
Normal workflow can be completed in the case where a board faults by anticipating, and improve system reliability.
Detailed description of the invention
Fig. 1 show that the present invention is based on the module maps of the hot standby equipment of the dual-computer redundancy of shared drive；
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention
Specific embodiment is described in further detail.
Fig. 1 is shown the present invention is based on the module map of the hot standby equipment of the dual-computer redundancy of shared drive, as shown in Figure 1, host
Take two-node cluster hot backup redundancy, main processor board A machine and main processor board B equipment for identical hardware configuration, main processor board A1
With B2 through consultation determine one be working host, one be backup host.Two main processor boards A1 and B2 pass through combination pair
The gigabit networking interface of external tapping obtains identical data input from combination external interface 1, and is generated respectively respectively according to input
Operation result, but the FLEXRAY bus transmission of only working host is activated, can be by FLEXRAY bus by operation knot
Fruit is sent to external equipment.The operation result that backup machine generates is not enabled to be sent.But the data of backup machine meeting monitoring work host
It exports and is compared with the operation result of backup machine, and record working machine and send progress, when backup machine is upgraded to working machine,
It is sent from comparing difference.
As shown in Figure 1, host supplying power is designed using power panel A3 and power panel B4 dual power supply redundancy, it is same by two pieces of power panels
When power, use seamless power switching, in the case where any one piece of power panel works normally, host supplying power all can be normal.
As shown in Figure 1, Godson 3A2000 processor module 12 and 22 is loaded on main processor board A1 and B2 respectively as core
Heart processing module, two Godson 3A2000 processor modules 12 and 22 have 1 road gigabit Ethernet for sending heartbeat message；Main process task
Fpga chip 11 and 21 is loaded on device plate A1 and B2 respectively for generating heartbeat signal and monitoring other side's Main Processing Unit heartbeat letter
Number, while thering is one section of memory block to can be used for storing the shared system parameter of two-shipper in fpga chip 11 and 21.
As shown in Figure 1, host can first determine working host and backup host after powering on, it is assumed that main processor board A1 is work
Host, main processor board B2 are backup host, and backup host B2 can be according to heartbeat signal and heartbeat message monitoring host A 1
State, when reaching switching condition, backup machine can upgrade to working host while reset working host, the phase of rapid adapter tube A machine
Pass business.
As shown in Figure 1, the workflow of the hot standby equipment of dual-computer redundancy based on shared drive includes:
Working machine confirms
Main processor board A1 and B2 carry out slot position detection after powering on, it is primary processor that board address (GA0-GA4), which is 11110,
Plate A1,11101 be main processor board B2, and main processor board A1 and B2 self-test starts to be sent out heartbeat signal and heartbeat after passing through
Message, message period 20ms can determine the healthy score of main processor board A1 and B2 according to message content.
Confirm that job class includes:
Both sides' job class is all original state 0x00, healthy score it is big upgrade to working machine, when healthy score is the same
Setting main processor board A1 is working machine, and main processor board B2 is backup machine.Main processor board B2 determines main processor board A1 work
When to make grade not be 0x00, setting job class is main processor board A1 grade+1.
Main processor board A1 heartbeat signal can not be received in main processor board B2200ms, and healthy score is greater than 2, upgrading
Main processor board B2 is working machine.
Tasks synchronization includes:
When working machine parameter changes, main processor board A1 and B2 can pass through Ethernet or main processor board B2
RAM is shared in FPGA21 realizes data exchange and parameter synchronization；
By the data link link dedicated for shared data between main processor board A1 and B2, main processor board A1 is logical
The FPGA21 of data link transmission data to be shared to main processor board B2 is crossed, the FPGA21 of main processor board B2 receives number
According to rear, DMA transfer is initiated by PCIe, data are sent to the buffer area opened up into main processor board B2 memory, primary processor
When plate B2 is to main processor board A1 shared data, process is identical, and detailed step is as follows:
Main processor board A1 and main processor board B2 opens up transmission caching in memory in advance and receives caching (such as without special
It is required that a relatively simple agreement best arrange in advance between FPGA, if buffer area number has a upper limit, size is fixed
And meet address alignment requirements)；
The processor module of main processor board A1 and main processor board B2 is believed buffer area by the access space PCIeBAR
Breath notifies respective FPGA11 and 21 in a manner of writing register；
When main processor board A1 is needed to main processor board B2 shared data, the processor module 12 of main processor board A1 is write
Data are needed to caching, notice FPGA11 is sent by the data sharing of which transmission caching to main processor board B2；
FPGA11 initiates PCIe DMA transfer, takes out main processor board A1 one by one and sends the data in caching, passes through memory
Shared data link is sent to the FPGA22 of main processor board B2；
After the FPGA22 of main processor board B2 receives data, PCIE DMA transfer is initiated, primary processor is write data into
In the reception caching of plate B2, notifier processes device module 22 receives shared data in the form of interrupting；
After processor module 22 has handled interruption, the FPGA of main processor board B2 is sent to the FPGA11 of main processor board A1
One confirmation message, after the FPGA11 of main processor board A1 receives confirmation message, this is shared for interrupt notification processor module 12
Data transmission success, and start next packet shared data transmission as needed；
Data link between main processor board A1 and main processor board B2 is LVDS bus.
3, working host, which switches, includes:
After confirming that main processor board A1 and main processor board B2 is working machine A1 and backup machine B2, backup machine B2 can pass through prison
The heartbeat signal and heartbeat message for listening working machine are made whether to carry out the judgement of mian engine changeover.
Backup machine B2 can not receive working machine A1 heartbeat signal, execute handover operation at once；
Backup machine B2 can receive working machine A1 heartbeat signal, calculate working host according to the heartbeat message received
Healthy score proceed as follows:
Backup machine health score >=2, working machine health score < 2 execute handover operation；
Backup machine health score >=2, working machine health score >=2, backup machine B2 to the input of working machine, output information into
Row complete monitoring, and according to system input, output information agreement, when its working condition of ordered pair carry out real-time interpretation, when discovery work
When normal control instruction interaction cannot be carried out according to system input, output information agreement, timing agreement by making machine, switching behaviour is executed
Make；
Backup machine B2 health score >=2 do not receive heartbeat message more than 50ms, execute handover operation；
Backup machine B2 health score < 2, does not execute handover operation.
Following handover operation is carried out when backup machine B2 will upgrade to working machine A1:
Working machine A1 is resetted by the FPGA22 of backup machine B2, enabling backup machine B2 working signal is height, works as working machine
A1 can detect B2 working signal to enter standby mode after height when being again introduced into program self-test after resetting.
Enabled backup machine flexray interface enters normal transmission mode, and upgrading backup machine B2 working condition is working machine.
The hot standby equipment of dual-computer redundancy based on shared drive of the invention, does not depend on arbitration system, by the first primary processor
Plate and the second main processor board are voluntarily negotiated to determine the functions such as working host, working condition, mian engine changeover, guarantee to appoint in host
Normal workflow can be completed in the case where a board faults by anticipating, and improve system reliability.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of hot standby equipment of dual-computer redundancy based on shared drive characterized by comprising the first main processor board second is main
Processor plate；First the second main processor board of main processor board obtains identical data by network interface and inputs；
After the power-up, it is backup that determining one is working host one through consultation to first the second main processor board of main processor board
Host；
The FLEXRAY bus of working host sends activation, operation result can be sent to outside by FLEXRAY bus and set
Standby, the operation result that backup machine generates is not enabled to be sent；The data of backup machine monitoring work host export and the fortune with backup machine
It calculates result to be compared, and records working machine and send progress, it, can be since at comparing difference when backup machine is upgraded to working machine
It sends；Backup host is according to heartbeat signal and heartbeat message monitoring Host Status, when reaching switching condition, backup machine meeting
Upgrade to working host while resetting working host, and the business of adapter tube working machine, backs up and be switched to working machine.
2. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that the first primary processor
After the second main processor board of plate carries out slot position detection after powering on, confirmation work registration, both sides' job class is all original state
0x00, healthy score it is big upgrade to working machine, it is working machine, Ling Yizhu that any main processor board, which is arranged, when the same in healthy score
Processor plate is backup machine；Backup machine can not receive working machine heartbeat signal in a ms, and healthy score is greater than threshold value, then rises
Grade backs up and is working machine.
3. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that when backup and detection
When changing to working machine parameter, first the second main processor board of main processor board passes through Ethernet or the second main processor board
Shared RAM realize data exchange and parameter synchronization.
4. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that the first primary processor
It is linked between the second main processor board of plate by the data link of shared data, the first main processor board passes through data link transmission
The FPGA of data to be shared to the second main processor board is sent out after the FPGA of the second main processor board receives data by PCIe
DMA transfer is played, data are sent to the buffer area opened up into the second primary processor board memory.
5. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that
First main processor board and the second main processor board open up transmission caching in memory and receive caching；
The processor module of first main processor board and the second main processor board is believed buffer area by the access space PCIeBAR
Breath notifies the FPGA of the first main processor board and the second main processor board in a manner of writing register；
When first main processor board is needed to the second main processor board shared data, the processor module of the first main processor board is write
Data notify the FPGA of the first main processor board to share to the second main processor board to caching is sent；
The FPGA of first main processor board initiates PCIe DMA transfer, takes out the first main processor board one by one and sends the number in caching
According to being sent to the FPGA of the first main processor board by memory sharing data link；
After second main processor board FPGA receives data, PCIE DMA transfer is initiated, the second main processor board is write data into
Reception caching in, notify the second main processor board to receive shared data in the form of interruption；
After second main processor board has handled interruption, the FPGA of the second main processor board is sent to the FPGA of the first main processor board
One confirmation message, after the FPGA of the first main processor board receives confirmation message, this shared number of interrupt notification processor module
According to transmission success, and start next packet shared data transmission as needed.
6. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that the first primary processor
Data link between plate and the second main processor board is LVDS bus.
7. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that backup machine can not connect
Working machine heartbeat signal is received, executes handover operation at once；Backup machine can receive working machine heartbeat signal, according to receiving
Heartbeat message calculate the healthy score of working host and proceed as follows: backup machine health score >=2, working machine health point
Number < 2, executes handover operation；Backup machine health score >=2, working machine health score >=2, backup machine to the input of working machine,
Output information carries out complete monitoring, and according to system input, output information agreement, when ordered pair its working condition sentenced in real time
It reads, when finding that working machine cannot carry out normal control instruction interaction according to system input, output information agreement, timing agreement,
Execute handover operation；Backup machine health score >=2 do not receive heartbeat message more than 50ms, execute handover operation；Backup machine health
Score < 2, does not execute handover operation.
8. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that when backup machine will rise
Grade carries out following handover operation when being working machine:
Working machine is resetted by the FPGA of backup machine, enable backup machine working signal be height, when working machine reset after again into
Working signal can be detected when entering program self-test to enter standby mode after height；Enabled backup machine FLEXRAY interface enters normal
Sending mode, upgrading backup machine working condition are working machine.
9. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that on main processor board
It is loaded with Godson 3A2000 processor module respectively.
10. the hot standby equipment of dual-computer redundancy as described in claim 1 based on shared drive, which is characterized in that host supplying power is adopted
With the first power panel and second source plate dual power supply redundancy, the first main processor board and second are supplied electricity to simultaneously by two pieces of power panels
Main processor board.
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| CN111400214A (en) * | 2020-02-27 | 2020-07-10 | 深圳震有科技股份有限公司 | Method for realizing dual-core shared network port, intelligent terminal and storage medium |
| CN111400214B (en) * | 2020-02-27 | 2021-06-18 | 深圳震有科技股份有限公司 | Method for realizing dual-core shared network port, intelligent terminal and storage medium |
| CN111478947B (en) * | 2020-03-20 | 2023-02-17 | 珠海高凌信息科技股份有限公司 | Method and system for real-time synchronization of main control board and standby control board |
| CN111478947A (en) * | 2020-03-20 | 2020-07-31 | 珠海高凌信息科技股份有限公司 | Real-time synchronization method and system for main control board and standby control board |
| CN111885431A (en) * | 2020-08-03 | 2020-11-03 | 北京环境特性研究所 | Communication control method and device |
| CN113420038A (en) * | 2021-08-23 | 2021-09-21 | 浙江中控技术股份有限公司 | Redundant data transmission method and device for industrial control system |
| CN114237990A (en) * | 2021-11-18 | 2022-03-25 | 通号万全信号设备有限公司 | FPGA chip-based two-multiplication redundancy switching method and device |
| CN114237990B (en) * | 2021-11-18 | 2024-04-26 | 通号万全信号设备有限公司 | Method and device for switching square redundancy based on FPGA chip |
| CN114157528A (en) * | 2021-11-28 | 2022-03-08 | 浙江中控技术股份有限公司 | Redundant communication method, system, electronic device, and storage medium |
| CN115408239A (en) * | 2022-09-09 | 2022-11-29 | 中国兵器装备集团自动化研究所有限公司 | Redundancy system based on bus arbitration |
| CN116545845A (en) * | 2023-07-04 | 2023-08-04 | 四川万流数据服务有限责任公司 | Redundant backup device, system and method for production server |
| CN116545845B (en) * | 2023-07-04 | 2023-09-08 | 四川万流数据服务有限责任公司 | Redundant backup device, system and method for production server |
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