2017-08-31 18:34 GMT+02:00 Ray Frush <fr...@rams.colostate.edu>:
> I'll extend the example
>
> Day 0  :  Full backup 100GB transfered
> Day 1  : add 5GB ,   Incremental runs, 5GB transferred
> Day 2 : add 5GB  ,   Incremental, ~5GB transferred
> Day 3 ; add 5 GB,   Full runs.   ALL files check-summed.  Files with
> identical checksum are skipped, new/changed files transferred:  ~ 5GB
>        You do incur extra TIME related to checksumming all the files, but
> you only transfer what's changed/new

Perfect.

> BackupPC requires a minimum of one filled backup.   If you gracefully delete
> a filled backup, I believe that BackupPC does intelligently fill the next
> backup.   If you were to delete the filled backup from the filesystem
> directly, It is simply missing, and BackupPC would have to build a restore
> tree referencing all of the available incrementals back to the most recent
> available filled backup.

Ok but let's simulate a crash in your example:

On day 2, before the incremental backup, the filled one (day0) is lost.
Is backup made on day1 still available with "all" files or only with
the latest 5GB added between day0 and day1 ?

------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
BackupPC-users mailing list
BackupPC-users@lists.sourceforge.net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/

Reply via email to