Incrementals Based on Archive Bit
The Incrementals Based on Archive Bit property specifies that NetBackup will include files in an incremental backup only if the archive bit of the file is set. The system sets this bit whenever a file is changed and it normally remains set until NetBackup clears it.
A full backup always clears the archive bit. A differential-incremental backup clears the archive bit if the file is successfully backed up within the number of seconds indicated by Wait Time Before Clearing Archive Bits. A cumulative-incremental or user backup has no effect on the archive bit.
Clear the Incrementals Based on Archive Bit check box to have NetBackup include a file in an incremental backup only if the datetime stamp for the file has been changed since the last backup. For a differential-incremental backup, NetBackup compares the datetime stamp to the last full or incremental backup. For a cumulative-incremental backup, NetBackup compares the timestamp to the last full backup.
If you install or copy files from another computer, the new files retain the date timestamp of the originals. If the original date is before the last backup date on this computer, then the new files are not backed up until the next full backup.
Note
NetBackup recommends that you do not combine differential incremental backups and cumulative incremental backups within the same Windows policy when the incremental backups are based on archive bit (default).
This property appears for Windows clients only.
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