The Solid State Storage System (S4) TWG was created for the purpose of addressing the unique performance behavior of solid state storage systems. The TWG creates specifications which provide guidance to accurately measure the performance of enterprise arrays as oppose to devices. These specifications are vendor agnostic and support all the solid state storage system technologies of member companies.

The S4 TWG:

• Acts as the primary technical entity for the SNIA to identify, develop, and coordinate system performance standards for solid state storage systems
• Produces a comprehensive set of specifications and drives consistency of measurement guidelines and messages related to solid state storage systems
• Documents system–level requirements and shares these with other performance standards organizations under the guidance of the SNIA Technical Council and in cooperation with the SNIA Strategic Alliances Committee