REMOVAL OF DATA REMANENCE IN DEDUPLICATED STORAGE CLOUDS

摘要

A method implemented in a computer infrastructure including a combination of hardware and software includes receiving from a local computing device a request to securely delete a file. The method also includes determining the file is deduplicated. The method further includes determining one of: the file is referred to by at least one other file, and the file is not referred to by another file. The method additionally includes securely deleting links associating the file with the local computing device without deleting the file when the file is referred to by at least one other file. The method also includes securely deleting the file when the file is not referred to by another file.