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:
Oct. 19, 2004
Filed:
Apr. 05, 2002
Edward Lewis Hauck, Niwot, CO (US);
Noel Simen Otterness, Lafayette, CO (US);
International Business Machine Corporation, Armonk, NY (US);
Abstract
A mirror table that facilitates selective data coherency between local memory segments and remote memory segments includes a content addressable memory (CAM) and a random access memory (RAM). The CAM stores the addresses of local memory segments that are selected to be mirrored, and provides a segment index when presented with a segment address stored therein. The RAM stores one or more remote segment addresses for the mirrored segments along with additional data, and provides the remote segment addresses along with the additional data when presented with the segment index. A mirror link assembles and transmits an update packet comprising the remote segment addresses, a segment offset, the corresponding data, and the additional data to a remote destination. Each indicated remote address is updated with the corresponding data, thus maintaining data coherency between the selected local and remote memory segments.
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