We use our backup store locally as an archive to retrieve account content for up to two months. Rather that run the backup twice to create the archive backup and the DR backup we could snapshot the DR backup. We would still have to copy it via NFS to get it to the Data Domain. The NDMP backup took 18 hours the NFS copy will take longer to copy the 500 million files and 3 TB of data. We are thinking NDMP is the better way to go. If we create a smaller volume to hold the used portion of the backup store then we could shrink the 18 hours to something a little more reasonable. Then there are always iSCSI disks. |