.net - Backup Algorithm -


I am looking to write a program (net) to back up the files on the computer. How can I know which file has been changed to backup (I really do not want to scan the last modified dates every time.)

Does a file only support bits What are the o Notation for any algorithms of backups?

Check out. It may be that you want. In

.net it is System.IO.FileAttributes.Archive , which can be used with SetAttr in VB, or System.IO.FileInfo. Attributes or System.IO.File.SetAttributes () .

Any algorithm that checks the last modified time or archive bit will depend on the number of directories on the drive. Both features are stored in the directory, time will depend on the file system and the level of caching. There may be a more efficient method for analyzing backup efficiency, to see the number of blocks that may occur.


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