NBU master server CPU 100% usage

Hi Team,

We have NBU 7.6.0.3 hosted on Windows 2008 R2 Enterprise edition with SFWHA we run about 12000 jobs on master server, the infra has both Tape library and DD.

We are recently observing that the CPU usage on master server is about 100% during backup window.

We are now getting lot of SQL backup failures due to this.

Is it normal NBU behaviour or is it overloaded , is there a way to tackle this.

Kindly Help.

Bshet