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. 30, 2007
Filed:
Sep. 09, 2002
Rahim Ibrahim, Mountain View, CA (US);
Tuan Nguyen, San Jose, CA (US);
Ashish Shah, San Ramon, CA (US);
Ranjit Ghate, Oakland, CA (US);
Chan NG, San Jose, CA (US);
Gen-hwa Chiang, Milpitas, CA (US);
Rahim Ibrahim, Mountain View, CA (US);
Tuan Nguyen, San Jose, CA (US);
Ashish Shah, San Ramon, CA (US);
Ranjit Ghate, Oakland, CA (US);
Chan Ng, San Jose, CA (US);
Gen-Hwa Chiang, Milpitas, CA (US);
Network Appliance, Inc., Sunnyvale, CA (US);
Abstract
A storage virtualization system for accessing at least one storage device for a virtual logical unit (VLUN) from at least one host. The system includes at least one upstream processing element (UPE) which is adapted for coupling to a corresponding host server. The system is further adapted for coupling to at least one storage device. The controller also includes a primary central processing element (CPE) that can be configurably coupled to the UPEs. The primary CPE permits data transfer to occur between a host and a storage device via the corresponding UPE. The controller further includes a backup CPE that can be configurably coupled to the UPEs. The backup CPE is configurable to permit the data transfer when the primary CPE becomes unavailable.