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:
Jul. 03, 2007
Filed:
Feb. 13, 2004
James Chen, Tucson, AZ (US);
Chung Man Fung, San Francisco, CA (US);
Theodore T. Harris, Jr., Tucson, AZ (US);
William H. Travis, Tucson, AZ (US);
James Chen, Tucson, AZ (US);
Chung Man Fung, San Francisco, CA (US);
Theodore T. Harris, Jr., Tucson, AZ (US);
William H. Travis, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system, where the first information storage and retrieval system comprises (N) PPRC adapters and information. The method generates and saves an Established Path Bitmap which recites the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary storage system, then the method adds that adapter to the Available Path Bitmap. The primary information storage and retrieval system generates a PPRC task comprising a flag set to 'off'. The method copies the Available Path Bitmap as a Working Bitmap, and generates a PPRC request comprising a flag set to 'on', selects one of the adapters recited in the Working Bitmap, and provides the PPRC request to that selected adapter. The method then once attempts to provide information to the second information storage and retrieval system using the selected adapter.