US Patent No: 8,170,985

Number of patents in Portfolio can not be more than 2000

Primary stub file retention and secondary retention coordination in a hierarchical storage system

ALSO PUBLISHED AS: 20070179990




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A protected file is retained in secondary storage for a retention period, and a corresponding stub file is retained in primary storage for the retention period. The stub file retains attributes of the file indicating a location of the file data in the secondary storage and indicting that the stub file is to be retained for the retention period. A system administrator may instruct a primary file server that a secondary file server supports retention based protection and it is desired to protect stub files corresponding to protected files that are migrated to the secondary file server. The primary file server may request the secondary file server to return a protection status of the file after migration. This enables automatic policy-based migration to both file level retention (FLR) and non-FLR retention protected secondary storage from diverse applications accessing FLR or non-FLR files in the primary storage.

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Patent Owner(s)

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International Classification(s)

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Inventor Name Address # of filed Patents Total Citations
Chuba, Christian J Berkeley Heights, NJ 5 54
Stacey, Christopher H Swindon, GB 12 368
Walker, Mary Windham, NH 4 102
Zimran, Eyal Richmond, GB 16 383

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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
8,516,022 Automatically committing files to be write-once-read-many in a file system 1 2012
8,316,065 Data migration system and data migration method 0 2009

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