File system access control apparatus, file system access control method and recording medium including file system access control program

• US 20060190925A1
• Filed: 06/14/2005
• Published: 08/24/2006
• Est. Priority Date: 02/18/2005
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Nakatani, Yoji, Nakano, Takahiro, Ishii, Yohsuke
• Application Number:
  US11/151,261
• Publication Number:
  US 20060190925A1
• Time in Patent Office: Days
• US Class Current: 717/106
• CPC Class Codes: G06F 16/181 providing write once read many [WORM] semantics

Abstract

A file system access control which carries WORM commitment for files in a single transaction is provided. The file system access control apparatus includes command files that support WORM commitment, interprets WORM commitment command which is registered in command files by means of a daemon process module and executes WORM commitment in a file. A plurality of files and those under management of directories are changed of the file access modes to meet WORM. In addition, a system that allows WRITE command for the command files by means of a standard interface of the file system. The results of WORM commitment is registered in the repository files under the system regarding the present invention.

Claims

1. A file system access control apparatus which is implemented by a computer comprising at least a processing means, a memory means to store computer programs and data to be processed therein, a device access means which enables to access an external storage device, a file control means to control a file system and an interface means which supports communication through an internet, wherein said file control means includes command files which are to request processing access command to said file system by means of standard protocols which provide functions used for said access command to said file system,

having a function to start processing access commands to said file system in triggering with a WRITE command in response to receipt of WRITE command thereof to said command files by means of said standard protocols using said memory means and said interface means.

2. A file system access control apparatus according to claim 1, wherein said file control means further has a WORM control module for WORM commitment of which WORM control module prohibits WRITE operation and updating operation to files which are committed to the WORM status in an assigned retention term.

3. A file system access control apparatus according to claim 1, wherein said file control means further has a daemon process program by which a command access to said file system is executed in response to said WRITE command to said command files and said daemon process executes said command access in a predetermined time interval.

4. A file system access control apparatus according to claim 1, wherein said file control means starts a command operation to said file system synchronously to receipt to a WRITE command to said file system.

5. A file system access control apparatus according to claim 1, wherein said file control means has repository files and register means to register in repository files by which execution results of a command are registered therein and said register means registers execution results into said repository files after receipt of said WRITE command upon receipt of said WRITE command to said command file.

6. A file system access control apparatus according to claim 1, wherein said file control means returns said execution results as a return value to a terminal which issues a request of a WRITE command after executing said WRITE command upon receipt of said WRITE command to command file.

7. A file system access control apparatus according to claim 1, wherein said file control means carries out an error process by terminating execution of a DELETE command in a case that a file which is an objective file against said DELETE command has not experienced said retention term.

8. A file system access control apparatus according to claim 1, wherein said file control means carries out an error process by terminating execution of a file updating command in a case that a file which is an objective file against said file updating command has been set for said retention term.

9. A file system access control apparatus according to claim 1, wherein said file control means carries out an error process by terminating execution of said DELETE command in a case that a file which is an objective file against said DELETE command has not expired said retention term and carries out an error process by terminating execution of a file updating command in a case that a file which is an objective file against said file updating command has been set for said retention term.

10. A file system access control method which is performed by a computer comprising at least a processing means, a memory means to store computer programs and data to be processed therein, a device access means which enables to access an external storage device, a file control means to control a file system and an interface means which supports communication through an internet, wherein

said file control means performs a function by means of command files which are to request processing access command to said file system by means of standard protocols, a function to receive a WRITE command to said command files by means of said standard protocols using said memory means and said interface means and a function to start processing access commands to said file system in triggering with a WRITE command in response to receipt of WRITE command.

11. A file system access control method according to claim 10, wherein said file control means further performs a function of WORM commitment of which WORM commitment prohibits WRITE operation and updating operation to files in an assigned retention term.

12. A file system access control method according to claim 10, wherein said file control means further performs a function of a daemon process by which a command access to said file system is executed in response to said WRITE command to said command files and said daemon process executes said command access in a predetermined time interval.

13. A file system access control method according to claim 10, wherein said file control means performs a function to start a command operation to said file system synchronously to receipt to a WRITE command to said file system.

14. A file system access control method according to claim 10, wherein said file control means has repository files and register means to register in repository files by which execution results of a command are registered therein and said register means performs a function to register execution results into said repository files after receipt of said WRITE command upon receipt of said WRITE command to said command file.

15. A file system access control method according to claim 10, wherein that said file control means performs a function to return said execution results as a return value to a terminal which issues a request of a WRITE command after executing said WRITE command upon receipt of said WRITE command to command file.

16. A file system access control method according to claim 10, wherein that said file control means performs a function to carry an error process by terminating execution of a DELETE command in a case that a file which is an objective file against said DELETE command has not experienced said retention term.

17. A file system access control method according to claim 10, wherein said file control means performs a function to carry an error process by terminating execution of a file updating command in a case that a file which is an objective file against said file updating command has been set for said retention term.

18. A file system access control method according to claim 10, wherein said file control means performs to carry out an error process by terminating execution of said DELETE command in a case that a file which is an objective file against said DELETE command has not passed said retention term and carries out an error process by terminating execution of a file updating command in a case that a file which is an objective file against said file updating command has been set for said retention term.

19. A recording medium including file system access control program which performs with a computer comprising at least a processing means, a memory means to store computer programs and data to be processed therein, a device access means which enables to access an external storage device, a file control means to control a file system and an interface means which supports communication through an internet, wherein

said file control means performs a function by means of command files which are to request processing access command to said file system by means of standard protocols, a function to receive a WRITE command to said command files by means of said standard protocols using said memory means and said interface means and a function to start processing access commands to said file system in triggering with a WRITE command in response to receipt of WRITE command.

20. A recording medium including file system access control program according to claim 19, wherein said file control means further performs a function of WORM commitment of which WORM commitment prohibits WRITE operation and updating operation to files in an assigned retention term.