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pal

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Backup plan:
Monday trough Saturday 01:00am differntial
Sunday 01:00am full

Last backup confirmation mails (all successful)
Backup in Datei /backup/mailserver/I20101015T230005Z.zip
Backup in Datei /backup/mailserver/F20101016T230010Z.zip
Backup in Datei /backup/mailserver/I20101017T230004Z.zip
Backup in Datei /backup/mailserver/I20101018T230009Z.zip
Backup in Datei /backup/mailserver/I20101019T230003Z.zip

Current backup directroy:
113K 12. Sep 01:00 F20100911T230006Z.zip
 22M 19. Sep 01:00 F20100918T230007Z.zip
519M 26. Sep 01:01 F20100925T230004Z.zip
633M  3. Okt 01:01 F20101002T230006Z.zip
656M 10. Okt 01:01 F20101009T230008Z.zip
2,0G 17. Okt 01:05 F20101016T230010Z.zip
123M  2. Okt 01:00 I20101001T230001Z.zip
 29M  9. Okt 01:00 I20101008T230003Z.zip
1,4G 16. Okt 01:03 I20101015T230005Z.zip
465M 20. Okt 01:01 I20101019T230003Z.zip


Where are the diff backups from 17th and 18th Oct of the current diff backup cycle?
Why are the diff backups from the day before the full backup will be archived and not deleted?
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Pavel Dobry (Kerio)

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It's simple.
"Complete" backup is full backup plus last differential backup.
Ie. complete backup is:
full Oct 2 + diff from Oct 9
full Oct 10 + diff from Oct 16 - this is the combination you need for recovering the store as it was on Oct 16 in case of a disaster. If the hardware failure happens on Oct 18, you need only full backup from Oct 17.
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pal

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To get this right:
If i have a full Backup from 2. Oct and a diff backup from 8. Oct can i restore the complete server state (mailboxes, configuration, ...) for e.g. 5 Oct?
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Pavel Dobry (Kerio)

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No. You can restore complete Kerio Connect data for Oct 2 (just full backup) or Oct 8 (full + diff backup).
The backup feature is intended for recovery in case of failure - recover the most recent version of the message store. It is not supposed to provide archive or 'time machine' functions. For deleted items recovery there is a special function in Kerio Connect.
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pal

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Is there a way to delete the last incremental backup after the creation of the next full backup?
I see no need to store weekly full backups and a diff backup one day prior to each full backup.
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