If this is not your field of expertise the you should not call Intel's
solution junk.

It will not help with disks. What it helps with is
applications that need properly independent random numbers often. A VPN
server is such a case, it needs a few bits every time a client opens a
connection and the clients may be enemies of each other, so it is
preferable that each user's session keys have absolutely no
relationship to those of other users. A VPN client does not have this
need.

Arnt