During a block-level backup, each backed up file is made up of a collection of blocks that define that particular file. A catalog file is created containing a list of the backed up files, along with the individual blocks that were used for each file and the available recovery points for these files. When you need to restore a particular file, you can search your backup and select the file you want to restore and the recovery point you want to restore from. CA ARCserve D2D then collects the version of the blocks that were used for the recovery point of the specified file, and reassembles and restores the file.
The following flow diagram shows the process of how CA ARCserve D2D restores a specific file.
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