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:
Jul. 03, 2007
Filed:
Sep. 25, 2001
Christos Karamanolis, Sunnyvale, CA (US);
Zheng Zhang, San Jose, CA (US);
Mallik Mahalingam, Santa Clara, CA (US);
Daniel A. Muntz, Cupertino, CA (US);
Christos Karamanolis, Sunnyvale, CA (US);
Zheng Zhang, San Jose, CA (US);
Mallik Mahalingam, Santa Clara, CA (US);
Daniel A. Muntz, Cupertino, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Method and system for performing a namespace operation in a distributed file system. The file system is disposed on a plurality of partition servers, and each partition server controls access to a subset of hierarchically-related, shared storage objects. Each namespace operation involves a namespace object and a target object that are part of the shared storage objects. Namespace operations received at each partition server are serialized. In response to an unlink namespace operation, a reference in the namespace object to the target object is removed, and after removal the target object is modified in accordance with the unlink operation. In response to a link operation, the target object is modified consistent with the link operation. After modification of the target object, a reference to the target object is inserted in the namespace object.