Every night, the Veeam B&R does a backup of 10 VMs to my Qnap with the mydomain\vbr.service user without any problem. The path of the backup repository is \\myqnap\VeeamB&R\. The backup files goes to \\myqnap\VeeamB&R\MyVMs\.
I want to schedule the Configuration Backup to the same backup repository. I opened Configuration Backup settings and chose the same backup repository. I clicked on the Backup now button and the backup failed with the next message >
Interesting thing is that the job creates the \\myqnap\VeeamB&R\VeeamConfigBackup\SERVER\ folder, of course, without the .bco file in it.Error The system cannot find the file specified.
Failed to create file [\\myqnap\VeeamB&R\VeeamConfigBackup\SERVER\SERVER_2021-03-10_11-00-00.bco].
Error Moving configuration backup to repository VeeamB&R.
I did the test and created a Qnap local user (qnapvbr) which I gave RW permissions to the \\myqnap\VeeamB&R\ folder. I added it to the Veeam console, reconfigured the Veeam with it, and the backup job succesfully finished again. I went back to Configuration Backup, started the Backup now job and it succesfully finished too.
It's very odd. The mydomain\vbr.service user has RW permissions on the \\myqnap\VeeamB&R\ folder. The job files are stored in there. But it can't make the backup of Veeam configuration in the same path. It can create the folders, but can't store the .bco files.
On the other hand, the qnapvbr user can do both.
Why!? I want to use my domain user, not the Qnap local user for the Veeam tool and its jobs.