FILE PROCESSING APPARATUS AND FILE PROCESSING METHOD

• US 20130124585A1
• Filed: 09/12/2012
• Published: 05/16/2013
• Est. Priority Date: 11/15/2011
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Shimomura, Kazuhito, SUZUKI, Kenichiro, Sakai, Yuji, Fukushima, Atsushi, Inoue, Masaaki
• Application Number:
  US13/612,409
• Publication Number:
  US 20130124585A1
• Time in Patent Office: Days
• US Class Current: 707/822
• CPC Class Codes: G06F 11/1076 Parity data used in redundant arrays of independent storages, e.g. in RAID systems
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/0643 Management of files
• CPC Class Codes: G06F 3/0683 Plurality of storage devices

Abstract

According to one embodiment, a file processing apparatus includes a file group generator, a divided file generator, and a recorder. The file group generator is configured to generate a file group formed by a plurality of first processing target files each having a size less than a threshold size of processing target files. The divided file generator is configured to generate first divided files by dividing the file group, and to generate second divided files by dividing a second processing target file having a size not less than the threshold size of the processing target files. The recorder is configured to record the first and second divided files.

Claims

1. A file processing apparatus comprising:

a detector configured to detect sizes of processing target files;

a file group generator configured to generate a file group formed by a plurality of first processing target files each having a size less than a threshold size of the processing target files;

a divided file generator configured to generate a plurality of first divided files by dividing the file group, and to generate a plurality of second divided files by dividing a second processing target file having a size not less than the threshold size of the processing target files; and

a recorder configured to record a plurality of combined files each obtained by combining one first divided file and one second divided file on a plurality of recording destinations.

2. The apparatus of claim 1, wherein the divided file generator is configured to divide the file group into the predetermined number of files to generate the predetermined number of first divided files, and to divide the second processing target file into the predetermined number of files to generate the predetermined number of second divided files.

3. The apparatus of claim 2, wherein the divided file generator is configured to divide the file group into files as many as the number of recording destinations, and to divide the second processing target file into files as many as the number of recording destinations.

4. The apparatus of claim 3, wherein the divided file generator is configured to divide the file group into files each having a first size, and to divide the second processing target file into files each having a second size.

5. The apparatus of claim 1, wherein the recorder is configured to record, on the respective recording destinations, management information indicating that the plurality of combined files are respectively recorded on the plurality of recording destinations.

6. The apparatus of claim 5, wherein the recorder is configured to record the management information including information indicating recording destinations of the plurality of first divided files on the respective recording destinations.

7. The apparatus of claim 6, wherein the recorder is configured to record the management information including information indicating recording destinations of the plurality of second divided files on the respective recording destinations.

8. The apparatus of claim 1, wherein the recorder is configured to parallelly record the plurality of combined files on the plurality of recording destinations, respectively.

9. The apparatus of claim 1, wherein the recorder is configured to record error detection data for the plurality of combined files recorded on the plurality of recording destinations on a recording destination different from the plurality of recording destinations.

10. A file processing method comprising:

detecting sizes of processing target files;

generating a file group formed by a plurality of first processing target files each having a size less than a threshold size of the processing target files;

generating a plurality of first divided files by dividing the file group, and generating a plurality of second divided files by dividing a second processing target file having a size not less than the threshold size of the processing target files; and

recording a plurality of combined files each obtained by combining one first divided file and one second divided file on a plurality of recording destinations.