US Patent 12001391 Managing objects stored at a remote storage

An indication to store to a remote storage a new archive of a snapshot of a source storage is received. At least one shared data chunk of the new archive is determined to be already stored in an existing chunk object of the remote storage storing data chunks of a previous archive. One or more evaluation metrics for the existing chunk object are determined based at least in part on a retention period associated with one or more individual chunks stored in the chunk object and a data lock period associated with the entire existing chunk object. It is determined based on the one or more evaluation metrics whether to reference the at least one shared data chunk of the new archive from the existing chunk object or store the at least one shared data chunk in a new chunk object of the remote storage.