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:
Dec. 17, 2002
Filed:
Dec. 29, 1999
William R. Tuccio, Sutton, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method for testing a data storage system, such system having a host computer coupled to a bank of disk drives through a system interface. The interface includes a plurality of directors and memories interconnected by a plurality of busses for controlling data transfer between the host computer and the bank of disk drives as such data passes through the memories. A portion of the directors is coupled to the host computer. The method includes providing a test printed circuit board having input ports adapted for plugging into a system printed circuit board, such test printed circuit board having a selector section adapted to couple any one of the inputs thereof to a test output on the test printed circuit board. The method includes the steps of: (a) prior to a test mode, removing a director or memory and replacing such removed director or memory with the test printed circuit board; (b) operating the system with the test printed circuit board; (c) selectively coupling the inputs of the test printed circuit board to the test output to examine a signal waveform produced at the test port; and (d) repeating steps (a-c).