The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2013
Filed:
Sep. 10, 2010
Joon Chang, Austin, TX (US);
David J. Craft, Wimberly, TX (US);
Gokul B. Kandiraju, Tarrytown, NY (US);
Manoj N. Kumar, Austin, TX (US);
Joon Chang, Austin, TX (US);
David J. Craft, Wimberly, TX (US);
Gokul B. Kandiraju, Tarrytown, NY (US);
Manoj N. Kumar, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Some embodiments of the inventive subject matter allow a redirect-on-write file system to continue processing file transactions while writing a snapshot to persistent storage. Thus, embodiments do not block file transactions while flushing snapshots to persistent storage. To avoid blocking, some embodiments the file system can maintain two snapshot generations. The first snapshot generation is the snapshot being written to persistent storage. The second snapshot generation may reside in main memory, and store data for file transactions occurring after the file system began writing the first snapshot generation.