CN104050248A - File storage system and storage method - Google Patents
File storage system and storage method Download PDFInfo
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- CN104050248A CN104050248A CN201410247433.7A CN201410247433A CN104050248A CN 104050248 A CN104050248 A CN 104050248A CN 201410247433 A CN201410247433 A CN 201410247433A CN 104050248 A CN104050248 A CN 104050248A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/13—File access structures, e.g. distributed indices
Abstract
The invention provides a file storage system. The file storage system comprises storage equipment which is used for storing file data, a file system data base which is used for storing a storage path of the file data, and ensuring the consistency of file metadata, a file server which is used for uniformly managing the storage equipment and the file system data base, obtaining the file data from the storage equipment according to the path appointed by the file system data base and feeding information back to a client end, and an operation system which is used for controlling a program to operate and providing an interactive operation interface for a user. According to the file storage system, the management is simplified, the chaos is avoided, the storage space is effectively utilized, the cost is reduced, and when the client end is subjected to capacity expansion, the client end cannot sense the capacity expansion.
Description
Technical field
The present invention relates to memory technology, be specifically related to a kind of document storage system and file memory method.
Background technology
" media asset " refers to the data that exist with business datum forms such as video and audio, picture, multimedia, words." media asset " is important intangible asset, and through accumulation for many years, the contents such as these video and audios, word and picture, all have high value.The function of " media asset " comprises and gathering and storage at present, automated cataloging, browse with retrieve, download, edit, issue etc." media asset " is to manage by media asset management system,, the form in usage data storehouse is set up the satellite informations such as cataloguing index, related data, brief introduction, authority, make it to become and can be repeated the resource effectively utilized, can or sell for again issuing, as the new program of material-making.
As the storage system of media asset management system important component part, it is for the storage of " media asset " data.In the time that media asset management system is moved, client is passed through network accessed storage system.Common network structure has single network mode and two net pattern.
For two net patterns, as shown in Figure 1, client 11 is networked by optical networking and Ethernet and SAN equipment 12, and MDS metadata management server 13 and ADMINISTRATION SUBSYSTEM 14 are for managing media asset management system.This pair of net pattern need to be installed polylith network interface card (Ethernet card and HBA sonet card), also needs to configure optical fiber switch, network design complexity, and the cost of networking is higher.
For single network mode, as shown in Figure 2, client 21 and SAN equipment 22 are networked by Ethernet, and MDS metadata management server 23 and ADMINISTRATION SUBSYSTEM 24 are for managing media asset management system.Although single network mode has been simplified network structure, the same with two net patterns, client need to be installed special client software, interoperability difficulty between the software that different vendor provides.
In addition, person skilled also proposes to utilize NAS (Network Attached Storage: network attached storage) equipment to store, and as shown in Figure 3, client 31 and SAN equipment 32 are networked by Ethernet.Although but this storage mode network organizing is simple, construction cost is low, client also just can be worked without special software is installed.But owing to there is no unified metadata management, easily cause the confusion of data, file management, the data redundancy between nas server increases, waste of storage space, every NAS equipment all needs to manage respectively, wastes time and energy and easily makes mistakes, and upgrade expanding need to be notified client.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of document storage system and storage means, it can streamlining management, avoids confusion, and can effectively utilize storage space, reduces costs, and client can perception in the time of document storage system dilatation.
The technical scheme adopting solving the problems of the technologies described above is to provide a kind of document storage system, comprising:
Memory device, for store file data;
File system database, for storing the store path of described file data, and ensures the consistance of file metadata;
File server, for memory device described in unified management and described file system database, and the path of specifying according to described file system database obtains described file data and provides feedback information to client from described memory device;
Operating system, for control program operation, and provides interactive operation interface for user.
Wherein, described file server comprises:
File system interface, for the communication between described client and document storage system;
Unified document management module, memory device and described file system database described in unified management, and the path of specifying according to described file system database obtains described file data from described memory device.
Wherein, described file system interface is supported CIFS, FTP and http protocol.
Wherein, described unified document management module comprises:
File metadata administrative unit, for spanned file metadata, and safeguards described file metadata;
File data I/O unit, accesses described memory device to obtain described file data for the described file metadata providing according to described file metadata administrative unit, and described file data is offered to described client by described operating system.
Wherein, described file metadata comprises the store path of file inode, file size, access and modification time and file data.
Wherein, between file data I/O unit and described operating system, pass through file interface and/or blocks of data interface communication.
Wherein, described memory device is the one in NAS equipment, SNA equipment and iscsi device, or plurality of devices is mixed takes, and described file server and described memory device pass through optical networking and/or ethernet communication.
Wherein, comprise many described file servers, many described file server parallel runnings, and by file system database described in share and access;
Load balancing module, for the workload of many described file servers of equilibrium.
The present invention also provides a kind of file memory method, and it is based on document storage system, and described document storage system comprises: memory device, for store file data; File system database, for storing the store path of described file data, and ensures the consistance of file metadata; File server, for memory device described in unified management and described file system database, and the path of specifying according to described file system database obtains described file data and provides feedback information to client from described memory device; Operating system, for control program operation, and provides interactive operation interface for user; Comprise the following steps:
Client proposes request of access to described operating system;
Described file server obtains the store path of described file data from described file system database according to the request of access of described operating system;
Described file server accesses according to described store path that described memory device obtains described file data and to file data described in described operating system carry;
Described file data is sent client by described operating system.
Wherein, client comprises read request and write request to described operating system proposition request of access.
Wherein, described file server passes through file data I/O unit to file data described in described operating system carry.
Wherein, described file data I/O unit is directly by operating system described in described file data carry; Or, encapsulate file data described in backward described operating system carry by blocks of data.
Wherein, comprise the multiple described file server of parallel running, described multiple file servers are by the load balancing module amount of sharing out the work.
The present invention has following beneficial effect:
Document storage system provided by the invention is stored in file data in memory device, the store path of file system database store file data, and ensure the consistance of file metadata, in the time that client proposes request of access, file server obtains the store path of file data from file system database, and is stored in the file data in memory device, i.e. file system database unified management memory device according to this store path access, both simplify management, avoided the confusion of management; Avoid again data redundancy, effectively utilized storage space.Client is DASD not, but indirectly obtains visit data by file server, and therefore, client can perception storage backstage, can obstructedly know client and to any upgrade expanding of document storage system; And client can be used multiple standards protocol access document storage system, thus the usable range of having extended document storage system.In addition, the networking of client and file server is no longer subject to the impact of memory device, has reduced networking cost.On the other hand, the framework of memory device is not subject to the impact of client, can merge multiple storage architecture, compatible polytype memory device, and meet the application demand of various document storage systems.
As a preferred embodiment of the present invention, document storage system comprises multiple file servers, multiple file server parallel runnings, and document storage system can be with the dilatation of improving the standard of performance, and client can perception.
Brief description of the drawings
Fig. 1 is the structural drawing of two net patterns of existing media asset management system employing;
Fig. 2 is the structural drawing of the single network mode of existing media asset management system employing;
Fig. 3 is the NAS equipment that existing media asset management system adopts;
Fig. 4 is the theory diagram of embodiment of the present invention document storage system and client;
Fig. 5 is the theory diagram of embodiment of the present invention file server;
Fig. 6 is the theory diagram that the embodiment of the present invention is unified document management module;
Fig. 7 is the process flow diagram of embodiment of the present invention file memory method.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with accompanying drawing, document storage system provided by the invention and file memory method are described in detail.
As shown in Figure 4, the present embodiment document storage system comprises memory device 41, file system database 42, file server 43 and operating system (not shown).Wherein, memory device 41 is for store file data; File system database 42 is for the store path of store file data, and ensures the consistance of file metadata; File server 43 is for unified management memory device and file system database, and the path of specifying according to file system database obtains file data and provides feedback information to client 40 from memory device; Operating system, for control program operation, and provides interactive operation interface for user.
Memory device 41 can adopt a kind of equipment in NAS equipment, SNA equipment and iscsi device or plurality of devices is mixed takes.In order to expand the storage space of document storage system, document storage system can arrange multiple memory devices 41 conventionally, and file server 43 is found required file data and need to be taken a long time.The present embodiment comes the concrete memory location of log file data by file system database 42, can reduce the time of the inquiry file data of file server 43, thereby improves the operational efficiency of file server 43.File server 43 can be connected by optical networking and/or Ethernet with memory device 41.
The document storage system of the present embodiment is provided with three file servers 43, and these three file server 43 parallel runnings, by share and access file system database 42.As shown in Figure 5, each file server 43 comprises file system interface 51 and unified document management module 52, and file system interface 51 is for the communication between client and document storage system.Unified document management module 52 is for unified management memory device 41 and file system database 42, and the path of specifying according to file system database 42 obtains file data from memory device 41.File system interface is supported CIFS agreement, File Transfer Protocol and http protocol, and CIFS agreement, File Transfer Protocol and http protocol move under operating system 45 environment.
As shown in Figure 6, unified document management module 52 comprises file metadata administrative unit 61 and file data I/O unit 62, and file metadata administrative unit 61 is for spanned file metadata and maintenance documentation metadata.In other words, the access path of file metadata administrative unit 61 configure storage devices 41, so that the follow-up operation to memory device in file data I/O unit 62.The file metadata accessing storage device 41 of file data I/O unit 62 for providing according to file metadata administrative unit 61, to obtain file data, and offers client by file data by operating system 45.File metadata comprises the store path of file inode, file size, access and modification time and file data.
Communication between file data I/O unit 62 and operating system 45 is by file interface and/or blocks of data Interface realization.
In the present embodiment, in order to improve the operational efficiency of many file servers 43, document storage system also comprises load balancing module 44, for the workload of balanced (distribution) many file servers 43.Many file server 43 parallel runnings, document storage system can be with the dilatation of improving the standard of performance, and client can perception.
The document storage system that the present embodiment provides is stored in file data in memory device, the store path of file system database store file data, in the time that client proposes request of access, file server obtains the store path of file data from file system database, and be stored in the file data in memory device according to this store path access, be file system database unified management memory device, both simplified management, avoided the confusion of management; Avoid again data redundancy, effectively utilized storage space.Client is DASD not, but indirectly obtains visit data by file server, and therefore, client can perception storage backstage, can obstructedly know client and to any upgrade expanding of document storage system; And client can be used multiple standards protocol access document storage system, thus the usable range of having extended document storage system.In addition, the networking of client and file server is no longer subject to the impact of memory device, has reduced networking cost.On the other hand, the framework of memory device is not subject to the impact of client, can merge multiple storage architecture, compatible polytype memory device, and meet the application demand of various document storage systems.
The present embodiment also provides a kind of file memory method, the document storage system that the method provides based on the present embodiment, and the concrete structure of document storage system is as detailed above, does not repeat them here.As shown in Figure 7 and Figure 8, file memory method its comprise the following steps:
Step S1, client proposes request of access to operating system.
User proposes request of access by client to operating system 45, and request of access comprises read request, write request or update request.Describe as an example of read request example below.
Step S2, file server obtains the store path of file data from file system database according to the request of access of operating system.
Operating system 45 proposes request of access to file server, the file metadata administrative unit 61 of being located in server obtains metadata according to the request of access of operating system 45 to file system database 42 request of sending, be file metadata administrative unit 61 is sent request from the path of inquiry file data to file system database 42, file system database 42 is by metadata Transmit message metadata management unit 61.
Step S3, file server is according to store path accessing storage device acquisition file data and to operating system carry file data.
Be located at the metadata that the file metadata administrative unit 61 of file server provides according to file system database 42, by file data I/O unit 62 accessing storage devices 41, to obtain file data, file data I/O unit 62 is by file data transmit operation system 45.
Communication modes between file data I/O unit 62 and memory device 41 is relevant with memory device 41.For example, in the time that memory device 41 is SAN equipment or NAS equipment, without carrying out blocks of data encapsulation, directly use file interface; In the time that memory device 41 is the equipment of SCSI type, need to carry out data encapsulation (if oppositely, needing file data to divide block operations).
Step S4, file data is sent client by operating system.
The file data obtaining is sent client by operating system 45.
In the file memory method providing at the present embodiment, client is DASD not, but obtaining file data by file server, client can perception storage backstage, can obstructedly know client and to any upgrade expanding of document storage system; And the networking of client and file server is no longer subject to the impact of memory device, reduce networking cost.On the other hand, the framework of memory device is not subject to the impact of client, can merge multiple storage architecture, compatible polytype memory device, and meet the application demand of various document storage systems.The store path of file data is by file system database unified management, and the store path accessing storage device that file server provides according to file system database, had both simplified management, has avoided the confusion of management; Avoid again data redundancy, effectively utilized storage space.
Be understandable that, above embodiment is only used to principle of the present invention is described and the illustrative embodiments that adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (13)
1. a document storage system, is characterized in that, comprising:
Memory device, for store file data;
File system database, for storing the store path of described file data, and ensures the consistance of file metadata;
File server, for memory device described in unified management and described file system database, and the path of specifying according to described file system database obtains described file data and provides feedback information to client from described memory device;
Operating system, for control program operation, and provides interactive operation interface for user.
2. document storage system according to claim 1, is characterized in that, described file server comprises:
File system interface, for the communication between described client and document storage system;
Unified document management module, memory device and described file system database described in unified management, and the path of specifying according to described file system database obtains described file data from described memory device.
3. document storage system according to claim 2, is characterized in that, described file system interface is supported CIFS, FTP and http protocol.
4. document storage system according to claim 2, is characterized in that, described unified document management module comprises:
File metadata administrative unit, for spanned file metadata, and safeguards described file metadata;
File data I/O unit, accesses described memory device to obtain described file data for the described file metadata providing according to described file metadata administrative unit, and described file data is offered to described client by described operating system.
5. document storage system according to claim 4, is characterized in that, described file metadata comprises the store path of file inode, file size, access and modification time and file data.
6. document storage system according to claim 4, is characterized in that, passes through file interface and/or blocks of data interface communication between file data I/O unit and described operating system.
7. document storage system according to claim 1, it is characterized in that, described memory device is the one in NAS equipment, SNA equipment and iscsi device, or plurality of devices is mixed takes, and described file server and described memory device pass through optical networking and/or ethernet communication.
8. document storage system according to claim 1, is characterized in that, comprises many described file servers, many described file server parallel runnings, and by file system database described in share and access;
Load balancing module, for the workload of many described file servers of equilibrium.
9. a file memory method, it is based on document storage system, and described document storage system comprises: memory device, for store file data; File system database, for storing the store path of described file data, and ensures the consistance of file metadata; File server, for memory device described in unified management and described file system database, and the path of specifying according to described file system database obtains described file data and provides feedback information to client from described memory device; Operating system, for control program operation, and provides interactive operation interface for user;
It is characterized in that, comprise the following steps:
Client proposes request of access to described operating system;
Described file server obtains the store path of described file data from described file system database according to the request of access of described operating system;
Described file server accesses according to described store path that described memory device obtains described file data and to file data described in described operating system carry;
Described file data is sent client by described operating system.
10. file memory method according to claim 9, is characterized in that, client proposes request of access to described operating system and comprises read request and write request.
11. file memory methods according to claim 9, is characterized in that, described file server passes through file data I/O unit to file data described in described operating system carry.
12. file memory methods according to claim 10, is characterized in that, described file data I/O unit is directly by operating system described in described file data carry; Or, encapsulate file data described in backward described operating system carry by blocks of data.
13. file memory methods according to claim 9, is characterized in that, comprise the multiple described file server of parallel running, and described multiple file servers are by the load balancing module amount of sharing out the work.
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Cited By (11)
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---|---|---|---|---|
CN105069012A (en) * | 2015-07-07 | 2015-11-18 | 浪潮(北京)电子信息产业有限公司 | File access method and system |
CN106254544A (en) * | 2016-09-28 | 2016-12-21 | 乐视控股(北京)有限公司 | Data access method and device |
CN106484322A (en) * | 2016-09-12 | 2017-03-08 | 华为技术有限公司 | A kind of method of carry file system, device and equipment |
CN106528739A (en) * | 2016-10-28 | 2017-03-22 | 杭州慕锐科技有限公司 | Method for establishing big data warehouse of digital printing and dyeing image materials |
WO2017067297A1 (en) * | 2015-10-21 | 2017-04-27 | 杭州海康威视数字技术股份有限公司 | Method and device for reading and writing video data in nas device |
CN106844111A (en) * | 2016-12-26 | 2017-06-13 | 创新科存储技术(深圳)有限公司 | The access method of cloud storage NFS |
CN107357524A (en) * | 2017-06-30 | 2017-11-17 | 四川九洲电器集团有限责任公司 | The method of storage file, the method for reading file, electronic equipment |
CN109117156A (en) * | 2018-07-18 | 2019-01-01 | 郑州云海信息技术有限公司 | A kind of upgrade method and system of storage system |
CN109416680A (en) * | 2016-04-26 | 2019-03-01 | 安博科技有限公司 | Hoist cable routing logic and load balancing |
CN110879760A (en) * | 2018-09-05 | 2020-03-13 | 北京鲸鲨软件科技有限公司 | Unified storage system and method and electronic equipment |
CN112380178A (en) * | 2020-11-25 | 2021-02-19 | 北京明略软件系统有限公司 | File storage and management method and system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101370027A (en) * | 2008-07-09 | 2009-02-18 | 中国网通集团宽带业务应用国家工程实验室有限公司 | Network storage system, method and application server |
-
2014
- 2014-06-05 CN CN201410247433.7A patent/CN104050248B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101370027A (en) * | 2008-07-09 | 2009-02-18 | 中国网通集团宽带业务应用国家工程实验室有限公司 | Network storage system, method and application server |
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CN105069012A (en) * | 2015-07-07 | 2015-11-18 | 浪潮(北京)电子信息产业有限公司 | File access method and system |
US10803109B2 (en) | 2015-10-21 | 2020-10-13 | Hangzhou Hikvision Digital Technology Co., Ltd. | Method and device for reading and writing video data in NAS device |
CN106610967B (en) * | 2015-10-21 | 2020-06-12 | 杭州海康威视数字技术股份有限公司 | Method and device for reading and writing video data in NAS (network attached storage) equipment |
WO2017067297A1 (en) * | 2015-10-21 | 2017-04-27 | 杭州海康威视数字技术股份有限公司 | Method and device for reading and writing video data in nas device |
CN106610967A (en) * | 2015-10-21 | 2017-05-03 | 杭州海康威视数字技术股份有限公司 | Method and apparatus for reading and writing video data in NAS device |
CN109416680B (en) * | 2016-04-26 | 2023-02-17 | 安博科技有限公司 | Sling routing logic and load balancing |
CN109416680A (en) * | 2016-04-26 | 2019-03-01 | 安博科技有限公司 | Hoist cable routing logic and load balancing |
WO2018045860A1 (en) * | 2016-09-12 | 2018-03-15 | 华为技术有限公司 | File system mounting method, apparatus and equipment |
CN106484322A (en) * | 2016-09-12 | 2017-03-08 | 华为技术有限公司 | A kind of method of carry file system, device and equipment |
CN106254544A (en) * | 2016-09-28 | 2016-12-21 | 乐视控股(北京)有限公司 | Data access method and device |
CN106528739B (en) * | 2016-10-28 | 2019-07-23 | 杭州米绘科技有限公司 | A kind of method for building up in Digital Dyeing picture material big data warehouse |
CN106528739A (en) * | 2016-10-28 | 2017-03-22 | 杭州慕锐科技有限公司 | Method for establishing big data warehouse of digital printing and dyeing image materials |
CN106844111A (en) * | 2016-12-26 | 2017-06-13 | 创新科存储技术(深圳)有限公司 | The access method of cloud storage NFS |
CN106844111B (en) * | 2016-12-26 | 2021-01-08 | 深圳创新科技术有限公司 | Access method of cloud storage network file system |
CN107357524A (en) * | 2017-06-30 | 2017-11-17 | 四川九洲电器集团有限责任公司 | The method of storage file, the method for reading file, electronic equipment |
CN109117156A (en) * | 2018-07-18 | 2019-01-01 | 郑州云海信息技术有限公司 | A kind of upgrade method and system of storage system |
CN110879760A (en) * | 2018-09-05 | 2020-03-13 | 北京鲸鲨软件科技有限公司 | Unified storage system and method and electronic equipment |
CN110879760B (en) * | 2018-09-05 | 2022-09-02 | 北京鲸鲨软件科技有限公司 | Unified storage system and method and electronic equipment |
CN112380178A (en) * | 2020-11-25 | 2021-02-19 | 北京明略软件系统有限公司 | File storage and management method and system |
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