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:
Nov. 20, 2012
Filed:
Aug. 20, 2007
Sudhir Srinivasan, Acton, MA (US);
Boris Zuckerman, Marblehead, MA (US);
Sudhir Srinivasan, Acton, MA (US);
Boris Zuckerman, Marblehead, MA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A file server is provided for use in an association of devices that implements a distributed-file system, the association of devices including file servers that each are configured to control separate segments of the distributed-file system. The file server includes a memory interface configured to communicate with a memory storing at least one of the segments of the distributed file system, and a processor coupled to the memory interface and configured to: identify a file system object that resides on a first segment in the distributed file system and that is directly pointed to by a first remote ancestor directory that resides on a second segment separate from the first segment; and store a first shadow tree entry in a selected segment other than the second segment, the first shadow tree entry providing a pointer to the file system object and being disposed in a shadow tree, where the first shadow tree entry provides an alternative to the first remote ancestor directory to access the file system object in the distributed file system.