Patent ID: 8458131
Filing Date: 2013-06-04
Classification: G06F

Abstract:
1. At a backup server, a method being performed on a computer processor for de-duplicating backup data in storage managed by the backup server, said method comprising: accessing a first client backup database from storage managed by the backup server, said first client backup database storing a first one or more blocks of data, said first one or more blocks of backup data previously stored in said first client backup database to back up said first one or more blocks of backup data for a first client; accessing a second different client backup database from storage managed by the backup server, said second client backup database storing a second one or more blocks of backup data, said second one or more blocks of backup data previously stored in said second client backup database to back up said second one or more blocks of backup data for a second different client; comparing hash values for blocks in said first one or more blocks to hash values for blocks in said second one or more blocks to identify a common block, including: