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Backup Archive Bit
Backup refers to making copies of data so that these additional copies may be used to restore the original after a data loss event.  Backup Data
But how does the backup utility knows which files to backup??!!
One of the files properties is  The Archive Bit. The archive bit is a binary bit. Either 1 or 0, it is also called set (1) and clear or reset (0). Backup Archive Bit
What does this bit represents?! If it has been set to (0) it represents that the file has been backed up. And (1) represents that the file has been modified since the last backup.
How does it work?! When the backup operation is done, it looks for files with the (1) archive bit. Once the file is backed up,  		it will be reset to (0). This type of backup is called..  	An incremental backup.
Backup Methods These backup methods can affect the archive bit: ,[object Object]
Differential Backup : does not reset archive bit
Incremental Backup : reset archive bit,[object Object]

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Backup Archive Bit

  • 2. Backup refers to making copies of data so that these additional copies may be used to restore the original after a data loss event. Backup Data
  • 3. But how does the backup utility knows which files to backup??!!
  • 4. One of the files properties is The Archive Bit. The archive bit is a binary bit. Either 1 or 0, it is also called set (1) and clear or reset (0). Backup Archive Bit
  • 5. What does this bit represents?! If it has been set to (0) it represents that the file has been backed up. And (1) represents that the file has been modified since the last backup.
  • 6. How does it work?! When the backup operation is done, it looks for files with the (1) archive bit. Once the file is backed up, it will be reset to (0). This type of backup is called.. An incremental backup.
  • 7.
  • 8. Differential Backup : does not reset archive bit
  • 9.
  • 10. Syntax:ATTRIB [d:][path]filename [/S]ATTRIB [+ R|-R] [+A|-A] [+ H|-H] [+ S|-S] [d:][path]filename [/S]