{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9607065","patent":{"patent_number":"US-9607065","title":"Hierarchical coherency log for managing a distributed data storage system","assignee":null,"inventors":[],"filing_date":"2013-04-26T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":15,"abstract":"A system and method for managing distributed coherent datasets using a hierarchical change log is provided. In some embodiments, a distributed storage system is provided that includes a primary storage device containing a primary dataset and a mirror storage device containing a mirror dataset. The mirror dataset includes a coherent copy of the primary dataset. The distributed storage system further includes a hierarchical change log tracking a coherence state for the mirror dataset. The hierarchical change log includes a first sub-log and a second sub-log, and a block range of the first sub-log overlaps a block range of the second sub-log. The hierarchical change log may define a priority relationship between the first sub-log and the second sub-log governing the overlap. The first sub-log and the second sub-log may be independently configured and may be different in one of a representation and a block size."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Hierarchical coherency log for managing a distributed data storage system","description":"A system and method for managing distributed coherent datasets using a hierarchical change log is provided. In some embodiments, a distributed storage system is provided that includes a primary storag","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9607065","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-9607065","citation_suggestion":"Patentable. \"Hierarchical coherency log for managing a distributed data storage system\" (US-9607065). https://patentable.app/patents/US-9607065","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9607065","json":"https://patentable.app/api/llm-context/US-9607065","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:56:58.608Z"}