Section 7 - File backup

This section describes how to perform a file backup with OBM.

7.1 File backup process

1. Stages of a backup job are outlined below:


• A connection from the backup client application to the backup server is established.
• A Shadow Copy set of the backup source volume is created (if available).
• Download the server file list from the backup server.
• Data of the backup source is compared with the server file list to compile the following file lists:
  1. New file list
  2. Modified file list
  3. Deleted file list
• Delta file is generated for modified file (if necessary).



Note:
Only modified part of a file (delta file) is uploaded to the backup server, reducing the time required to complete the backup job.



• Data are encrypted, compressed, and then uploaded onto the backup server.
• The Shadow Copy set of the backup source is removed (if necessary).
• Backup is completed successful.




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