Optimized prepopulation of a client side cache in a deduplication environment

摘要

A backup cache on a client is prepopulated with fingerprints corresponding to data stored on a backup server. A plurality of fingerprints of data are received from the client, each received fingerprint corresponding to data present on the client which is subject to backup to the server. For each received fingerprint, an attempt is made to locate data corresponding to the received fingerprint stored on the backup server. Responsive to locating data corresponding to a received fingerprint stored on the backup server, data stored on the backup server considered to be “in the neighborhood” of the located data is identified. Fingerprints (e.g., hashes) identifying data stored on the backup server in the neighborhood of the located data are created and transmitted to the client, for prepopulating the backup cache on the client.