Tim Allen My CV

March 10, 2016

local backup

Filed under: programming — tallen @ 6:35 pm

This runs a local backup to a mounted file system (ext4 or btrfs). It does de-duplication at the file level; that is, the first backup copies everything, subsequent backups only copy the changed files and hard link to the unchanged files. RAID storage systems like NetApp de-duplicate at the block level but the snapshot paradigm is very similar.

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