Can We Really Recover Data if Storage Subsystem Fails?

Abstract

This paper presents a theoretical and experimental study on the limitations of copy-on-write snapshots and incremental backups in terms of data recoverability. We provide mathematical proofs of our new findings as well as implementation experiments to show how data recovery is done in case of various failures. Based on our study, we propose a new system… (More)
DOI: 10.1109/ICDCS.2008.38

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