Pure Storage DirectFlash Shelves (DFS) are designed with high-efficiency, enterprise-grade power supply units (PSUs). These PSUs are "auto-ranging," meaning they can accept a wide range of input voltages, typically from roughly 90V to 264V AC.
While data centers often prefer 208V-240V power sources for better efficiency (less heat loss and lower amperage draw for the same wattage), the hardware is fully validated and supported to operate on standard 110V/120V circuits. There is no "temporary only" restriction or hardware lockout that prevents operation on 120V.
Therefore, if the customer's high-voltage PDUs are full, the Implementation Engineer can safely connect the DirectFlash Shelf to the available 120V outlets. The shelf will function normally, provided the circuit has sufficient amperage capacity (amps) to handle the slightly higher current draw that results from using a lower voltage. This configuration is supported for the entire service life of the shelf.
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