Netbackup 7.1 on VCS 6.0

Hi,

We have installed a new Netbackup Master 7.1 in a two node VCS 6.0 cluster on a Solaris 10 T4 Server.

Our Existing clients are talking to a 6.5.4 Master.  We are planning to shutdown the 6.5.4 master and powerup the 7.1 Master Server.

My query here is do we need to update all the NBU Clients host file with the physical cluster hostnames and IP addresses?