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. 02, 2004
Filed:
Mar. 29, 2002
William Frederick Baxter, III, Holliston, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A storage processor for a block storage RAID array services disk storage block requests from one or more hosts. At its heart, a application specific integrated chip (ASIC) supports a store and forward data transfer regime in that host to disk transfers are made by placing data in storage processor memory under control of the storage processor, operated on by the ASIC, and sent to the disk array. Efficient handling of ordering is, preferably, provided by hardware logic-based masking of interrupts and by other mechanisms. Embodiments help to insure that shared data paths are flushed of non-critical data quickly to sustain more critical data, for example, that required to sustain high throughput.