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. 24, 2009
Filed:
Sep. 29, 2005
Adrianna D. Bailey, Upton, MA (US);
John V. Burroughs, East Sandwich, MA (US);
John P. Didier, Westborough, MA (US);
Morrie Gasser, Hopkinton, MA (US);
Douglas E. Peeke, Shrewsbury, MA (US);
Matthew Long, Uxbridge, MA (US);
Adrianna D. Bailey, Upton, MA (US);
John V. Burroughs, East Sandwich, MA (US);
John P. Didier, Westborough, MA (US);
Morrie Gasser, Hopkinton, MA (US);
Douglas E. Peeke, Shrewsbury, MA (US);
Matthew Long, Uxbridge, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A data storage system has a chassis and a pair of printed circuit boards disposed in the chassis. Each one of the pair of printed circuit boards has disposed thereon a processor, a translator controlled by the processor, a SAS expander having a bidirectional front end port and multiple bidirectional backend ports, and an expansion port, and a SAS controller coupled between the translator and the expander. The system also has an interposer printed circuit board disposed in the chassis, and multiple multiplexers disposed on the interposer printed circuit board. Each one of the multiplexers has a pair of bidirectional front end ports and a pair of bidirectional back end ports. A first one of the pair of bidirectional front end ports is connected to a corresponding backend port of the SAS expander disposed on a first one of the pair of storage processor printed circuit boards. A second one of the pair of bidirectional front end ports is connected to a corresponding backend port of the SAS expander disposed on a second one of the pair of storage processor printed circuit boards. The system also has multiple disk drives disposed in the chassis. Each one is coupled to at least one backend port of a corresponding one of the multiplexers.