CN106506625A - Four control servers and four control server communications methods - Google Patents
Four control servers and four control server communications methods Download PDFInfo
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- CN106506625A CN106506625A CN201610949391.0A CN201610949391A CN106506625A CN 106506625 A CN106506625 A CN 106506625A CN 201610949391 A CN201610949391 A CN 201610949391A CN 106506625 A CN106506625 A CN 106506625A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of four control server and four control server communications methods, including：Two group controllers；Wherein, two controllers being connected with each other are included in every group controller；Homogeneously connected between controller between group two-by-two；When four control servers carry out data syn-chronization, the data syn-chronization between two controllers in two group controller executed in parallel groups；After the completion of the data syn-chronization between two controllers in each group group, the data syn-chronization of controller between execution group；Efficiency when four control servers carry out data syn-chronization can be improved, is simplified four communication process for controlling servers, and be there is high efficiency and high fault tolerance.
Description
Technical field
The present invention relates to server technology field, more particularly to a kind of four control server and four control server communications methods.
Background technology
Storage server traditional at present mainly has two kinds：Dual control and four controls.Dual control includes two controllers, two controls
Device can be parallel I/O traffic stream, it is allowed to one of one malfunctions and do not affect normal business operation；Four controls include
Four controllers, the process I/O traffic stream that four controllers can be parallel, it is allowed to which most three controllers break down and not shadow
The normal business of sound.Four controls have the efficiency of higher fault-tolerance and Geng Gao compared with dual control, thus high-end server system general all with
Four controls.
Four control servers all compare in hardware connection mode and software communication mode multiple for realizing its parallel processing effect
Miscellaneous.Need any two between four controllers to have link connection in hardware connection, can pass through between such any two points
Direct point-to-point data link.Four nodes state to be consistent on software, can carry out status exchange, also certain each other
Communication mechanism communicated.I.e. four control server connected modes and communication mechanism complexity higher, increased design difficulty and
Cost.
Content of the invention
It is an object of the invention to provide a kind of four control server and four control server communications methods, improve four control servers and enter
Efficiency during row data syn-chronization, simplifies four communication process for controlling server, and there is high efficiency and high fault tolerance.
For solving above-mentioned technical problem, the present invention provides a kind of four and controls server, including：Two group controllers；Wherein, per group
Include two controllers being connected with each other in controller；Homogeneously connected between controller between group two-by-two.
Optionally, per between two controllers in group pass through 8733 link connections of PEX；Between group two-by-two between controller
Pass through 8796 link connections of PEX.
The present invention also provides a kind of four and controls server communications method, controls servers based on described above four, including：
When four control servers carry out data syn-chronization, the number between two controllers in two group controller executed in parallel groups
According to synchronization；After the completion of the data syn-chronization between two controllers in each group group, the data syn-chronization of controller between execution group.
Optionally, the data syn-chronization between two controllers in two group controller executed in parallel groups, including：
Two group controllers are parallel using the data syn-chronization between two controllers in CMS pattern execution groups.
Optionally, when two controllers in first group are the first controller and second controller, two in second group
Controller is the 3rd controller and the 4th controller, the data syn-chronization of controller between execution group, including：
First controller is synchronous with the 3rd controller parallel execution of data with the 4th controller and second controller.
Optionally, when the order according to priority from high to low arranges the first controller, second controller, the 3rd controller
With the priority of the 4th controller, also include：
After four control servers receive request, judge that each controller is from high to low successively according to the priority of controller
No energy responds the request；If can, the request is executed, if can not, judge next controller.
Optionally, the four controls server communications method also includes：
When there is a controller addition cluster, other controllers are synchronously added in the cluster.
A kind of four controls server provided by the present invention, including：Two group controllers；Wherein, two are included in every group controller
The individual controller being connected with each other；Homogeneously connected between controller between group two-by-two；The four controls server has dual control storage service
The simple advantage of controller connected mode in device；The communication means of the four controls server is to carry out data syn-chronization when four control servers
When, the data syn-chronization between two controllers in two group controller executed in parallel groups；When two controllers in each group group it
Between data syn-chronization after the completion of, the data syn-chronization of controller between execution group；When can improve four control servers and carrying out data syn-chronization
Efficiency, simplify four communication process for controlling servers, and there is high efficiency and high fault tolerance.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
The structured flowchart of the four control servers that Fig. 1 is provided by the embodiment of the present invention；
The structured flowchart of another four controls server that Fig. 2 is provided by the embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of four and controls server and four control server communications methods, improves four control servers and enters
Efficiency during row data syn-chronization, simplifies four communication process for controlling server, and there is high efficiency and high fault tolerance.
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Embodiment in based on the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Refer to Fig. 1, the structured flowchart of the four control servers that Fig. 1 is provided by the embodiment of the present invention；Including：Two groups of controls
Device (first group in such as Fig. 1 and second group can also be grouped into pair here)；Wherein, two are included in every group controller
The controller being connected with each other (includes the first controller and second controller, including the 3rd control in second group in such as first group
Device and the 4th controller)；Homogeneously connected between controller between group two-by-two.Directly can lead between two controllers in each group
Letter, can also communicate between two groups, such two groups totally four controllers interconnect to form four complete control interconnection storage services
Device is above-mentioned four controls server.
Specifically, in the embodiment, four controllers are divided into two groups by four control servers, and four controllers are connected two-by-two
Six connecting line connections are needed, you can to realize that the link between any two controller is communicated.Here six connections
Line can be same bus (8796 link of such as 8733 links of PEX, or PEX), or bus not of the same race is (for example
Six connecting line can use 8796 link of 8733 links of PEX and PEX).Due to dual control server in prior art two
It is link-attached by PEX 8733 between individual controller, therefore, in order to there is controller connection side in dual control storage server
The simple advantage of formula, and as far as possible make little change to controller can be by per passing through PEX between two controllers in group
8733 link connections.In order that the communication between four controllers of four control servers is more convenient, i.e., four control communication mechanisms are more
Simple and reliable, can make between group, between controller, to pass through 8796 link connections of PEX two-by-two.I.e. preferred, Fig. 2 is refer to, is schemed
The structured flowchart of the 2 another four controls servers provided by the embodiment of the present invention；Per between two controllers in group pass through PEX
8733 link connections；Pass through 8796 link connections of PEX between group two-by-two between controller.Four are controlled by six links
Device processed is interconnected two-by-two.But two controllers adopt 8733 link connections of PEX, the node between pair to pass through PEX in the pair
8796 link connections, need two 8733 links of PEX and four 8796 links of PEX altogether.
Above-mentioned technical proposal is based on, four controls server provided in an embodiment of the present invention, by four of four control storage servers
Controller is divided into two groups, and per group includes two controllers (or being node into server) and is referred to as pair (i.e. group), two in pair
Individual node is connected with each other communication, is connected with each other communication between pair again, ultimately forms comprising four controllers four control interconnections and deposits
Storage server.Existing dual control storage server is made full use of, minimum change is carried out, four control communication mechanisms is realized, so as to save
Cost, and improve storage server performance.
Below provided in an embodiment of the present invention four control server communications methods are introduced, four controls service described below
Device communication means can be mutually to should refer to above-described four control servers.
The present invention also provides a kind of four and controls server communications method, the hardware foundation based on four control servers described above
On will four controllers be divided into two groups of mode, the method can include：
When four control servers carry out data syn-chronization, the number between two controllers in two group controller executed in parallel groups
According to synchronization；After the completion of the data syn-chronization between two controllers in each group group, the data syn-chronization of controller between execution group.
Specifically, in the communication of four traditional control servers, four nodes (i.e. four controllers) are all equality, arbitrarily
Two nodes all adopt identical communication mode.Four controllers (are divided for two pair for a pair points two-by-two in the present embodiment
For first group and second group in two group such as Fig. 1).First communicated in pair, then carried out the communication between pair.As
With coupling together two traditional dual controls, but it is not to be directly connected to two traditional dual controls, needs any two node enter
By four connecting line connections between i.e. two groups of row communication.So comparing can be parallel in four traditional control two groups of server
Communication in group is carried out, finally in the speed and efficiency for carrying out communication raising data communication between group.According to the connection in group and between group
Bus determines their communication mode.For example different communication modes can be adopted and between pair in pair, be PEX in pair
8733 link communications, are 8796 link communications of PEX between pair.Wherein, two group controllers are parallel using in CMS pattern execution groups
Two controllers between data syn-chronization.Be in each pair by CMS (state of a control machine) pattern carry out message transmission with
Hold mode uniformity.
Such as Fig. 1, when two controllers in first group are the first controller and second controller, two in second group
Controller is the 3rd controller and the 4th controller, the data syn-chronization of controller between execution group, can be by the first controller or
Second controller to the synchronous first group data message of two controllers in second group, from the 3rd controller or the 4th controller to
The synchronous second group data message of two controllers in first group, after the completion of communicate in the group for carry out first group and second group,
Can also be by a controller during first group of two controllers correspond to second group respectively carry out data each other with
Step, such as the first controller is corresponding with the 3rd controller to communicate, and second controller is corresponding with the 4th controller to communicate；Or the
One controller is corresponding with the 4th controller to communicate, and second controller is corresponding with the 3rd controller to communicate；Refer to Fig. 1, Ke Yishi
First controller is synchronous with the 3rd controller parallel execution of data with the 4th controller and second controller.Further to realize
Data syn-chronization between four controllers.Compare former mode and can reduce communication in the group again after communicating between group.
Dividing without priority between four controllers in four traditional control servers, can not so utilize simple
Communication mode realizes redundancy between four control servers etc., and other control, and therefore, four controllers can be divided into by the present embodiment
One master controller and three are from controller.After server receives request, if master controller can respond the operation, execute
Service response is operated；If it is not, being transmitted to which responds the operation from controller.Can also further will be equal for four controllers
One priority is set for example when the order according to priority from high to low arranges the first controller, second controller, the 3rd control
It is the first controller that the priority of device processed and the 4th controller is the prioritization of four controllers>Second controller>3rd
Controller>4th controller, also the method include：When four control servers receive request after, according to controller priority by
High to Low judge whether each controller can respond the request successively；If can, the request is executed, if can not, under judging
One controller.
Specifically, 4 nodes in server all run identical software stack, and can supervise all of I/O traffic
Stream.After server receives request, if the first controller can respond the operation, service response operation is executed；If it could not,
Then it is transmitted to its controller and responds the operation.Repeating process is exactly to judge that second controller can respond the operation, then execute service
Response operation；If it is not, judging that the 3rd controller can respond the operation, then execute service response operation；If it is not,
Judge that the 4th controller can respond the operation, then execute service response operation；If can not, report an error.
Above-described embodiment is based on, the four controls server communications method also includes：When there is a controller addition cluster,
Other controllers are synchronously added in the cluster.Specifically, when in server, a controller adds cluster, other controls
Device is automatically added to cluster.
After four controllers arrange priority, after determining a controller in traditional dual control, straight by PCIe port
Lookup and its interconnection controller is connect, is had and only one of which, but as other four controller status are unanimously so search procedure is multiple
Miscellaneous.After determining a controller in the present embodiment, another controller for being looked in same pair by PEX8733 ports is led to
Cross two controllers that PEX8796 ports are looked in different pair.Carried out by CMS (state of a control machine) pattern in each pair
In the case of message transmission and hold mode are conforming, in addition it is also necessary to carry out the message transmission of two pair and the one of 4 controllers
Cause proterties state, in pair can with executed in parallel, after the completion of carry out message transmission between pair and coherency state conversion again.
Above-mentioned technical proposal is based on, four controls server communications method provided in an embodiment of the present invention has dual control storage clothes
The simple advantage of controller connected mode in business device, it is achieved that four controllers are jointly processed by I/O traffic stream in four control servers,
Four control servers of raising carry out efficiency during data syn-chronization, simplify four communication process for controlling servers, with the height that tradition four is controlled
Effect property and high fault tolerance.
Above provided by the present invention four control servers and four control server communications methods are described in detail.Herein
In apply specific case to the present invention principle and embodiment be set forth, the explanation of above example is only intended to help
Assistant's solution method of the present invention and its core concept.It should be pointed out that for those skilled in the art, not
On the premise of departing from the principle of the invention, some improvement and modification can also be carried out to the present invention, these improvement and modification also fall into
In the protection domain of the claims in the present invention.
Claims (7)
1. a kind of four server is controlled, it is characterised in that include：Two group controllers；Wherein, mutual comprising two in every group controller
The controller of connection；Homogeneously connected between controller between group two-by-two.
2. according to claim 1 four control server, it is characterised in that per between two controllers in group pass through PEX
8733 link connections；Pass through 8796 link connections of PEX between group two-by-two between controller.
3. a kind of four server communications method is controlled, it is characterised in that based on four control servers described in claim 1 or 2, bag
Include：
When four control servers carry out data syn-chronization, the data between two controllers in two group controller executed in parallel groups are same
Step；After the completion of the data syn-chronization between two controllers in each group group, the data syn-chronization of controller between execution group.
4. according to claim 3 four server communications method is controlled, it is characterised in that in two group controller executed in parallel groups
Two controllers between data syn-chronization, including：
Two group controllers are parallel using the data syn-chronization between two controllers in CMS pattern execution groups.
5. according to claim 4 four server communications method is controlled, it is characterised in that when two controllers in first group
For the first controller and second controller, two in second group controller is the 3rd controller and the 4th controller, execution group
Between controller data syn-chronization, including：
First controller is synchronous with the 3rd controller parallel execution of data with the 4th controller and second controller.
6. according to any one of claim 3-5 four control server communications methods, it is characterised in that when according to priority from
High to Low order arranges the priority of the first controller, second controller, the 3rd controller and the 4th controller, also includes：
After four control servers receive request, judge that each controller whether can from high to low successively according to the priority of controller
Respond the request；If can, the request is executed, if can not, judge next controller.
7. according to claim 6 four server communications method is controlled, it is characterised in that also include：
When there is a controller addition cluster, other controllers are synchronously added in the cluster.
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| CN201610949391.0A CN106506625A (en) | 2016-11-02 | 2016-11-02 | Four control servers and four control server communications methods |
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| CN201610949391.0A CN106506625A (en) | 2016-11-02 | 2016-11-02 | Four control servers and four control server communications methods |
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| CN107342902A (en) * | 2017-07-14 | 2017-11-10 | 郑州云海信息技术有限公司 | A kind of link reconfiguration method and system of four controls server |
| CN107769991A (en) * | 2017-08-31 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of PLX8796 stability test methods of middle and high end storage |
| CN107842973A (en) * | 2017-10-18 | 2018-03-27 | 珠海格力电器股份有限公司 | Method for quickly synchronizing mainboard data based on line controller |
| CN109446153A (en) * | 2018-11-07 | 2019-03-08 | 西安微电子技术研究所 | A kind of large capacity solid-state storage blade |
| CN112000286A (en) * | 2020-08-13 | 2020-11-27 | 北京浪潮数据技术有限公司 | Four-control full-flash-memory storage system and fault processing method and device thereof |
| CN113448512A (en) * | 2021-05-23 | 2021-09-28 | 山东英信计算机技术有限公司 | Takeover method, device and equipment for cache partition recovery and readable medium |
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