{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11983079","patent":{"patent_number":"US-11983079","title":"Recovering a virtual machine after failure of post-copy live migration","assignee":null,"inventors":[],"filing_date":"2022-08-08T00:00:00.000Z","publication_date":"2024-05-14T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":20,"abstract":"Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for any reason, the migrating VM is lost because the VM's latest consistent state is split between the source and destination nodes during migration. PostCopyFT provides a new approach to recover a VM after a destination or network failure during post-copy live migration using an efficient reverse incremental checkpointing mechanism. PostCopyFT was implemented and evaluated in the KVM/QEMU platform. Experimental results show that the total migration time of post-copy remains unchanged while maintaining low failover time, downtime, and application performance overhead."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Recovering a virtual machine after failure of post-copy live migration","description":"Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11983079","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-11983079","citation_suggestion":"Patentable. \"Recovering a virtual machine after failure of post-copy live migration\" (US-11983079). https://patentable.app/patents/US-11983079","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11983079","json":"https://patentable.app/api/llm-context/US-11983079","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:46:13.525Z"}