Full files backup issue, large volume of data


i have urbackup server install on RHEL distribution.

I am trying to save 18 To of data of a windows server with urbackup client installed. (datas are splitted on several disk of 2 To).

The save is very long (2weeks) and it is unable to finish without error.
Files are copied on the server but on GUI interface, i can’t browse the saved data. They aren’t visible.
Is there a way to resync database and backuped files after error ?

Generally, is it possible to improve performance? The urBackup server and the windows server client is on the same LAN.
What are the best settings to perform backup of big size of data ?

Other questions, is it possible to use an other database like PostgreSQL with UrBackup ?

Thanks for your help.