Netbackup 7.6 Master Server Requirements

Hello Everybody

We are starting to migrate our Netbackup 6.5.6 Master Server (running in a Solaris 10 Sparc V490 Sun Server).

My questions are:

For a Netbackup 7.6 Mater Server, which hardware are required ? We have around 100 clients.

Which is the best options for the OS (Linux or Solaris).

If Linux, which distros (SuSE, RH, Oracle Linux) ?

Is better a physical or a virtual machine ?

Any another tips?

Thanks for now.

Alexandre Andrich