Operating system error 0x80090006(Invalid Signature) by Scheduled Backup TFS 2015

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I have a Windows Server 2012 R2 with TFS 2015 Update 2 installed. I configured Scheduled backups in TFS Administration Console.

When I manually take a full backup, everything works and the backupfiles are nicely dropped on a networkshare.
However, the automatic backup (at night) fails.

From the event viewer: Exception Message: Cannot open backup device '\\...\Tfs_Configuration_9859327876866326120F.bak'. Operating system error 0x80090006(Invalid Signature.). BACKUP DATABASE is terminating abnormally. (type SqlException)

Help is much appreciated!

windows-server-2012-r2
tfs-2015
asked on Stack Overflow Apr 7, 2016 by Lorenz Rusch

1 Answer

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Mapping the network drive solved the problem!

answered on Stack Overflow Apr 11, 2016 by Lorenz Rusch

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