System and method for efficient data removal in a deduplicated storage system

摘要

A system, method, and medium for detecting expired data in a data deduplicated storage system are disclosed. The system receives a request to insert a file into the deduplicated storage system. In response, the system determines a unique identifier for the file and stores the unique identifier in a list of unique identifiers associated with a data object that stores the file content. The system determines that the data object is not expired based at least in part on the identifier being present in the list of unique identifiers.