Backup Multiple EV Servers under same site EV 10.0.1

Hi,

Need some help setting up Backup Multiple EV 10.0.1 Servers under same site using either PowerShell script or NetBackup agent.

For example if we have 4 x EV Servers - 2 x Mailbox archiving and 2 x FSA Archiving under same site.

Any good guide available on how to configure and run backups if you have multiple EV Servers?

Many Thanks