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:
Jun. 14, 2011
Filed:
Feb. 02, 2010
David Hitz, Los Altos, CA (US);
John K. Edwards, Sunnyvale, CA (US);
Blake H. Lewis, Los Altos Hills, CA (US);
David Hitz, Los Altos, CA (US);
John K. Edwards, Sunnyvale, CA (US);
Blake H. Lewis, Los Altos Hills, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A method and apparatus for operating a data storage system is disclosed. An original active file system holds incoming write transactions. Data is written at a selected time to blocks in a data storage device of the original active file system, the data written to blocks which do not hold old data of the data storage system. Pointers to data of the original active file system are written at the selected time to the data storage device, the pointers written to blocks which do not hold old data of the data storage system, the pointers and a previously saved data of the active file system forming a consistency point of the original active file system at the selected time. A new active file system is started using the consistency point of the original active file system at the selected time.