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. 17, 2009
Filed:
Oct. 06, 2004
Atul Adya, Redmond, WA (US);
William J. Bolosky, Issaquah, WA (US);
Gerald Cermak, Bothell, WA (US);
John R. Douceur, Bellevue, WA (US);
Marvin M. Theimer, Bellevue, WA (US);
Roger P. Wattenhofer, Zurich, CH;
Atul Adya, Redmond, WA (US);
William J. Bolosky, Issaquah, WA (US);
Gerald Cermak, Bothell, WA (US);
John R. Douceur, Bellevue, WA (US);
Marvin M. Theimer, Bellevue, WA (US);
Roger P. Wattenhofer, Zurich, CH;
Microsoft Corporation, Redmond, WA (US);
Abstract
A serverless distributed file system manages the storage of files and directories using one or more directory groups. The directories may be managed using Byzantine-fault-tolerant groups, whereas files are managed without using Byzantine-fault-tolerant groups. Additionally, the file system may employ a hierarchical namespace to store files. Furthermore, the directory group may employ a plurality of locks to control access to objects (e.g., files and directories) in each directory.