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The Data Manager Appliance supports both block-based backup (BBB) and File-based backup (FBB) technology for file system backups.
The Data Manager Appliance performs a file system level full and incremental backup using block-based backup (BBB) technology. During the backup, the application agent scans a volume or a disk in a file system and backs up all the blocks that are in use in the file system. Unlike the traditional file system backup, BBB supports high-performance backups with a predictable backup window.
File-based backups (FBB) traverse through the entire directory structure of the file system to back up all the files in each directory of the file system. FBBs can provide additional capabilities such as exclusion. These backups take longer to complete when compared to block-based backups. The File System Agent performs a FBB of the protected assets when an exclusion filter is applied to a protection policy.