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McIrish

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Here's kind of an odd problem. I run a full backup to a NAS every Sunday at 1am. Since the 8.5.1. update, I am getting backup failed notices that are like this:
____________________________________________________________ ____________________
This is an informative message sent by Kerio Connect 8.5.1 at email.xxxxxx.com.

The backup to the \\Backup-Remote\Backup\MailServer\Backup directory, started on Sun, 19 Jul 2015 01:00:01 -0500, failed.

Backup to the \\Backup-Remote\Backup\MailServer\Backup/F20150719T060001Z.z ip file failed,
3144851 MB of 7492801 MB free on destination disk, backup file size 0 B.
____________________________________________________________ _________________________

The incremental backups seem to work though
____________________________________________________________ _______________________
This is an informative message sent by Kerio Connect 8.5.1 at email.xxxxxxx.com.

The backup to the \\Backup-Remote\Backup\MailServer\Backup/D20150720T060007Z.z ip file started on Mon, 20 Jul 2015 01:00:07 -0500 and finished successfully on Mon, 20 Jul 2015 02:14:41 -0500.



The following warnings were generated during the backup
M:\Program Files (x86)\Kerio\MailServer\store/spamassassin/bayes/bayes.db (file size exceeds allowed maximum for compressed volumes)


You can replace the backup media now.
____________________________________________________________ ____________________
If I look in the logs, I see this for the backup failure.

____________________________________________________________ _____________________
[19/Jul/2015 11:01:53] backup.cpp: Cannot write file M:\Program Files (x86)\Kerio\MailServer\store/mail/xxxxxx.com/username/INBOX/ #msgs/00029ca3.eml to backup ZIP file \\Backup-Remote\Backup\MailServer\Backup/F20150719T060001Z
[19/Jul/2015 11:01:55] backup.cpp: BACKUP: Backup failed in folder ~username<_at_>xxxxxx.com/INBOX, 3068065 MB (3068065 total) of 7492801 MB free on destination disk
____________________________________________________________ _______________________

Anyone have any idea what's going on here? How could incremental backups work if the full backup didn't? Or is it just that one file didn't get backed up? I'm confused. I checked the backup NAS and I'm not seeing enough zipped folders to cover a full backup. The backup NAS has 3TB of free space left and the backup is only 250GB so I'm not sure what's happening. Any help would be great.
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Ernesto (Kerio)

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According to the error in the log file, the full backup needs 7.49 TB and there is only 3TB available. That's the reason why the full backup failed.

The differential backups are smaller and in this case the subsequent differential worked. That differential is likely associated with the last full one that succeed, maybe a couple weeks ago.

Sales Engineer | Kerio
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Ernesto (Kerio)

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Let me correct myself: the error in the log says that there are 3TB free out of 7.49TB. (4.49TB used).

So, is not clear what caused that full backup to fail, other than the write error.

I would recommend to enable the option "Store Backup" in Logs->Debug in Kerio Connect web admin console and let the full backup run again. You can enable this option by right-clicking inside the log area and selecting Messages from the context menu.

If it fails again, call our technical support and send them a copy of the debug log.

Sales Engineer | Kerio
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McIrish

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I will do that. Thanks for the idea Ernesto.
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