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Custom Incremental Backup Schemes--Delete older than X days.

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            Custom INCREMENTAL Backup

This posting is just ONE example of how the CUSTOM INCREMENTAL Backup Schemes works when the AUTOMATIC CLEANUP Options are set to

      Backup scheme= Full after 6 incremental (this chain=7 files)
      Auto cleanup= delete version chains (chain= 7 files) older than 7 days

This example should help to prevent some of the mis-understanding of how this "delete version chains older than X days" actually works.

The examples below indicates that automatic cleanup (older than X days) occurs (on next backup), after the last incremental s7 (in the oldest chain) reaches X number of days old.

Help links in creating this type custom backup scheme listed next.
( Illustration 11-Inc plus associated text with 11-Inc or 11-Dif or 11-Full examples. )

      Grover's How to Create a "Disk Image" or "Disk Mode" Image or "Disk mode" image.  and  
      Grover's How to Backup 2012 from within Windows

            "Custom" backup scheme configuration setting"

      Click images to enlarge for better viewing.

Before Automatic cleanup #1 -- Backup Scheme Auto cleanup= delete version chains older than 7 days

After Cleanup 1 -- Backups #1-7 deleted

Before Automatic Cleanup 2 -- Backup scheme Auto cleanup= delete version chains older than 7 days

After Cleanup 2 -- Backups #8-14 deleted

Before Automatic Cleanup 3 -- Backup scheme Auto cleanup= delete version chains older than 7 days

After Cleanup 3 -- Backups #15-21

Remarks: Computer not always available so some dates and time are not continuous.

Acronis help files discusses method used in controlling automatic cleanup.
http://www.acronis.com/support/documentation/ATIH2014/index.html#16143.html

AGH-1. 64640: Do's & Don'ts--Hints to help prevent issues with your TIB

GH25. Understanding differences between Inc and Dif for Safety

GH58. Difference between Partition Mode & Select Disk Mode backups.

Edit: Septmber 12, 2015
This link may also be of interest.
http://forum.acronis.com/forum/98931#comment-298431

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