EPA Moves on Energy Star Data Center Storage, Computer Server Specifications
The EPA released draft Energy Star specifications for data center storage systems and computer servers. Many aspects remained unaddressed in the first draft of version 1.0 of the data center storage specification, the agency said, and the document reflects the agency’s “latest thinking” based on stakeholder input. The first draft of version 2.0 of the specification for computer servers represents EPA “intended” tier 2 requirements in version 1.0 of the specification. The deadline for comments on both the documents is May 21.
The storage specification applies to a “fully-functional storage system that supplies data storage services to clients and devices attached directly or through a network.” Excluded from the specification are personal or portable data storage products, computer servers, computers, including desktops, laptops, small workstations, thin-clients and game consoles, and data center network gear. The specification aligns definitions with the Storage and Network Industry Association dictionary and proposes additional terminology, including a proposed storage product definition, for review and comment.
The storage draft covers power supply efficiency rules. Considering that power supply units (PSU) are often installed in “redundant configurations,” the EPA “intends to focus its efforts on encouraging” the use of power supplies that are most efficient at low loads and the “right sizing” of the units to “application requirements,” the agency said: “EPA’s initial approach is to require that all storage product PSUs, including those used to power both spinning disks and controllers, meet Energy Star qualification criteria."
Blade servers have been incorporated into the computer server specification. The Energy Star criteria for pedestal and rack-mounted servers will apply to blade servers, the agency said. Power supply efficiency and power factor requirements are the same as in the preliminary draft, the agency said, and “net power loss” has been removed from draft one. The agency’s goals for the draft include providing an update on efforts to develop a “specialized efficiency rating tool,” and set testing criteria and conditions for blade servers, the EPA said.