After I changed these settings, I continue having slowdown issues, but with Server Web UI. I mean, the backup it is doing, but, when I try to view the status of the backup, the web interface of the server doesn´t load. It asks for password and then never finish to load all web contents. This is happening while the backup process is running in two clients or more. I have looked at performance monitor and see that the iSCSI drive is being used at 100% of the time.
It is normal that the interface of the server does not load? The server it is intalled and running inside other drive (not the backup drive).