NEtBackup and hotadd

I have a problem with hotadd.

There is a way to limit the number of disk that can be added to a host?

The backup policy can limit only the number of the virtual machines that can be backupped at the same time, but I have many virtual machine with more that one disk. In this case netbackup try to add too many disks on the same media server and the backup crash. I've tried to add more controllers but the problem remains.

I would like to limit the number of disk that can be added. There is a way to do it?

Thanks,

Max