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:
Jan. 19, 2010
Filed:
Dec. 21, 2001
Susan M. Coatney, Cupertino, CA (US);
Alan L. Rowe, San Jose, CA (US);
Radek Aster, Campbell, CA (US);
Joydeep Sen Sarma, Redwood City, CA (US);
Susan M. Coatney, Cupertino, CA (US);
Alan L. Rowe, San Jose, CA (US);
Radek Aster, Campbell, CA (US);
Joydeep Sen Sarma, Redwood City, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A system and method for disk ownership in a network storage system. Each disk has two ownership attributes set to show that a particular file server owns the disk. In a preferred embodiment the first ownership attribute is the serial number of the file server being written to a specific location on each disk and the second ownership attribute is setting a SCSI-3 persistent reservation. In a system utilizing this disk ownership method, multiple file servers can read data from a given disk, but only the file server that owns a particular disk can write data to the disk.