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. 06, 2012
Filed:
Jan. 14, 2008
John F. Betz, Red Hook, NY (US);
Harry M. Yudenfriend, Poughkeepsie, NY (US);
John F. Betz, Red Hook, NY (US);
Harry M. Yudenfriend, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Exemplary embodiments relate to a method for swapping PPRC secondary device definitions from a subchannel set other than zero to subchannel set zero. The method comprises identifying a PPRC primary and secondary device, wherein the PPRC primary device definitions reside at subchannel set zero and the PPRC secondary device definitions reside at a subchannel set other than subchannel set zero, initiating a PPRC device definition substitution operation to substitute the PPRC primary device definitions within the subchannel set where the PPRC secondary device definition resides and substitute the PPRC secondary device definitions within the subchannel set where the PPRC primary device definitions resides, storing the control block information for each PPRC device whose device definitions are to be substituted, and storing the PPRC primary device definitions within the subchannel set where the PPRC secondary device definition resides and storing the PPRC secondary device definitions within subchannel set zero.