ACRONIS Backup & Recovery 10 Advanced Server Virtual Edition User's Guide Page 159

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Copyright © Acronis, Inc., 2000-2009 159
four incremental backups on the 4th week.
The next full backup (320 Gb) should be written on Friday of the 4th week. However tape 02 has only
104 Gb of free space at the moment. So after the tape reaches the end, the recording continues from
the beginning of free tape 03.
Keep in mind, that the Cleanup task is launched after each backup operation for the GFS scheme. This
task deletes all the outdated backups. The next figure shows dark-gray rectangles instead of the
backups deleted up to the current time.
Physically the deleted backups are still on the tapes; however information about the backups is
deleted from the storage node database.
Below, the figure shows the deleted backups as actual, but demonstrates tape usage during the
whole year for the GFS backup scheme in combination with the specified tape options. A number in
the green rectangle marks an incremental backup created on Monday of the corresponding week of
the year.
Tape usage during the first year
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