CN103049505B - Storage engine and storage structure based on storage engine - Google Patents
Storage engine and storage structure based on storage engine Download PDFInfo
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Abstract
Provided are a storage engine and a storage structure. The storage engine comprises a first input/output processor (IOP), a second IOP, a disk interconnection interface, a storage engine interconnection interface and a management interface. The first IOP is connected with at least one disk through the disk interconnection interface and an external exchange module, and the second IOP is connected with the external exchange module. The storage engine is good in expansibility, and due to symmetric design, the storage engine is high in storage efficiency and good in performance. Storage of mass data can be achieved through the storage structure formed by the storage engine, global access can be achieved, and reliability and safety of data storage are high.
Description
Technical field
The present invention relates to Computer Storage field, be specifically related to a kind of storage engines and the storage organization based on base engines.
Background technology
Along with the development of information industry, the raising of data throughput level, people are more and more stronger to data dependency, thus storage system is had higher requirement: along with the development of information industry, the production of data has developed into the large data of PB, EB level magnanimity of the data production mechanism generation of diversification from the TB DBMS of the aspect generations such as scientific algorithm, therefore storage system needs the data that can store more magnanimity; Along with the development of society, the reliability that data store more and more will be related to national economy, therefore propose requirement to the reliability of storage system; Along with the exponential growth of data volume, the dilatation of storage system be must faced by problem, this is a challenge greatly for existing storage system.
On the other hand, in the data in the heart, storage system needs to support various different application.Many application correspond to same data entity.The features such as the diversity of application is embodied in that data access has uncertainty, data have ageing, spatiality, these features need effectively to adjust storage resources dynamically.
Existing storage engines selects the module of corresponding function as required, as then selected an IOP when needs one IO processor (IOP), need then to select two IOP during two IOP, the function that each IOP realizes is the same, and namely all IOP are symmetrical.And because existing storage engines is all select the module of corresponding function to design as required, so do not have fixing structure, extendability is very poor.
In sum, the storage system that can meet above-mentioned requirements cannot be realized based on existing storage engines.
Summary of the invention
Await this, the technical problem to be solved in the present invention is to provide a kind of base engines, to improve performance and the extendability of existing storage engines.
In order to solve the problem, adopt following technical scheme:
A kind of storage engines, comprise an IOP and the 2nd IOP, disk interconnect interface, storage engines interconnect interface and management interface, a described IOP is connected with at least one disk by described disk interconnect interface and outside Switching Module, described 2nd IOP is connected with described outside Switching Module, wherein:
Described storage engines interconnect interface is arranged to: be connected with other storage engines by outside Switching Module;
Described management interface is arranged to: be connected with external management module by this storage engines;
A described IOP is arranged to: read and write described server by described service interface; Disk described at least one is read and write by described disk interconnect interface and described outside Switching Module;
Described 2nd IOP is arranged to: store the RAID metadata all disks of all storage engines sharing described outside Switching Module being done to RAID formation, and receive the instruction of described external management module, upgrade RAID metadata; Store the mirror image of all disks of all storage engines interconnected with this storage engines, and running status and the loading condition of the storage engines at its place is reported to described external management module, according to the instruction of taking over job that described external management module issues, the disk mirroring utilizing it to store takes over the work of corresponding storage engines; When the storage engines at described 2nd IOP place starts, stochastic generation storage engines ID identifies and preserves this ID and identifies; When receive that described external management module sends comprise the read-exclusive write command of disc information that storage engines ID identifies and will read and write after, judge whether consistent the storage engines ID mark comprised in this read-exclusive write command identifies with the storage engines ID of self, if consistent, then perform this exclusive read-write to corresponding disk.
Alternatively, described RAID metadata comprises disk, stripe information, RAID state and the copy information that corresponding RAID comprises.
The another one technical matters that the present invention will solve is to provide a kind of storage organization based on base engines, to meet the requirement of development to storage engines of information industry.
For solving this technical problem, adopt following technical scheme:
A kind of storage organization, comprising: multiple storage engines group, and at least two storage engines as claimed in claim 1 or 2 sharing a Switching Module form a storage engines group, and this storage organization also comprises administration module, wherein:
Described Switching Module is arranged to: realize the exchanges data shared between the storage engines of this Switching Module;
Described administration module is arranged to: disks all in control store engine group is at a time by the exclusive read-write of a storage engines; According to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group; By the deposit position of the storage condition adjustment data of storage engines all in storage engines group; The running status that reception storage engines reports and loading condition, after storage engines a certain in storage engines group lost efficacy, the running status reported according to storage engines and loading condition determine the storage engines of taking over job, and send the instruction of taking over job to corresponding storage engines; When the RAID of storage engines a certain in storage engines group upgrades, notify that in this storage engines group, other storage engines upgrade corresponding RAID metadata.
Alternatively, all in control store engine group disks are at a time by the exclusive read-write of a storage engines:
Select at a time to carry out the exclusive storage engines read and write to a certain disk in all disks corresponding to this storage engines group from storage engines group, and send read-exclusive write command to this storage engines, comprise the disc information that this storage engines ID identifies and will read and write in described read-exclusive write command.
Alternatively, described administration module is arranged in such a way according to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group:
If the current storage engines reading and writing a certain disk has new read-write task in this storage engines group, and during available free in this storage engines group storage engines, replace the storage engines having new read-write task to perform current read-write task by the storage engines of this free time.
Alternatively, described administration module is arranged in such a way by the deposit position of the storage condition adjustment data of storage engines all in storage engines group:
According to the deposit position of the distribution situation dynamic adjusting data of all storage engines in read-write focus, this storage engines group.
Alternatively, the storage engines for the storage engines of taking over job and inefficacy is in same storage engines group.
Alternatively, each storage engines in a storage engines group is connected with at least one disk, and all disks be connected with all storage engines in a storage engines group leave in disk chassis.
Storage engines favorable expandability in the embodiment of the present invention, and because adopt asymmetric design, storage efficiency is high, and performance is good.The storage organization formed by this storage engines can realize the storage to mass data, and can realize global access, and the reliability of data storage and high safety.
Accompanying drawing explanation
Fig. 1 is the storage engines schematic diagram of the embodiment of the present invention;
Fig. 2 is the storage organization schematic diagram based on storage engines of the embodiment of the present invention;
Fig. 3 is the example of the storage engines of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
A kind of storage engines of the embodiment of the present invention, as shown in Figure 1, comprises two IO processors (IOP)---an IOP and the 2nd IOP, service interface, disk interconnect interface, storage engines interconnect interface and management interface, wherein:
Two IOP take asymmetric design, a wherein said IOP primary responsibility IO process, described 2nd IOP mainly carries out the data management in IO process, a described IOP and described 2nd IOP passes through internal bus interconnect, this asymmetric design makes the performance of storage engines significantly improve, because a described IOP is only responsible for IO process, comprise internal IO process and external IO process, and the data management in described 2nd IOP primary responsibility IO process.
A described IOP is connected with external server by described service interface, and a described IOP is also connected with at least one disk by described disk interconnect interface and outside Switching Module.
A described IOP is arranged to: read and write described server by described service interface; Disk described at least one is read and write by described disk interconnect interface and described Switching Module.
Described service interface adopts multi-protocols integral chip, can support IP agreement or FC agreement as required.
Alternatively, the described one interconnection between IOP and disk adopts serial connecting small computer system interface (SAS, the Serial Attached SCSI) interconnection mechanism of standard.
Described 2nd IOP, interconnected by what be connected to realize between storage engines with outside Switching Module.Exchanged by the high-speed interconnect realized between storage engines, to realize operating across storage engines of modules such as managing, RAID is synchronous.
Wherein, described storage engines interconnect interface is dedicated network.
Described 2nd IOP is arranged to: store the RAID metadata all disks of all storage engines sharing described outside Switching Module being done to RAID formation, and receive the instruction of described external management module, upgrade RAID metadata; Store the mirror image of all disks of all storage engines interconnected with this storage engines, and running status and the loading condition of the storage engines at its place is reported to described external management module, according to the instruction of taking over job that described external management module issues, the disk mirroring utilizing it to store takes over the work of corresponding storage engines; When the storage engines at described 2nd IOP place starts, stochastic generation storage engines ID identifies and preserves this ID and identifies; When receive that described external management module sends comprise the read-exclusive write command of disc information that storage engines ID identifies and will read and write after, judge whether consistent the storage engines ID mark comprised in this read-exclusive write command identifies with the storage engines ID of self, if consistent, then perform this exclusive read-write to corresponding disk.
Described RAID metadata comprises the information of the aspect such as disk, stripe information, RAID state, copy that corresponding RAID comprises, and only just changes in establishment with when arranging.RAID metadata is the data for describing the concrete organizational form of RAID, which comprise a RAID disk to be made up of, the information such as the verification relation between the data of each data block, only have RAID metadata to be that synchronous system of just taking care of yourself can normal visit data in each storage engines.
Because be RAID, the all storage engines sharing a Switching Module are formed, because a storage engines is connected with at least one disk, all disks be connected with all storage engines in a storage engines group form a disk group, and a storage engines group is corresponding with a disk group.
Any one storage engines in storage engines group can both access any one in one group of disk corresponding thereto, and directly can not access the disk across group.When certain disk needing access across group, need the storage engines to this disk of management to send request of access, so just can realize the global access of disk.
Alternatively, disk mirroring can become consistance disk mirroring and nonuniformity disk mirroring according to the performance configuration of reliability, be in storage organization can arrangement.Consistance disk mirroring adopts affair mechanism process, and to access the moment all consistent each to guarantee copy and the data in RAID.Nonuniformity disk mirroring is produced by asynchronous replication, only can ensure the final consistency of data.
City's score of the game mode for cloth that RAID combines with disk mirroring enhances the reliability of storage organization.
Described storage engines interconnect interface is arranged to: be connected with other storage engines by outside Switching Module;
Described management interface is arranged to: be connected with external management module by this storage engines.
Alternatively, described storage engines also comprises super IO and BMC module (not shown), and the 26S Proteasome Structure and Function of described super IO and described BMC module belongs to prior art, does not repeat them here.
Described storage engines also comprises verification speed-up chip, described verification speed-up chip is connected with described 2nd IOP, is arranged to: by hardware implementing data check algorithm, realizes the acceleration process of data reliability, its 26S Proteasome Structure and Function belongs to prior art, does not repeat them here.
A kind of storage organization based on storage engines of the embodiment of the present invention, as shown in Figure 2, comprising: multiple storage engines group, at least two storage engines as above sharing a Switching Module form a storage engines group, wherein, this storage organization also comprises administration module.
Described Switching Module is arranged to: realize the exchanges data shared between the storage engines of this Switching Module;
Described administration module is arranged to: disks all in control store engine group is at a time by the exclusive read-write of a storage engines; According to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group; By the deposit position of the storage condition adjustment data of storage engines all in storage engines group; The running status that reception storage engines reports and loading condition, after storage engines a certain in storage engines group lost efficacy, the running status reported according to storage engines and loading condition determine the storage engines of taking over job, and send the instruction of taking over job to corresponding storage engines; When the RAID of storage engines a certain in storage engines group upgrades, notify that in this storage engines group, other storage engines upgrade corresponding RAID metadata.
Alternatively, all in control store engine group disks are at a time by the exclusive read-write of a storage engines:
Select at a time to carry out the exclusive storage engines read and write to a certain disk in all disks corresponding to this storage engines group from storage engines group, and send read-exclusive write command to this storage engines, comprise the disc information that this storage engines ID identifies and will read and write in described read-exclusive write command.
Alternatively, described administration module is arranged in such a way according to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group:
If the current storage engines reading and writing a certain disk has new read-write task in this storage engines group, and during available free in this storage engines group storage engines, replace the storage engines having new read-write task to perform current read-write task by the storage engines of this free time.
Alternatively, described administration module is arranged in such a way by the deposit position of the storage condition adjustment data of storage engines all in storage engines group:
According to the deposit position of the distribution situation dynamic adjusting data of all storage engines in read-write focus, this storage engines group.
Alternatively, the storage engines for the storage engines of taking over job and inefficacy is in same storage engines group.
Because a storage engines is connected with at least one disk, all disks be connected with all storage engines in a storage engines group form a disk group, and a storage engines group is corresponding with a disk group.Disk leaves in disk chassis.
RAID is done to a storage engines group, forms corresponding RAID metadata, in all storage engines in this set, store corresponding RAID metadata.
Each storage engines group can access a corresponding disk group, but directly can not access the disk across group.When certain disk needing access across group, need the storage engines to this disk of management to send request of access, so just can realize the global access of disk.
All disks are at a time by the exclusive read-write of a storage engines, other storage engines of direct read/write disk can not can access this disk by described storage engines interconnect interface, therefore, all storage engines all can have access to disks all in storage organization, as long as have a storage engines normally to work in a storage engines group just can ensure that the data in disk are accessed to.
Can, according to the requirement of reliability, carry out drawing group to storage engines when structure is disposed.Consider read-write synchronization mechanism, each storage engines group remains on 2-4 storage engines, and namely 2-4 storage engines shares a Switching Module.Form a storage engines group managed together one group of disk by 2 to 4 storage engines, each storage engines group ALARA Principle disk number is more than 90.
Realize exchanging visits by Switching Module between storage engines, adopt the advantage of this switch type framework to be reduction of wiring difficulty and add the reliability of storage system by the fault tolerant mechanism of interconnection engine.Each storage engines can as the redundant storage engine of other storage engines, and when a storage engines goes wrong, other storage engines can be taken over job, and then makes storage organization still normally can provide service.And all storage engines can walk abreast to use and increase communication bandwidth.
Be illustrated further by an application example of the present invention below.
Be illustrated in figure 3 the example of the storage engines of the embodiment of the present invention, in this figure, small-sized GBIC (GBIC)---SFP being service interface, being generally connected with front-end server, for reading and writing front-end server; MiniSAS is disk interconnect interface, for reading and writing disk; RJ45 is management interface; Dedicated network is used for realizing storage engines interconnection; The IOP user on the left side is responsible for IO process, and read-write front-end server and read-write disk, remaining work has been come by the IOP on the right.Except the module introduced in the embodiment of the present invention, in figure, other module and function belong to prior art, do not repeat them here.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as ROM (read-only memory), disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to claim of the present invention.
Claims (8)
1. a storage engines device, it is characterized in that, comprise the first I/O processor IOP and the second I/O processor IOP, disk interconnect interface, storage engines interconnect interface and management interface, a described IOP is connected with at least one disk by described disk interconnect interface and Switching Module, described 2nd IOP is connected with described Switching Module, wherein:
Described storage engines interconnect interface is arranged to: be connected with other storage engines by Switching Module;
Described management interface is arranged to: be connected with external management module by this storage engines;
A described IOP is arranged to: read and write server by service interface; Disk described at least one is read and write by described disk interconnect interface and described Switching Module;
Described 2nd IOP is arranged to: store the RAID metadata all disks of all storage engines sharing described Switching Module being done to RAID formation, and receive the instruction of described external management module, upgrade RAID metadata; Store the mirror image of all disks of all storage engines interconnected with this storage engines, and running status and the loading condition of the storage engines at its place is reported to described external management module, according to the instruction of taking over job that described external management module issues, the disk mirroring utilizing it to store takes over the work of corresponding storage engines; When the storage engines at described 2nd IOP place starts, stochastic generation storage engines ID identifies and preserves this ID and identifies; When receive that described external management module sends comprise the read-exclusive write command of disc information that storage engines ID identifies and will read and write after, judge whether consistent the storage engines ID mark comprised in this read-exclusive write command identifies with the storage engines ID of self, if consistent, then perform this exclusive read-write to corresponding disk.
2. storage engines device as claimed in claim 1, it is characterized in that, described RAID metadata comprises disk, stripe information, RAID state and the copy information that corresponding RAID comprises.
3. a storage organization device, is characterized in that, comprising: multiple storage engines group, and at least two storage engines as claimed in claim 1 or 2 sharing a Switching Module form a storage engines group, and this storage organization device also comprises administration module, wherein:
Described Switching Module is arranged to: realize the exchanges data shared between the storage engines of this Switching Module;
Described administration module is arranged to: disks all in control store engine group is at a time by the exclusive read-write of a storage engines; According to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group; By the deposit position of the storage condition adjustment data of storage engines all in storage engines group; The running status that reception storage engines reports and loading condition, after storage engines a certain in storage engines group lost efficacy, the running status reported according to storage engines and loading condition determine the storage engines of taking over job, and send the instruction of taking over job to corresponding storage engines; When the RAID of storage engines a certain in storage engines group upgrades, notify that in this storage engines group, other storage engines upgrade corresponding RAID metadata.
4. storage organization device as claimed in claim 3, is characterized in that, disks all in control store engine group is at a time by the exclusive read-write of a storage engines:
Select at a time to carry out the exclusive storage engines read and write to a certain disk in all disks corresponding to this storage engines group from storage engines group, and send read-exclusive write command to this storage engines, comprise the disc information that this storage engines ID identifies and will read and write in described read-exclusive write command.
5. storage organization device as claimed in claim 3, is characterized in that, described administration module is arranged in such a way according to the storage engines of the loading condition adjustment supervisor read-write of storage engines all in storage engines group:
If the current storage engines reading and writing a certain disk has new read-write task in this storage engines group, and during available free in this storage engines group storage engines, replace the storage engines having new read-write task to perform current read-write task by the storage engines of this free time.
6. storage organization device as claimed in claim 3, is characterized in that, described administration module is arranged in such a way by the deposit position of the storage condition adjustment data of storage engines all in storage engines group:
According to the deposit position of the distribution situation dynamic adjusting data of all storage engines in read-write focus, this storage engines group.
7. storage organization device as claimed in claim 3, is characterized in that, the storage engines for the storage engines of taking over job and inefficacy is in same storage engines group.
8. storage organization device as claimed in claim 3, it is characterized in that, each storage engines in a storage engines group is connected with at least one disk, and all disks be connected with all storage engines in a storage engines group leave in disk chassis.
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| CN105867842A (en) * | 2016-03-23 | 2016-08-17 | 天津书生云科技有限公司 | Access control method and apparatus for storage system |
| CN106919338B (en) * | 2015-12-24 | 2019-09-03 | 中国移动通信集团公司 | A kind of Flash storage access processing method and system suitable for software definition storage |
| CN107622600B (en) * | 2017-09-21 | 2020-08-18 | 深圳怡化电脑股份有限公司 | Image mirror image data generation method and device and automatic teller machine |
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| CN101452373A (en) * | 2007-12-20 | 2009-06-10 | 普安科技股份有限公司 | I/o processor |
| CN102279713A (en) * | 2011-08-24 | 2011-12-14 | 浪潮电子信息产业股份有限公司 | Method for logically controlling partitions of physical multi-partition computer architecture |
| CN102521209A (en) * | 2011-12-12 | 2012-06-27 | 浪潮电子信息产业股份有限公司 | Parallel multiprocessor computer design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101452373A (en) * | 2007-12-20 | 2009-06-10 | 普安科技股份有限公司 | I/o processor |
| CN102279713A (en) * | 2011-08-24 | 2011-12-14 | 浪潮电子信息产业股份有限公司 | Method for logically controlling partitions of physical multi-partition computer architecture |
| CN102521209A (en) * | 2011-12-12 | 2012-06-27 | 浪潮电子信息产业股份有限公司 | Parallel multiprocessor computer design method |
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