Migrate EV Archived Data to new Storage on different DC

Dear all,

What would be the best way to migrate Enterprise Vault to a new infrastracture? The main part I am concern is how to move 20 TB of archived data from the actual Storage to a new one in another datacenter. We have NBU 7.6 with only FS agents, so would it be possible to backup this data to tape with the regular FS agent and then recover it in the new environment?

Thanks in advanced