CN101470735B - Virtual file management system and its system configuration establishing and file access method - Google Patents
Virtual file management system and its system configuration establishing and file access method Download PDFInfo
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Abstract
A virtual file management system comprises a file request management unit, an information memory bank, a file designation space management unit and a file access management unit, wherein the file request management unit is used to receive file access requests sent by a user end, and to return the processing results of the file access requests. The information memory bank is used to store the data structure of the virtual file management system, the file designation space management unit is used to inquire the address and path content of files in the information memory bank according to the file access requests, and the access management unit is used to access files according to the address and the path content of the files.
Description
Technical field
The present invention is relevant for a kind of virtual file control system, and particularly sets up and file access method relevant for a kind of virtual file control system and system configuration thereof.
Background technology
Because the progress of numeral science and technology, human life type little by little are transformed into digitizing life type, therefore, various significant datas and information are arranged in daily life, also change in large quantities with digitized forms and carry out data storage.Along with world-wide web popularize and flourish, the digital information that everyone had is index especially grows up, and makes the space requirement of digital memeory device also present significantly and grows up.
Under the progress of digital storage technique, the memory capacity of memory storage is increasing, makes more user's custom that the numerical data that it had is all left on the memory storage.But, the increase of storage device capacity, the relevant application of problem, especially multimedia that does not solve memory space requirements, can be subject to single computer equipment the memory storage number that can hold, the memory capacity that makes computer apparatus to dispose has maximum upper limit.In addition, the user is except paying the extra mental and physical efforts at the storage space that expands computer apparatus, and the expansion of storage space also brings the user indirectly in management and the spinoff of using.That is to say that the user must carry out the management again and the distribution of deposit position to original file data, to make full use of the storage space of new expansion.Thus, will bring inconvenience on another kind of the use for the user.
In recent years, as the network store system that storage space expands, be subjected to many users' favor with network gradually.The user can on the memory device on the network, expand storage space to simplify with file data storing by the mode of network browsing and access.And, by the mode of network access, both can cross over the restriction that single computer equipment maximum can connect memory storage, reach the purpose of unconfined expansion storage space, can easily reach the benefit of the data sharing of many people or many equipment again by network.But, still can't avoid because the increase of storage space must be redistributed original file data, to reach the problem of better space service efficiency.And this problem can be serious day by day along with the number increase of the network storage equipment.
In addition, because the storage space that network storage device had is independent separately, the user must be respectively to the operation of enterprising line data search of each network storage device and access, and therefore, the increase of the network storage equipment also will bring the inconvenience of user's data search and access.So, how by single data access interface, provide the data on many network storage devices of user's access, alleviate user's burden, be an epochmaking problem in fact.
In order to solve foregoing problems, in United States Patent (USP) notification number US6,775,679 and US6, in 985, the 914 patent cases, provide and utilized the file ways of connecting, the file or the file of different file servers coupled together, to form a bigger meta file system.In order to allow the user operate, similarly be to use the identical file system, so these two pieces of patents must be inserted and be used for handling two file system folder of connection or the program code of file in original file system design.But, if the user does not have above-mentioned file system original program code, can't reach the virtualized effect of file system.In addition, employed file connects and must manually be set up and maintenance in artificial mode by system operator or user in above-mentioned two pieces of patents, so may increase and use and managerial burden.
In addition, in the patent case of United States Patent (USP) notification number US6931410 and patent US6947940, provide and utilized, set up single file designation space with reference to object and with reference to the mode of object record sheet.This is the file system object of a particular design with reference to object, and record is with reference to the title of object and the access index value with reference to the object record sheet, therefore, and the operation that these two pieces of patents must be made amendment to file server when carrying out.On the other hand, must set and safeguard by system operator, can increase managerial burden with reference to object and with reference to the object record sheet.
In addition, above-mentioned two pieces of patents must be on the use side computer installation agent program and the setting work of being correlated with, this Agent is used for reading that file server responds with reference to article information and to carry out necessary query manipulation with reference to the object record sheet, therefore, will cause extra burden to the user.In addition, owing to need by the Agent on the use side computer, the constantly operation of carry again, with the file on the access different server, so, the burden in the time of also can increasing System Operation.
Summary of the invention
The invention provides a kind of virtual file control system and system configuration thereof sets up and file access method, restriction that by this can spanning network memory storage scope, and allow the file dispersion of identical file folder to store on many memory storages, to reach the service efficiency that promotes storage space.
The present invention proposes a kind of virtual file control system, and it comprises file request administrative unit, information repository, file designation space management unit and file access administrative unit.The file request administrative unit is in order to the reception file access request that use side sent, and passback file access processing of request result.Information repository is in order to deposit a data structure of virtual file control system.File designation space management unit is in order to foundation file access request, and to the address and the path content of information repository inquiry file.The file access administrative unit is carried out the operation of file access in order to the address and the path content of foundation file.Wherein data structure comprises the file designation space list, and this file designation space list comprises identifier, title, data type, server identification number, file content and file system path.
The present invention proposes a kind of system configuration method for building up, is applicable to the virtual file control system.And this system configuration method for building up comprises the following steps: to receive joining request of a file server.Check whether the virtual file control system has server.If check out when the virtual file control system does not have server, then set up a server list, the superiors' Folder List and a file designation space list, wherein file designation space list comprises identifier, title, data type, server identification number, file content and file system path.File server is added in the virtual file control system.Check in the file server whether a file data is arranged.If check when finding that server has file data, then file data added in the file designation space list.
The present invention proposes a kind of file access method, is applicable to the virtual file control system, and this virtual file control system has the file designation space list.And this file access method comprises the following steps: to receive the access request of a file.In the file designation space list, check whether file exists, wherein file designation space list comprises identifier, title, data type, server identification number, file content and file system path.If when file exists, obtain the stored position of file.Judge whether above-mentioned position is positioned on the file server of file access request.If above-mentioned position is not positioned on the above-mentioned file server,, sets up a file with reference to message, and be back to use side then according to the stored position of file.
The present invention is according to the position of each file, set up a data structure and deposit in the information repository, by this, the file in the network storage device is combined, and crossed over the restriction of network storage device scope, allow the file of identical file folder to disperse to store on many memory storages.Thus, the unified configuration and management of storage space be can reach,, and the operation of user's accessing file and the burden that alleviates file server simplified with lifting storage space service efficiency.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail as follows.
Description of drawings
Fig. 1 is expressed as the virtual file control system architecture diagram in the single file designation of having of one embodiment of the invention space.
Fig. 2 is expressed as a kind of enforcement example of the virtual file control system in the single file designation of having of embodiment of the invention space.
Fig. 3 is expressed as the synoptic diagram of the virtual file control system of one embodiment of the invention.
Fig. 4 A is expressed as the synoptic diagram of the server list of one embodiment of the invention.
Fig. 4 B is expressed as the synoptic diagram of the superiors' Folder List of one embodiment of the invention.
Fig. 4 C is expressed as the synoptic diagram of the file designation space list of one embodiment of the invention.
Fig. 5 A and Fig. 5 B are expressed as the system configuration method for building up process flow diagram of the embodiment of the invention.
Fig. 5 C is the detail flowchart of the step S556 of Fig. 5 B.
Fig. 6 A is expressed as the process flow diagram of the file access method of one embodiment of the invention.
Fig. 6 B is expressed as the process flow diagram of the file access method of another embodiment of the present invention.
Fig. 7 is expressed as the detail flowchart of the step S604 of Fig. 6 A.
The main element symbol description
100,300: the virtual file control system
110: communication network
FS1-FS3: file server
120-121: use side
130-132: memory storage
310: the file request administrative unit
320: information repository
330: file designation space management unit
340: the file access administrative unit
400: server list
430: the superiors' Folder List
460: the file designation space list
Home, video, liuken, zhuang, drama, fiction: file
File1, file2, movie1, movie2, csi, lost: file
S502-S512: each step of the system configuration method for building up of one embodiment of the invention
S552-S556: each step of the system configuration method for building up of another embodiment of the present invention
S582-S592: each step among the step S556
S602-S618: each step of the file access method of one embodiment of the invention
S652-S680: each step of the file access method of another embodiment of the present invention
S702-S710: each step among the step S604
Embodiment
Fig. 1 is expressed as the virtual file control system architecture diagram in the single file designation of having of one embodiment of the invention space.Please refer to Fig. 1, virtual file control system 100 comprises communication network 110, file server FS1-FS3, use side (client) 120-121 and memory storage 130-132.Wherein, memory storage 130-132 is disposed at file server FS1-FS3 separately.And communication network 110 can be wired and wireless network media.File server FS1-FS3 is in order to receive and to handle the operation requirement of being sent by use side 120-121.Memory storage 130-132 is then in order to store file data.
In integrated operation, after file server FS1-FS3 all connects communication network 110, make use side 120-121 can pass through communication network 110, operation and management are connected the memory storage 130-132 of file server FS1-FS3, so that the data of being stored on the accessing storage devices 130-132.
Fig. 2 is expressed as a kind of enforcement example of the virtual file control system 100 in the single file designation of having of embodiment of the invention space.Please refer to Fig. 2, what present embodiment was different with the traditional file server is that the storage space that virtual file control system 100 is provided and file and file structure are made up of the file and the file structure of many entity file servers.Therefore, by finding out among Fig. 2, the virtual file control system 100 of present embodiment is made of jointly file server FS1-FS3.
Therefore, for use side 120-121, no matter be to be connected to file server FS1, FS2 or FS3 by communication network 110, the file home of the superiors and the video that can access be provided to virtual file control system 100.That is to say that though file home and video leave in respectively among file server FS1 and the FS2, the user it seems that in use side file home and video but similarly are on same server.So, can reach the effect of logical (transparent).
Please continue with reference to Fig. 2, file liuken and zhuang are still arranged among the file home, file drama and fiction are then arranged in file video.In addition, file f ile1 and file2 all are stored among the file liuken, and all are positioned at the memory storage of file server FS1.Though and file movie1 and movie2 are stored among the file zhuang, but different with file liuken is, file movie1 and movie2 leave file server FS1 and file server FS2 separately in, rather than only leave on the same file server.In addition, said circumstances appears at file drama and fiction and file csi and lost equally.That is to say that a plurality of files or a plurality of file in the identical file folder can be stored in respectively in the different file servers, reaching the effect of memory allocation effectively, and it is overweight to reduce the load of single file server.
Fig. 3 is expressed as the synoptic diagram of the virtual file control system of one embodiment of the invention.Please refer to Fig. 3, virtual file control system 300 comprises file request administrative unit 310, information repository 320, file designation space management unit 330 and file access administrative unit 340.File request administrative unit 310 is in order to the reception file access request that use side sent, and passback file access processing of request result.Information repository 320 is in order to deposit the data structure of virtual file control system 300.File designation space management unit 330 is in order to foundation file access request, and to the address and the path content of information repository 320 inquiry files.File access administrative unit 340 is carried out the operation of file access in order to the address and the path content of foundation file.
In integrated operation, file request administrative unit 310 can receive the file access request that use side sent, and according to the use side authority of the request of sending and the access right of file, whether decision allows this request.If do not meet access right, then produce an error message and be back to use side, to inform the user.
If access right allows, then this request is passed to file designation space management unit 330, and file designation space management unit 330 can be in information repository 320, the path content of the server address at the actual place of inquiry file and file.Afterwards, file access administrative unit 340 just according to the address and the path content of above-mentioned file, is carried out accessing operation.At last, file request administrative unit 310 can return execution result to the use side that sends this request by communication network.
In the present embodiment, the data structure of depositing in the information repository 320 comprises server list 400, the superiors' Folder List 430 and file designation space list 460, and respectively shown in Fig. 4 A, 4B and 4C.Please earlier with reference to Fig. 4 A, server list 400 comprises server identification number (Server ID) and server address (Server Address), just write down in the virtual file control system 300, the information of file server, that is file server FS1 and address 192.168.1.1 thereof, file server FS2 and address 192.168 thereof.1.2, file server FS3 and address 192.168.1.3 thereof.
Please refer to Fig. 4 B, the superiors' Folder List 430 comprises Folder Name (Folder Name) and file identifier (Folder ID), just write down in the virtual file control system 300, the content of the superiors' file, that is file home and identifier 0, file video and identifier 100 thereof.
Please refer to Fig. 4 C, file designation space list 460 comprises identifier (ID), title (Name), data type (Data Type), server identification number (Server ID), file content (Folder Content) and file system path (File System Path), just writing down in the virtual file control system 300 all files and the information of file.And in the file designation space list 460, the symbol D in the data type field represents that these data are file (folder), and symbol F represents that these data are file (file).
In addition, still a different data in symbolic representation this document folder in the file content field, and be with above-mentioned data identification number foundation as record, for instance, the file content field at file home occurs 1,2, just represent that also file home still has 2 data, and find file liuken and zhuang, that is in the file home file liuken and zhuang are arranged according to identifier 1,2.
Below, will the flow process of the system configuration foundation of virtual file control system 300 be described.Fig. 5 A and Fig. 5 B are expressed as the system configuration method for building up process flow diagram of the embodiment of the invention.Please, at first, receive join request (the step S502) of file server earlier with reference to Fig. 3 and Fig. 5 A.For example receive the command request of the adding file server of assigning by use side for virtual file control system 300.
Afterwards, check whether virtual file control system 300 has server (step S504).If when checking out virtual file control system 300 without any server, the file server that added of expression is first station server in the virtual file control system 300 for this reason, then set up server list, the superiors' Folder List and file designation space list (step S506), shown in Fig. 4 A-Fig. 4 C.Finish and deposit to information repository 320 when above-mentioned tabulation foundation, file server is added (step S508) in the virtual file control system 300.
If check out when virtual file control system 300 has server, then directly enter step S508, file server is added in the virtual file control system 300.Then, check in the file server that is added whether the file data of existence (step S510) is arranged.If check when finding that server has file data, then file data added (step S512) in the file designation space list.Anti-, if check when finding that server there is no file data, then directly new file server information is added to system configuration after, promptly finish the operation of whole newly-increased file server.
Referring again to Fig. 5 B,, for example be the command request of assigning by use side that removes file server FS3 if virtual file control system 300 receives the request (step S552) that removes file server.
Then, in step S554, with file server FS3 by removing in the virtual file control system 300.Afterwards, the file designation space list is upgraded (step S556), to finish the operation that whole file server removes.In addition, except removing file server FS3, also must will deposit in the file among the file server FS3, by removing in the file designation space list, to avoid the user to enter in the virtual file control system 300, also can see the file of file server FS3, and produce wrong operation.
Next, how to carry out the flow process that the file designation space list is upgraded with further specifying.Fig. 5 C is the detail flowchart of the step S556 of Fig. 5 B.Please refer to Fig. 5 C, at first, read server list (step S582).For instance, suppose that the request that use side sends is the operation that file server FS3 is removed, at this moment, virtual file control system 300 can read server list 400 (Fig. 4 A) from information repository 320, so that carry out the resurfacing operation of system file NameSpace.
Then, in the file designation space list, read the information (step S584) of file.In the present embodiment, the information that reads file is to inspect the content and the path of each file in regular turn, and once only can read the information of a file, and finds out the actual existing address (step S586) of above-mentioned file.
For instance, suppose that with file movie1 be example, the actual existing address of this file movie1 is: file server FS1, server address is 192.168.1.1, and the path of depositing is/home/zhuang/movie1.
Afterwards, check whether the file server of depositing file is removed (step S588).Be removed if check the outfile server, then with file by removing (step S590) in the file designation space list.For instance, read among Fig. 4 C, during the file fiction of identifier 102, find that this file fiction is former to deposit in before this among the file management system FS3, therefore, must be with file fiction by removing in the file designation space list.Afterwards, virtual file control system 300 can judge that whether deleted file is the last batch of data (step S592) in the file designation space list.Yet file fiction is not the last batch of data in the file designation space list 460, gets back among the step S584, to proceed the operation of file designation spatial update, stops for the last batch of data up to file.For instance, virtual file control system 300 continues to carry out the operation of file polling downwards, checks whether deposit in the file of file server FS3 and the record of file in the file designation space list 460 in addition exactly.Afterwards, in identifier 105 and 106, find that respectively file hulk and sherk deposit among the file server FS3, therefore, also must remove file hulk and sherk.
In addition, behind execution of step S586, be not removed, then directly enter step S592, judge that whether above-mentioned file is the last batch of data in the file designation space list if check the outfile server.By this, can finish the renewal of file designation space list 460 operation.
For instance, if read among Fig. 4 C, during the file movie1 of identification code 5, and this file is to deposit in the file server FS1 that is not removed, and then need not remove file movie1.And file movie1 is not the last batch of data in the file designation space, so the renewal in file designation space operation still can proceed, and stops when the file that reads is the last batch of data.
Fig. 6 A is expressed as the process flow diagram of the file access method of one embodiment of the invention.Present embodiment is applicable to virtual file control system 300.Please refer to Fig. 6 A, at first, receive the access request (step S602) of a file.For example virtual file control system 300 is from the file access request of network reception from use side.
Afterwards, in the file designation space list, check whether file exists (step S604).For example with the content in the file path Query Information thesaurus 320.If file when not existing, then sends an error message to use side (step S606), informing that this file access request of user is wrong, and there is no this file in this virtual file control system 300.
In addition, when existing, then obtain the stored position of file (step S608) as if file.For example by the positional information of taking out the actual place of file in the information repository 320.Then, judge whether the position is positioned on the file server of file access request (step S610).That is to say, suppose that the user is connected in the virtual file control system 300 by file server FS1, and when the required file that carries out access also was positioned on the file server FS1, the position of then representing above-mentioned file was to be positioned on the file server of file access request.And if the position of above-mentioned file is to be positioned on the file server FS2, the position of then representing above-mentioned file is not to be positioned on the file server of file access request
Hold above-mentioned, if find that the position is not positioned on the file server of file access request, then, set up file, and file is back to use side (step S614) with reference to message with reference to message (referral response) (step S612) according to the stored position of file.That is to say, when the above-mentioned file that carries out access, file movie2 for example, be when being positioned at file server FS2, then the file system path of depositing in the file designation space list 460 can be established as file with reference to message, to be back to use side, to allow the user learn that this file is not at file server FS1.
In addition, be positioned on the file server of file access request if find the position, then, carry out the file access operation as described in the step S616, and the result with this accessing operation is back to use side (step S618) again, so that allow the user learn this file access success.
The foregoing description is the treatment scheme with the access request that receives the file that use side was sent.Below, other is lifted an example illustrate by use side and send file access processing of request flow process.Fig. 6 B is expressed as the process flow diagram of the file access method of another embodiment of the present invention.Please refer to Fig. 6 B, at first, in step S652, the user can send a file access request in use side.Afterwards, then carry out step S654-S670, so that carry out the operation of file access, and the step S602-S618 of step S654-S670 and Fig. 6 A is same or similar, so do not repeat them here.Then, in step S672, just behind use side receiving step S658, S666 and S670 one result wherein, check whether access success of file.If check result is a "Yes", that is use side receives the execution result of step S670, and then as described in the step S674, use side can obtain the file access success message.
Change speech, if check result is a "No", that is the received execution result of use side is the execution result of step S658 and S666.So, in step S676, judged whether that file is with reference to message.That is to say that use side can be judged the execution result of step S658 and S666.If judged result is "No", that is use side receives the execution result of step S658, and then as described in the step S678, use side can obtain the error message of file access.
Change speech, if judged result is a "Yes", that is use side receives the execution result of step S666, then carries out among the step S680, and use side can produce the access request of a file again.That is to say, with reference to the information in the message, send a correct file access request, so that file is carried out the operation of access according to file.
Afterwards, return step S652, the access request of this file is sent once more, to reach the request of correctly file being carried out access.For instance, suppose that the user is connected to file server FS1 by communication network, at this moment, if the request of being sent by use side is: when file movie2 is carried out the operation of access, then, can check that outfile movie2 deposits in the memory storage of file server FS1 in proceeding to step S662.Therefore, virtual file control system 300 can produce file movie2 and deposit in file server FS2, and the file of path/home/zhuang/movie of file movie2 with reference to message to use side, so that allow the user resend the request of accessing file movie2, and be connected among the file server FS2, file movie2 is carried out the operation of access.
Next, will be discussed in the file designation space list 460, check the flow process whether file exists.Fig. 7 is expressed as the detail flowchart of the step S604 of Fig. 6 A.Please refer to Fig. 7, at first, the path of the file of inquiry file (step S702).For example virtual file control system 300 can inquire about to information repository 320 by file designation space management unit 330, just enter inquire above-mentioned file in the file designation space list 460 deposit path and address.
Afterwards, checking whether the path of file exists (step S704), for example is that above-mentioned file path is confirmed, so that learn that this file is whether in file designation space list 460.Do not exist if check the path of outfile folder, then send the non-existent message of a file (step S706), just represent that the file of above-mentioned file access request does not exist yet.
In addition, exist, then take out the file content (step S708) in the file if check the path of outfile folder.Then, check whether above-mentioned file is undermost file (step S710).If when check finding that file is undermost file, then enter step S608, to obtain the stored position of above-mentioned file as Fig. 6 A.
If check and find that file is not undermost file, then get back to step S702, with the operation of proceeding to inquire about.
For instance, the employed inquiry mode of present embodiment is to carry out in the mode of hierarchy type, that is to say, when file access request that use side sent is accessing file movie1, the folder path of the first inquiry file movie1 of virtual file control system 300 meetings also is/home/zhuang/movie1.But, virtual file control system 300 can confirm earlier that whether file home exists, if there is the content that then obtains file home, also is file zhuang.Then, judge again whether file home is undermost file, hence one can see that, and file home is not undermost file, therefore the operation that can inquire about file zhuang again, up to finding file movie1 to stop, the file movie1 that is sent the file access request with the expression use side exists really.
In sum, the present invention carries out the unified configuration and management of storage space, to promote the storage space service efficiency effectively by setting up the data structure that server list, the superiors' Folder List and file designation space list are formed.In addition, the present invention allows the user by single access interface, and the data on many network storage devices of access so, can reach the effect of simplifying the operation of user's accessing file.In addition, the present invention can directly expand its storage space under the state that does not need to shut down; and also the file access load can be dispersed on many different servers; avoid the load of single file server overweight, therefore, can alleviate the management document load of server effectively.
Though the present invention with preferred embodiment openly as above, so it is not in order to limit the present invention.Those of ordinary skill under any in the technical field under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes and modification.Therefore, protection scope of the present invention is as the criterion with the scope of the claim that proposed.
Claims (16)
1. virtual file control system comprises:
One file request administrative unit, in order to receiving the file access request that a use side is sent, and the result of passback this document access request;
One information repository is in order to deposit a data structure of this virtual file control system;
One file designation space management unit, in order to foundation this document access request, and to the address and the path content of this information stores library inquiry this document; And
One file access administrative unit in order to the address and the path content of foundation this document, is carried out the operation of file access,
Wherein this data structure comprises a file designation space list, and this document Namespace lists comprises an identifier, a title, a data type, a server identification number, a file content and a file system path.
2. virtual file control as claimed in claim 1 system, wherein this data structure also comprises a server list and the superiors' Folder List.
3. virtual file control as claimed in claim 2 system, wherein this document server list comprises a server identification number and a server address.
4. virtual file control as claimed in claim 2 system, wherein this superiors' Folder List comprises the title and a file identifier of a file.
5. a system configuration method for building up be applicable to a virtual file control system, and this system configuration method for building up comprises the following steps:
Receive joining request of a file server;
Check whether this virtual file control system has server;
If check out when this virtual file control system does not have server, then set up a server list, the superiors' Folder List and a file designation space list, wherein this document Namespace lists comprises an identifier, a title, a data type, a server identification number, a file content and a file system path;
This document server is added in this virtual file control system;
Check in this document server whether a file data is arranged; And
If check when finding that this server has this document data, then this document data added in this document Namespace lists.
6. system configuration method for building up as claimed in claim 5, wherein this server list comprises a server identification number and a server address; This superiors' Folder List comprises the title of a file and the identifier of a file.
7. system configuration method for building up as claimed in claim 5 also comprises the following steps:
Reception removes the request of this document server;
With this document server by removing in this virtual file control system; And
This document Namespace lists is upgraded.
8. system configuration method for building up as claimed in claim 7 wherein comprises in that this document Namespace lists is carried out updating steps:
Read this server list;
In this document Namespace lists, read the information of a file;
Find out the actual address of depositing of this document;
Whether the file server that this document is deposited in inspection is removed;
If check out that this document server is removed, then with this document by removing in this document Namespace lists;
Judge whether this document is the last batch of data of this document Namespace lists.
If judged result is then got back in this document Namespace lists for not, read the step of the information of a file, finish renewal up to this document NameSpace and finish.
9. a file access method is applicable to a virtual file control system, and this virtual file control system has a file designation space list, and this document access method comprises the following steps:
Receive the access request of a file;
In this document Namespace lists, check whether this document exists, wherein this document Namespace lists comprises an identifier, a title, a data type, a server identification number, a file content and a file system path;
If when this document exists, obtain the stored position of this document;
Judge whether this position is positioned on the file server of this document access request;
If this position is not positioned on this document server, then, sets up a file, and this document is back to use side with reference to message with reference to message according to existing this position of this document.
10. file access method as claimed in claim 9, wherein checking that the step whether this document exists also comprises:
If when this document does not exist, then send an error message to this use side.
11. file access method as claimed in claim 9 is wherein judging that the step whether this position is positioned on this document server of this document access request also comprises:
If this position is positioned on this document server, then carries out an accessing operation of this document, and the result of this accessing operation is back to this use side.
12. file access method as claimed in claim 9 also comprises:
Send this document access request by a use side.
13. file access method as claimed in claim 12 wherein after this document is back to the step of this use side with reference to message, also comprises:
Again produce a file access request, and get back to the step of sending this document access request by this use side.
14. file access method as claimed in claim 9 wherein in this document Namespace lists, checks that the step whether this document exists also comprises:
The path of one file of inquiry this document;
Whether the path of checking this document folder exists; And
Exist if check out the path of this document folder, then take out the file content in this document folder.
15. file access method as claimed in claim 14, wherein the step that whether exists in the path of checking this document folder also comprises:
Do not exist if check out the path of this document folder, then send the non-existent message of a file.
16. file access method as claimed in claim 14, wherein the step of the file content in taking out this document folder comprises:
Check whether this document folder is undermost file;
If when check finding this document folder, then enter the step that obtains the stored position of this document for undermost file; And
If check and find that this document folder is not undermost file, then get back in the step in the path of this document folder of inquiring about this document.
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| CN2007103055595A CN101470735B (en) | 2007-12-27 | 2007-12-27 | Virtual file management system and its system configuration establishing and file access method |
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| WO2012070930A1 (en) * | 2010-11-24 | 2012-05-31 | Greenflower Intercode Holding B.V. | User -friendly method and system for compiling a unique sample code for a digital sample with the help of a user - interface |
| US20130013888A1 (en) * | 2011-07-06 | 2013-01-10 | Futurewei Technologies, Inc. | Method and Appartus For Index-Based Virtual Addressing |
| CN105701152A (en) * | 2015-12-29 | 2016-06-22 | 浪潮(北京)电子信息产业有限公司 | File writing method and apparatus, and file reading method and apparatus |
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| CN101079896A (en) * | 2007-06-22 | 2007-11-28 | 西安交通大学 | A multi-availability mechanism coexistence framework of concurrent storage system |
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| US5946685A (en) * | 1997-06-27 | 1999-08-31 | Sun Microsystems, Inc. | Global mount mechanism used in maintaining a global name space utilizing a distributed locking mechanism |
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