Backup error on Cobian

[dungdq83]

I use Cobian Backup.
I have a Backup configuration from Window Server 2016 to NAS using FTP.
The first time I selected Full Backup the following days was Incremental. By default, there will be 1 Full Bakup and 6 Incremental copies in a week. However, after creating, the NAS created 1 Full Backup and 6 Incremental copies, while the Server displayed all Incremental copies. This resulted in old data not being deleted on the NAS.

[cobian]

This is often caused by a permissions problem at the NAS side. Check the permissions against the user running the task to see if you find the problem there,

[dungdq83]

On the NAS I have given Full permission to the Backup account. With this Backup account, I run SQLBackupAndFTP which will advise you to delete old data normally.