Back in February, Dell revealed its intentions to enter the ARM server field. Today, the company announced that it is shipping ARM-based Copper servers to a limited number of customers. Copper is lower power than x86 servers, and Dell thinks this makes it a good fit for energy-intensive platforms such as Hadoop. In that same vein, the company views Copper as a cost-effective option that can be used for light workloads and for testing performance. In addition to deploying its new servers to select clients, Dell will be looking to the open source community for help in further developing its ARM system (the platform currently runs Linux). No word on when Copper will move beyond the testing phase.