My SQL backup

HI I have Linux client Linux 2.6.32-220.e16.x86-64, NBU 7.6

My SQL version 14.14 Distrib 5.1.61 is running on it. 

Master and media @ NBU 7.6.0.3, SOlaris 10.

I need to take backups of my SQL DB, is Zamanda only way to take online backups ?