Differential backups full instead of just adding new files

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Mishkin
Posts: 14
Joined: Tue Jan 25, 2011 6:56 pm

Differential backups full instead of just adding new files

Post by Mishkin » Sat Aug 27, 2011 5:08 am

I cleaned an old Differential backup job and left file number 1 (the first full backup)
that was created some monthes ago.
After cleaning, I performed a (differential) backup and I saw that the new zip file, number 2,
is again a full backup instead of just adding the new data since file number 1 was created.

Please your help.

I use version 4.5 / 236

Support
Posts: 1471
Joined: Wed Dec 16, 2009 12:46 pm
Location: Cluj-Napoca, Romania
Contact:

Re: Differential backups full instead of just adding new files

Post by Support » Mon Aug 29, 2011 10:05 am

Hi,

Please send us the last backup log from View->Job Logs->Last backup log.

Mishkin
Posts: 14
Joined: Tue Jan 25, 2011 6:56 pm

Re: Differential backups full instead of just adding new files

Post by Mishkin » Mon Aug 29, 2011 2:24 pm

The extensions txt and log are not allowed, I don't know how to attach the file.
Please explain.

Support
Posts: 1471
Joined: Wed Dec 16, 2009 12:46 pm
Location: Cluj-Napoca, Romania
Contact:

Re: Differential backups full instead of just adding new files

Post by Support » Tue Aug 30, 2011 7:33 am

Hi,

Please send us the file to support[at]backup4all[dot]com

Mishkin
Posts: 14
Joined: Tue Jan 25, 2011 6:56 pm

Re: Differential backups full instead of just adding new files

Post by Mishkin » Tue Aug 30, 2011 2:02 pm

I have emailed the file, waiting for your reply.
Thanks

Support
Posts: 1471
Joined: Wed Dec 16, 2009 12:46 pm
Location: Cluj-Napoca, Romania
Contact:

Re: Differential backups full instead of just adding new files

Post by Support » Wed Aug 31, 2011 9:13 am

Hi,

In Backup Properties->Differential page, there is an option checked:
"Make full backup if the differential exceeds (%): 50% of full backup size"

In the log file there is: "Performing full backup because differential size (64.12 GB) exceeds 50 % of last full backup size"
That means the full was performed because the differential exceeds 50% of the full backup size.

Mishkin
Posts: 14
Joined: Tue Jan 25, 2011 6:56 pm

Re: Differential backups full instead of just adding new files

Post by Mishkin » Thu Sep 01, 2011 7:57 pm

I was not aware of this, Thanks :)

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