{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8516173","patent":{"patent_number":"US-8516173","title":"Swapping PPRC secondaries from a subchannel set other than zero to subchannel set zero using control block field manipulation","assignee":null,"inventors":[],"filing_date":"2008-07-28T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":12,"abstract":"A method for swapping peer-to-peer remote copy (PPRC) secondary device definitions from a subchannel set other than zero to subchannel set zero by the utilization of control block-field manipulation includes identifying a PPRC primary and secondary device pair, wherein a PPRC primary device definition resides at subchannel set zero and the PPRC secondary device definition resides at a subchannel set other than subchannel set zero; within operating system definitions of the PPRC pair, exchanging physical information associated with the PPRC primary and secondary devices, including pathing, node descriptor, device number, and a field cross referencing device numbers of the PPRC pair; and within channel subsystem definitions of the PPRC primary and secondary devices, via a SwapSubchannel instruction, exchanging physical information, including path and control unit information while retaining a subchannel identifier, a subchannel set identifier, and a subchannel interruption parameter pointing to the operating system definition of the device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Swapping PPRC secondaries from a subchannel set other than zero to subchannel set zero using control block field manipulation","description":"A method for swapping peer-to-peer remote copy (PPRC) secondary device definitions from a subchannel set other than zero to subchannel set zero by the utilization of control block-field manipulation i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8516173","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8516173","citation_suggestion":"Patentable. \"Swapping PPRC secondaries from a subchannel set other than zero to subchannel set zero using control block field manipulation\" (US-8516173). https://patentable.app/patents/US-8516173","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8516173","json":"https://patentable.app/api/llm-context/US-8516173","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:42:03.325Z"}