Abstract: A computer determines a degree of information duplication between at least two files included in an original pre-fetch list. The computer generates a re-ordered pre-fetch list by re-ordering the files included in the original pre-fetch list. The re-ordering is based, at least in part, on the degree of information duplication between the two files included in the original pre-fetch list. The files included in the original pre-fetch list are re-ordered by grouping files containing higher degrees of duplicate information closer together in the re-ordered pre-fetch list.

Abstract: Asynchronous replication of an original data set, at a first location, as a replicated data set, with provision for secure delete operations. A snapshot utility performs a first asynchronous replication operation on an initial version of the original data set to make an initial version of the replicated data set. Some data is subsequently securely deleted from the initial version of the original data set. This secure delete operation is also performed on the initial version of the replicated data set before the next asynchronous replication takes place. In this way, the deletion will be secure (that is, with overwrite) in the replicated data set.

Abstract: A computer determines a degree of information duplication between at least two files included in an original pre-fetch list. The computer generates a re-ordered pre-fetch list by re-ordering the files included in the original pre-fetch list. The re-ordering is based, at least in part, on the degree of information duplication between the two files included in the original pre-fetch list. The files included in the original pre-fetch list are re-ordered by grouping files containing higher degrees of duplicate information closer together in the re-ordered pre-fetch list.