{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9600315","patent":{"patent_number":"US-9600315","title":"Seamless takeover of a stateful protocol session in a virtual machine environment","assignee":null,"inventors":[],"filing_date":"2010-10-22T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","H04L","G06F"],"num_claims":25,"abstract":"The disclosed technique uses virtual machines in solving a problem of persistent state for storage protocols. The technique provides for seamless, persistent, storage protocol session state management on a server, for higher availability. A first virtual server is operated in an active role in a host system to serve a client, by using a stateful protocol between the first virtual server and the client. A second, substantially identical virtual server is maintained in a passive role. In response to a predetermined event, the second virtual server takes over for the first virtual server, while preserving state for a pending client request sent to the first virtual server in the stateful protocol. The method can further include causing the second virtual server to respond to the request before a timeout which is specific to the stateful protocol can occur."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Seamless takeover of a stateful protocol session in a virtual machine environment","description":"The disclosed technique uses virtual machines in solving a problem of persistent state for storage protocols. The technique provides for seamless, persistent, storage protocol session state management","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9600315","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-9600315","citation_suggestion":"Patentable. \"Seamless takeover of a stateful protocol session in a virtual machine environment\" (US-9600315). https://patentable.app/patents/US-9600315","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9600315","json":"https://patentable.app/api/llm-context/US-9600315","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:54:26.967Z"}