Methods for seamless storage importing and devices thereof

• US 9,195,500 B1
• Filed: 02/09/2011
• Issued: 11/24/2015
• Est. Priority Date: 02/09/2010
• Status: Expired due to Fees

• Current Assignee: F5 Networks, Inc. (F5 Incorporated)
• Original Assignee: F5 Networks, Inc. (F5 Incorporated)
• Inventors: Andrews, Michael, Meifert, Brian, Rust, Stephen
• Primary Examiner(s): Rutz, Jared
• Assistant Examiner(s): Ahmed, Hamdy S
• Application Number:
  US13/024,147
• Time in Patent Office: 1,749 Days
• Field of Search: 711/154
• US Class Current: 1/1
• CPC Class Codes: G06F 16/119 Details of migration of file systems migration mechanisms in storage systems G06F3/0647
• CPC Class Codes: G06F 16/16 File or folder operations, e.g. details of user interfaces specifically adapted to file systems
• CPC Class Codes: G06F 3/0643 Management of files
• CPC Class Codes: G06F 9/4862 the task being a mobile agent, i.e. specifically designed to migrate

Abstract

A method, non-transitory computer readable medium and device for seamless storage import includes importing file system structure entries stored in one or more storage devices. A request for an operation on one of the entries in the one or more storage devices is obtained during the importing. An import status of the requested one of the entries is determined. The obtained request is processed based on the determined import status of the requested one of the entries without interrupting the importing. The requested one of the entries is updated with the storage management computing device based on the processing. An aggregation of the imported entries with the updating of the requested one of the entries is stored.

Claims

1. A method for seamless storage import, the method comprising:

importing, by a storage management computing device, file system structure entries stored in one or more storage devices;

obtaining, by the storage management computing device, a request for an operation on one of the file system structure entries in the one or more storage devices during the importing;

determining, by the storage management computing device, an import status of the requested one of the file system structure entries, wherein the import status comprises an indication of the existence in the one or more storage devices of all path and entry components for the obtained request;

processing, by the storage management computing device, the obtained request for an operation based on the determined import status of the requested one of the file system structure entries without interrupting the importing;

updating, by the storage management computing device, the requested one of the file system structure entries based on the processing; and

storing, by the storage management computing device, an aggregation of the imported file system structure entries with the updating of the requested one of the file system structure entries.

2. The method as set forth in claim 1, wherein the processing further comprises:

recording, by the storage management computing device, a changed entry for the requested one of the file system structure entries based on the processing when the determined import status indicates the processing was before the importing, wherein the importing further comprises subsequently importing the changed entry for the requested one of the file system structure entries.

3. The method as set forth in claim 1, wherein the processing further comprises:

determining an import status indicating the importing of the requested one of the file system structure entries is complete;

updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

4. The method as set forth in claim 1, wherein the processing further comprises:

delaying the processing of the obtained request for an operation when the determined import status indicates the requested one of the file system structure entries is being imported;

wherein the processing the obtained request for an operation is completed after the delaying.

5. The method as set forth in claim 4, wherein the processing further comprises:

determining whether the importing of a directory path associated with the requested one of the file system structure entries is complete when the determined import status indicates the importing of the requested one of the file system structure entries is complete;

updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

6. The method as set forth in claim 5, further comprising queuing one or more additional requests which are obtained until the updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries is complete.

7. The method as set forth in claim 1, wherein the processing the obtained request for the operation is delayed for a predetermined period of time when the determined import status indicates that the requested one of the file system entries is locked.

8. A non-transitory computer readable medium having stored thereon instructions for seamless storage import comprising machine executable code which when executed by at least one processor, causes the processor to perform steps comprising:

importing file system structure entries stored in one or more storage devices;

obtaining a request for an operation on one of the file system structure entries in the one or more storage devices during the importing;

determining an import status of the requested one of the file system structure entries, wherein the import status comprises an indication of the existence in the one or more storage devices of all path and entry components for the obtained request;

processing the obtained request for an operation based on the determined import status of the requested one of the file system structure entries without interrupting the importing;

updating the requested one of the file system structure entries based on the processing; and

storing an aggregation of the imported file system structure entries with the updating of the requested one of the file system structure entries.

9. The medium as set forth in claim 8, wherein the processing further comprises:

recording a changed entry for the requested one of the file system structure entries based on the processing when the determined import status indicates the processing was before the importing;

wherein the importing further comprises subsequently importing the changed file system structure entry for the requested one of the file system structure entries.

10. The medium as set forth in claim 8, wherein the processing further comprises:

determining whether the importing of a directory path associated with the requested one of the file system structure entries is complete when the determined import status indicates the importing of the requested one of the file system structure entries is complete;

updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

11. The medium as set forth in claim 8, wherein the processing further comprises:

delaying the processing of the obtained request for an operation when the determined import status indicates the requested one of the file system structure entries is being imported;

wherein the processing the obtained request for an operation is completed after the delaying.

12. The medium as set forth in claim 11, wherein the processing further comprises:

determining whether the importing of a directory path associated with the requested one of the file system structure entries is complete when the determined import status indicates the importing of the requested one of the file system structure entries is complete;

updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

13. The medium as set forth in claim 12, further comprising queuing one or more additional requests which are obtained until the updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries is complete.

14. The medium as set forth in claim 8, wherein the processing the obtained request for the operation is delayed for a predetermined period of time when the determined import status indicates that the requested one of the file system entries is locked.

15. A storage management computing device comprising:

one or more processors;

a memory coupled to the one or more processors which are configured to be capable of executing programmed instructions stored in the memory comprising and stored in the memory to;

import file system structure entries stored in one or more storage devices;

obtain a request for an operation on one of the file system structure entries in the one or more storage devices during the importing;

determine an import status of the requested one of the file system structure entries, wherein the import status comprises an indication of the existence in the one or more storage devices of all path and entry components for the obtained request;

process the obtained request for an operation based on the determined import status of the requested one of the file system structure entries without interrupting the importing;

update the requested one of the file system structure entries based on the processing; and

storing an aggregation of the imported file system structure entries with the updating of the requested one of the file system structure entries.

16. The device as set forth in claim 15, wherein the one or more processors is further configured to be capable of executing programmed instructions stored in the memory for the processing further comprising and stored in the memory to:

record a changed entry for the requested one of the file system structure entries based on the processing when the determined import status indicates the processing was before the importing, wherein the importing further comprises subsequently importing the changed file system structure entry for the requested one of the file system structure entries.

17. The device as set forth in claim 15, wherein the one or more processors is further configured to be capable of executing programmed instructions stored in the memory for the processing further comprising and stored in the memory to:

determine whether the importing of a directory path associated with the requested one of the file system structure entries is complete when the determined import status indicates the importing of the requested one of the file system structure entries is complete;

update the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

18. The device as set forth in claim 15, wherein the one or more processors is further configured to be capable of executing programmed instructions stored in the memory for the processing further comprising and stored in the memory to:

delay the processing of the obtained request for an operation when the determined import status indicates the requested one of the file system structure entries is being imported;

wherein the processing the obtained request for an operation is completed after the delaying.

19. The device as set forth in claim 18, wherein the one or more processors is further configured to be capable of executing programmed instructions stored in the memory for the processing further comprising and stored in the memory to:

determine whether the importing of a directory path associated with the requested one of the file system structure entries is complete when the determined import status indicates the importing of the requested one of the file system structure entries is complete;

update the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries when the determining indicates the importation of the associated directory path is complete.

20. The device as set forth in claim 19, wherein the one or more processors is further configured to be capable of executing programmed instructions stored in the memory further comprising and stored in the memory to:

queue one or more additional requests which are obtained until the updating the requested one of the file system structure entries and the directory path associated with the requested one of the file system structure entries is complete.

21. The device as set forth in claim 15, wherein the processing the obtained request for the operation is delayed for a predetermined period of time when the determined import status indicates that the requested one of the file system entries is locked.