Method, system, and program for archiving files

• US 8,700,576 B2
• Filed: 07/18/2011
• Issued: 04/15/2014
• Est. Priority Date: 10/07/2003
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Stakutis, Christopher J., Stearns, Kevin M., Stuart, Alan L., Marek, Toby L., Haselton, William R.
• Primary Examiner(s): ALAM, SHAHID AL
• Application Number:
  US13/185,404
• Publication Number:
  US 20110276540A1
• Time in Patent Office: 1,002 Days
• Field of Search: 707/638, 707/640, 707/655, 707/823, 707/825, 707/662, 707/705
• US Class Current: 707/662
• CPC Class Codes: G06F 16/113 Details of archiving lifecycle management in storage systems G06F3/0649; backup systems G06F11/1446
• CPC Class Codes: G06F 16/125 characterised by the use of retention policies retention policies for HSM systems G06F16/185
• CPC Class Codes: G06F 16/20 of structured data, e.g. relational data
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99954 Version management
• CPC Class Codes: Y10S 707/99955 Archiving or backup

Abstract

Provided are a method, system, and program for archiving files. A hierarchical file system having directories is provided. An archival retention policy is associated with at least one of the directories in the hierarchical file system, wherein the retention policy applies to files included in the associated directory, and wherein the retention policy specifies a retention time indicating a time period during which a file is subject to the retention policy.

Claims

1. A method for archiving files in a computer system, comprising:

providing a hierarchical file system having a plurality of directories in a computer readable medium, a directory of the plurality of directories including a retention policy code in a pathname of the directory, wherein the retention policy code represents a retention policy that specifies a retention time indicating a time period during which files included in the directory cannot be deleted, moved or modified without restriction;

receiving a request to delete, move or modify a file;

when the file is in the directory, examining the retention policy code in the pathname of the directory to determine whether to execute the request; and

returning a message denying the request when the file is in the directory and the retention policy code indicates that the request is prohibited by the retention policy.

2. The method of claim 1, wherein the pathname of the directory including the retention policy code is displayed in a display of the hierarchical file system.

3. The method of claim 1, wherein the retention policy code included in the pathname of the directory specifies the time period.

4. The method of claim 1, wherein the retention policy applies up until the retention time, and wherein the retention policy applies to the file if a current time is not greater than the retention time.

5. The method of claim 1, wherein the directory has subdirectories, and wherein the retention policy applies to any file within the subdirectories.

6. The method of claim 1, wherein computer system is connected to a storage system over a network, and wherein the hierarchical file system provides access and the retention policy applies to files stored in the storage system over the network.

7. The method of claim 1 wherein a second directory of the plurality of directories does not include a retention policy code in a pathname of the second directory, the method further comprising:

transmitting the request to a file system to execute the request when the file is in the second directory.

8. The method of claim 1, further comprising:

transmitting the request to a file system to execute the request when the file is in the directory and the retention policy code indicates that the request is not prohibited by the retention policy.

9. The method of claim 1, wherein the message includes a description of the retention policy and the pathname of the directory.

10. An article of manufacture comprising a computer readable storage medium having code executed by a processor for archiving files by performing operations, the operations comprising:

providing a hierarchical file system having a plurality of directories in a computer readable medium, a directory of the plurality of directories including a retention policy code in a pathname of the directory, wherein the retention policy code represents a retention policy that specifies a retention time indicating a time period during which files included in the directory cannot be deleted, moved or modified without restriction;

receiving a request to delete, move or modify a file;

when the file is in the directory, examining the retention policy code in the pathname of the directory to determine whether to execute the request; and

returning a message denying the request when the file is in the directory and the retention policy code indicates that the request is prohibited by the retention policy.

11. The article of manufacture of claim 10, wherein the pathname of the directory including the retention policy code is displayed in a display of the hierarchical file system.

12. The article of manufacture of claim 10, wherein the retention policy code included in the pathname of the directory specifies the time period.

13. The article of manufacture of claim 10, wherein the retention policy applies up until the retention time, and wherein the retention policy applies to the file if a current time is not greater than the retention time.

14. The article of manufacture of claim 10, wherein the directory has subdirectories, and wherein the retention policy applies to any file within the subdirectories.

15. The article of manufacture of claim 10, wherein processor and the computer readable storage medium are implemented in a computer system connected to a storage system over a network, and wherein the hierarchical file system provides access and the retention policy applies to files stored in the storage system over the network.