Hello,
we are using azure backup to backup our SQL backup files to the cloud, the SQL backup files are generated by the Application (SAP) and the backup will overwriting the existing backup file, so the backup flow we use is
1. SAP generates a Backup file with a static name to a local disk
2. The backup file is copied to another server using robocopy (scripted) where the azure backup agent is installed, robocopy overwrites the files on the backup server if file is newer
3. server with Azure Backup Agent installed will backup the files to the cloud
the initial backup is successfully done, but the subsequent backups shows minimal data backup around the size of 2 -3 GB even though the full backup of the file is 20 GB and 40 GB, I was expecting the backup will be the full size
I tried restoring one of the full backup file and the backup date shown when restoring in from SQL server is not updated which I took to mean the subsequent backup did not update the full backup file even though the backup file itself is already overwritten
is this expected behaviour ?