Design Notes
- AWS Glacier basic elements are vaults and archives. Each vault contain one or more archives. Each archive has a description, size and creation date.
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Each glacier archive correspond to one zip or tar file.
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Each archive should contain a snapshot of backup folder (a map of file-hash to a list of paths).
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Each vault should contain one full backup archive and one or more incremental backup archives.
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The full backup archive should always be the first one in the vault.
