CN209343320U - Shared memory systems - Google Patents
Shared memory systems Download PDFInfo
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- CN209343320U CN209343320U CN201920061223.7U CN201920061223U CN209343320U CN 209343320 U CN209343320 U CN 209343320U CN 201920061223 U CN201920061223 U CN 201920061223U CN 209343320 U CN209343320 U CN 209343320U
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Abstract
The utility model discloses a kind of shared memory systems, a kind of shared memory systems include: first server node, second server node, storage control chip and storage disk array, first server node and second server node are connect by storage control chip with storage disk array, first server node is used to be used as primary server joint, accesses storage disk array by storage control chip；When second server nodal test first server node failure or maintenance, the control of storage control chip is obtained；After second server node obtains the control of storage control chip, using second server node as primary server joint, and using first server node as from server node.Shared memory systems disclosed by the utility model provide a kind of reliably shared storage scheme, can be used for crucial application.
Description
Technical field
The utility model embodiment is related to computer technology more particularly to a kind of shared memory systems.
Background technique
Current enterprises and institutions are by informationizations such as operation system, production system, financial system, management systems, with skill
Art progress, virtualization technology have been applied to information centre, enterprises and institutions, are based on virtualization technology for a physical server
It invents more virtual servers and distributes to different information system uses.If but physical server delay machine, various information system
System cannot continue externally to service, therefore the demand to the High Availabitity of server (High Available, HA) property is strong.
The solution of current main-stream is by High Availabitity (HA) software and shared storage scheme.High Availabitity software includes quotient
Rose HA, Heartbeat/KeepAlived of open source etc. softwares；Shared storage mode multiplicity, such as uses storage region
Network (Storage Area Network, SAN), divides at network attached storage (Network Attached Storage, NAS)
Cloth document storage system etc. cooperates High Availabitity software to realize the active-standby switch of operation system.
But in these shared storage schemes, SAN/NAS storage system higher cost, system installation and debugging and daily maintenance are multiple
Miscellaneous, distributed file storage system logic is complicated, and different distributions formula file system algorithm and framework difference need professional technique people
Member just can be carried out maintenance.Therefore current shared storage scheme is not suitable for the crucial application of medium-sized and small enterprises.
Utility model content
The utility model provides a kind of shared memory systems, provides a kind of reliably shared storage scheme, can use use
In crucial application.
In a first aspect, the utility model embodiment provides a kind of shared memory systems, comprising: first server node,
Two server nodes, storage control chip and storage disk array；
First server node and second server node are connect by storage control chip with storage disk array；
Storage control chip is used to control the access right of storage disk array, and primary server joint is made to obtain storage control
The control of device chip can not read and write storage disk array from server node；
First server node is used to be used as primary server joint, the control of storage control chip is obtained, by depositing
It stores up controller chip access storage disk array and carries out data storage processing；
Second server node is used to detect the state of first server node, when first server node failure or maintenance
When, obtain the control of storage control chip；
Storage control chip is also used to after second server node obtains the control of storage control chip, by the
Two server nodes are as primary server joint, and using first server node as from server node.
In a kind of possible implementation of first aspect, storage disk array includes the first storage disk array and second
Storage disk array；
Storage control chip is used to control the access right of storage disk array, and first server node is made to pass through storage control
Device chip processed accesses the first storage disk array and carries out data storage processing, and second server node is made to pass through storage control core
Piece accesses the second storage disk array and carries out data storage processing；
First server node or second server node are used to detect the state of another server node, work as first service
When device node or second server node failure or maintenance, the access of notice storage control chip adjustment storage disk array
Power, makes failure or the server node of maintenance that can not read and write storage disk array, and the server node of non-failure passes through storage control
Device chip processed accesses the first storage disk array simultaneously and the second storage disk array carries out data storage processing.
In a kind of possible implementation of first aspect, shared memory systems further include backboard, storage control chip
It is set on backboard, further includes bus interface and disk slot position on backboard；
First server node and second server node are connected on backboard by bus interface, and storage disk array is logical
Disk slot position is crossed to be connected on backboard.
In a kind of possible implementation of first aspect, bus interface includes PCIE interface.
In a kind of possible implementation of first aspect, bus interface is 3.0 interface of PCIE.
In a kind of possible implementation of first aspect, storage disk array includes the disk of at least one SAS interface.
In a kind of possible implementation of first aspect, first server node and second server node include RAID
Card, first server node and second server node access multiple SAS disks in storage disk array by RAID card.
In a kind of possible implementation of first aspect, first server node and second server node pass through RAID
Multiple SAS disks in the JBOD mode access storage disk array of card.
In a kind of possible implementation of first aspect, first server node is specifically used for: detection first server
Whether node is primary server, when first server node is primary server joint, carry storage disk array, and starting application
Service, access storage disk array carry out data storage processing.
In a kind of possible implementation of first aspect, second server node is specifically used for: detection second server
Whether node is primary server, when second server node is primary server joint, carry storage disk array, and starting application
Service, access storage disk array carry out data storage processing.
Shared memory systems provided by the embodiment of the utility model, comprising: first server node, second server section
Point, storage control chip and storage disk array, first server node and second server node pass through storage control
Chip is connect with storage disk array, and storage control chip is used to control the access right of storage disk array, makes primary server
Node obtains the control of storage control chip, can not read and write storage disk array from server node；First server section
Point obtains the control of storage control chip, is accessed and stored by storage control chip for being used as primary server joint
Disk array carries out data storage processing；Second server node is used to detect the state of first server node, when the first clothes
When business device node failure or maintenance, the control of storage control chip is obtained；Storage control chip is also used to when the second clothes
It is engaged in after device node obtains the control of storage control chip, using second server node as primary server joint, and by the
One server node is used as from server node, thus redundant, shared storage mutually between realizing two server nodes, when one
Computer node breaks down, another computer node smoothly adapter tube upper layer software (applications) application and data, continue customer service
Operation is uninterrupted, and data are not lost, and can be used for the computer application deployment of key task occasion, to solve crucial application clothes
The requirements such as business device cannot shut down, and data cannot lose, business cannot interrupt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shared memory systems embodiment one provided by the embodiment of the utility model；
Fig. 2 is the concrete structure schematic diagram of shared memory systems provided by the embodiment of the utility model；
Fig. 3 is the flow chart of shared storage method embodiment one provided by the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is the structural schematic diagram of shared memory systems embodiment one provided by the embodiment of the utility model, such as Fig. 1 institute
Show, shared memory systems provided in this embodiment include:
First server node 11, second server node 12, storage control chip 13 and storage disk array 14.The
One server node 11 and second server node 12 are connect by storage control chip 13 with storage disk array 14.Storage
Redundant array of inexpensive disks 14 includes at least one storage disk.First server node 11 and second server node 12 are independent respectively
Node with processing function is separately installed with independent operation in first server node 11 and second server node 12
System and storage service application.Storage control chip 13 is the storage control for having control storage access right switching capability
Device chip.
Storage control chip 13 is used to control the access right of storage disk array 14, and primary server joint is made to obtain storage
The control of controller chip 13 can not read and write 14 array of storage disk from server node.Storage control chip 13 makes
Only one server node accesses storage disk array 14 within the same time, avoids data contamination.First server node
11 and second server node 12 in, have one as primary server joint another as from server node, only main clothes
The storage disk being engaged in the accessible storage disk array 14 of device node.First server node 11 and second server node 12
Which as primary server joint is determined by storage control chip 13.First server node 11 and second server section
In point 12, there are a primary server joint as default, such as first server node 11, that is, by default,
First server node 11 is used as primary server joint, obtains the control of storage control chip 13, passes through storage control
Chip 13 accesses storage disk array 14 and carries out data storage processing.Second server node 12 detects first server node 11
State, when 11 failure of first server node or maintenance when, obtain storage control chip 13 control.Storage control
Chip 13 is also used to after second server node 12 obtains the control of storage control chip 13, by second server node
12 are used as primary server joint, and first server node 11 is used as from server node.Second server node 12 in this way
It will be just used as primary server joint, storage disk array 14 is accessed by storage control chip 13 and carries out data storage processing.
So, shared memory systems provided in this embodiment are mutually backed up using two server nodes, shared to deposit
Storage, when a server node breaks down, another server node can smoothly adapter tube data storage service, can make
Customer service continues to run uninterruptedly, and data will not lose, and can be used for the computer application deployment of key task occasion, with solution
The requirements such as certainly crucial application server cannot shut down, and data cannot lose, and business cannot interrupt.Meet low latency simultaneously
Property, high bandwidth demand and high availability, reliability and maintainability etc..
Shared memory systems shown in FIG. 1 only show the logic connecting relation between each network element, but in practical applications, respectively
It needs to be attached by certain connecting interface or interface unit between device, Fig. 2 is provided by the embodiment of the utility model
The concrete structure schematic diagram of shared memory systems, as shown in Fig. 2, storage control chip 13 is set on backboard 15, on backboard
It further include bus interface 16 and disk slot position 17.First server node 11 and second server node 12 pass through bus interface 16
It is connected on backboard 15, storage disk array 14 is connected on backboard 15 by disk slot position 17.Namely shared memory systems
It is presented as a complete equipment, wherein each device, which all passes through backboard 15, realizes interconnection.Backboard 15 is in various computers
All exist in hardware system, effect is exactly that a variety of different devices link together.Bus interface is provided on backboard 15
16 and disk slot position 17, bus interface 16 is two, is respectively used to connection first server node 11 and second server node
12, the specific structure of bus interface 16 is determined according to the interface of first server node 11 and second server node 12.Example
Such as, high speed serial expansion bus (peripheral component is often used in current common computer system
Interconnect express, PCIE) interface is as connecting interface, therefore bus interface 16 can be PCIE interface, accordingly
It include PCIE slot, first server node 11 and the second clothes on ground, first server node 11 and second server node 12
Business device node 12 is connect by PCIE slot with the PCIE interface on backboard 15.Several disk slot positions are additionally provided on backboard 15
17, each storage disk in storage disk array 14 is installed in each disk slot position 17.Storage control chip 13 is set to back
On plate 15, connect by the cabling on backboard 15 with each bus interface 16 and each disk slot position 17, so as to be mounted on it is total
First server node 11, second server node 12 and storage disk array 14 in line interface 16 and disk slot position 17 connect
It connects.First server node 11 and second server node 12 use dedicated internal network interface card (Network
Interface Card, NIC) carry out data transmission.Internal network interface card transmits two clothes using the PCIE channel of backboard 15
Data interaction between business device node, without additional cable.Backboard 15 can be designed using open standard PCIE 3.0, be met
The PCIE 3.0 of standard is standardized.Storage control chip 13 can control chip, such as 12Gb/s for various types of memories
Or the memory of 6Gb/s controls chip.First server node 11 accesses the specific mistake of storage disk in storage disk array 14
Journey are as follows: instruction or data reach the bus circuit on backboard 15 by PCIE interface after CPU is handled, the bus on backboard 15
Circuit reaches a storage disk on storage disk array 14 by storage control chip 13, then in the storage disk
It executes instruction or operation data.And when 11 failure of first server node or when needing to safeguard, second server node 12 detects
When to 11 failure of first server node or safeguarding, the control of storage control chip 13 will acquire, then second server
Node 12 accesses the detailed process of storage disk in storage disk array 14 are as follows: instruction or data pass through after CPU is handled
PCIE interface reaches the bus circuit on backboard 15, and the bus circuit on backboard 15 reaches storage by storage control chip 13
A storage disk on redundant array of inexpensive disks 14, then executes instruction in the storage disk or operation data.
Further, each storage disk in storage disk array 14 can be Serial Attached SCSI (SAS) interface (Serial
Attached SCSI, SAS) hard disk, then disk slot position 17 is also to meet the disk slot position of SAS standard.Simultaneously as depositing
Storing up in redundant array of inexpensive disks 14 includes multiple storage disks, in order to enable first server node 11 and second server node 12 to visit
It asks multiple storage disks, therefore, disk array can be set on first server node 11 and second server node 12
(Redundant Arrays of Independent Drives, RAID) card, primary server joint 11 and from server node
12 access multiple SAS disks in storage disk array 14 by RAID card.Primary server joint 11 and from server node 12
In RAID card by disk cluster (Just a Bunch Of Disks, JBOD) mode will be multiple in storage disk array 14
SAS storage disk is presented to the operating system in first server node 11 and second server node 12.
Operating system is installed respectively in first server node 11 and second server node 12, application deployment software,
Configure High Availabitity software, operating system, the application software, Gao Ke that first server node 11 and second server node 12 are disposed
It is completely the same with software version.RAID card in first server node 11 and second server node 12 supports JBOD mode,
Naked disk is presented to operating system, operating system uses multipath line (multi-path) assembly management disk, considers number
Software PLC should be used to do RAID1/RAID5/RAID10 redundancy according to safety.
In first server node 11 and second server node 12, in order to meet shared storage, need to be separately operable one
A script, in first server node 11 and second server node 12, after executing starting script, operation heartbeat detection clothes
Business executes the service for hanging over shared storage, then starts application service script when detecting itself is primary server joint,
If itself not being primary server joint, then heartbeat inspecting service will be re-executed.After starting application service script, detection
Whether there is exit instruction, is executed if having exit instruction and exit script.
Shared memory systems provided in this embodiment, comprising: first server node, second server node, storage control
Device chip and storage disk array processed, first server node and second server node pass through storage control chip and storage
Disk array connection, storage control chip are used to control the access right of storage disk array, deposit primary server joint acquisition
The control for storing up controller chip, can not read and write storage disk array from server node；First server node is used for conduct
Primary server joint, obtain storage control chip control, by storage control chip access storage disk array into
Row data storage processing；Second server node is used to detect the state of first server node, when the event of first server node
When barrier or maintenance, the control of storage control chip is obtained；Storage control chip is also used to obtain when second server node
After the control for taking storage control chip, using second server node as primary server joint, and by first server section
Point is used as from server node, thus redundant, shared storage mutually between realizing two server nodes, when a computer node
Break down, another computer node smoothly adapter tube upper layer software (applications) application and data, continue to run customer service uninterruptedly,
Data are not lost, and can be used for the computer application deployment of key task occasion, cannot be closed with solving crucial application server
Machine, the requirements such as data cannot lose, business cannot interrupt.
Further, in shared memory systems provided by the embodiment of the utility model, storage disk array 14 includes first
Storage disk array and the second storage disk array；Storage control chip 13 is used to control the access of storage disk array 14
Power makes first server node 11 access the first storage disk array by storage control chip 13 and carries out data store
Reason makes second server node 12 access the second storage disk array by storage control chip 13 and carries out data store
Reason；First server node 11 or second server node 12 are used to detect the state of another server node, work as first service
When device node 11 or 12 failure of second server node or maintenance, notice storage control chip 13 adjusts storage disk array 14
Access right, make failure or the server node of maintenance that can not read and write storage disk array, the server node of non-failure passes through
Storage control chip 13 accesses the first storage disk array simultaneously and the second storage disk array carries out data storage processing.?
That is a part that first server node 11 and second server node 12 respectively correspond in storage disk array 14 is deposited
Disk is stored up, storage service can be separately operable, when a server node fault, another accessible failure of server node
The corresponding storage disk of server node so that business will not interrupt.
Fig. 3 is the flow chart of shared storage method embodiment one provided by the embodiment of the utility model, the present embodiment provides
Shared storage method be applied to shared memory systems, shared memory systems include: first server node, second server section
Point, storage control chip and storage disk array, first server node and second server node pass through storage control
Chip is connect with storage disk array.As shown in figure 3, method provided in this embodiment includes:
Step S301, the access right of storage control chip controls storage disk array deposit primary server joint acquisition
The control for storing up controller chip, can not read and write storage disk array from server node.
Step S302, first server node obtain the control of storage control chip as primary server joint, lead to
It crosses storage control chip access storage disk array and carries out data storage processing.
Step S303, the state of second server nodal test first server node, when first server node failure
Or when maintenance, the control of storage control chip is obtained.
Step S304, after second server node obtains the control of storage control chip, storage control chip
Using second server node as primary server joint, and using first server node as from server node.
The concrete methods of realizing of shared storage method provided in this embodiment has carried out in detail in the embodiment shown in fig. 1
Describe in detail bright, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Further, on the basis of embodiment shown in Fig. 3, the access of storage control chip controls storage disk array
Power makes first server node access the first storage disk array by storage control chip and carries out data storage processing, makes
Second server node accesses the second storage disk array by storage control chip and carries out data storage processing；First service
The state of device node or another server node of second server nodal test, when first server node or second server section
When point failure or maintenance, the access right of notice storage control chip adjustment storage disk array makes the service of failure or maintenance
Device node can not read and write storage disk array, and the server node of non-failure accesses first by storage control chip simultaneously and deposits
It stores up disk array and the second storage disk array carries out data storage processing.
Further, on the basis of embodiment shown in Fig. 3, first server node passes through as primary server joint
Storage control chip accesses storage disk array and carries out data storage processing, comprising: first server nodal test itself is
No is primary server；When first server node is primary server joint, carry storage disk array；First server node
Start application service, access storage disk array carries out data storage processing；When second server node is as primary server section
When point, storage disk array is accessed by storage control chip and carries out data storage processing, comprising: the inspection of second server node
Survey whether itself is primary server；When second server node is primary server joint, carry storage disk array；Second clothes
Business device node starts application service, and access storage disk array carries out data storage processing.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, this is practical
It is novel to be realized by software and required common hardware, naturally it is also possible to by hardware realization, but in many cases the former
It is more preferably embodiment.Based on this understanding, the technical solution of the utility model substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which can store computer-readable
Floppy disk, read-only memory (Read-Only Memory, ROM), random access memory in storage medium, such as computer
(Random Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are used so that one
Computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the utility model
The method stated.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of shared memory systems characterized by comprising first server node, second server node, storage control
Device chip and storage disk array；
The first server node and the second server node pass through the storage control chip and the storage magnetic
Disk array connection；
The storage control chip is used to control the access right of the storage disk array, makes described in primary server joint acquisition
The control of storage control chip can not read and write the storage disk array from server node；
The first server node is used to be used as primary server joint, obtains the control of the storage control chip, leads to
It crosses the storage control chip and accesses the storage disk array progress data storage processing；
The second server node is used to detect the state of the first server node, when the first server node event
When barrier or maintenance, the control of the storage control chip is obtained；
The storage control chip is also used to obtain the control of the storage control chip when the second server node
Quan Hou, using the second server node as primary server joint, and using the first server node as from server
Node.
2. shared memory systems according to claim 1, which is characterized in that the storage disk array includes the first storage
Disk array and the second storage disk array；
The storage control chip is used to control the access right of the storage disk array, keeps the first server node logical
It crosses the storage control chip and accesses the first storage disk array progress data storage processing, make the second server
Node accesses the second storage disk array by the storage control chip and carries out data storage processing；
The first server node or the second server node are used to detect the state of another server node, when described
When first server node or the second server node failure or maintenance, notify described in the storage control chip adjustment
The access right of storage disk array makes failure or the server node of maintenance that can not read and write the storage disk array, non-failure
Server node pass through the storage control chip simultaneously access the first storage disk array and it is described second storage
Disk array carries out data storage processing.
3. shared memory systems according to claim 1, which is characterized in that the shared memory systems further include backboard,
The storage control chip is set on the backboard, further includes bus interface and disk slot position on the backboard；
The first server node and the second server node are connected on the backboard by bus interface, described to deposit
Storage disk array is connected on the backboard by disk slot position.
4. shared memory systems according to claim 3, which is characterized in that the bus interface includes PCIE interface.
5. shared memory systems according to claim 4, which is characterized in that the bus interface is PCIE3.0 interface.
6. described in any item shared memory systems according to claim 1~5, which is characterized in that the storage disk array packet
Include the disk of at least one SAS interface.
7. shared memory systems according to claim 6, which is characterized in that the first server node and described second
Server node includes RAID card, and the first server node and the second server node pass through described in RAID card access
Multiple SAS disks in storage disk array.
8. shared memory systems according to claim 7, which is characterized in that the first server node and described second
Multiple SAS disks in storage disk array described in the JBOD mode access that server node passes through RAID card.
9. described in any item shared memory systems according to claim 1~5, which is characterized in that the first server node
It is specifically used for: detects whether the first server node is primary server, when the first server node is primary server
When node, storage disk array described in carry starts application service, accesses the storage disk array and carries out data store
Reason.
10. described in any item shared memory systems according to claim 1~5, which is characterized in that the second server node
It is specifically used for: detects whether the second server node is primary server, when the second server node is primary server
When node, storage disk array described in carry starts application service, accesses the storage disk array and carries out data store
Reason.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783280A (en) * | 2019-01-15 | 2019-05-21 | 上海海得控制系统股份有限公司 | Shared memory systems and shared storage method |
| CN112948344A (en) * | 2021-04-09 | 2021-06-11 | 苏州菲瑞斯信息技术有限公司 | Database backup server and system based on HDFS technology |
-
2019
- 2019-01-15 CN CN201920061223.7U patent/CN209343320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783280A (en) * | 2019-01-15 | 2019-05-21 | 上海海得控制系统股份有限公司 | Shared memory systems and shared storage method |
| CN112948344A (en) * | 2021-04-09 | 2021-06-11 | 苏州菲瑞斯信息技术有限公司 | Database backup server and system based on HDFS technology |
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