Decommission

Overview
U.S. federal agencies may choose to decommission their underutilized physical servers as a part of their data center consolidation plans. Agencies can also choose to decommission an entire data center by moving to an outsourced data center or reducing the number of physical assets.

Source

 * Data Center Consolidation: Agencies Need to Complete Inventories and Plans to Achieve Expected Savings, at 65.