THG Pushes Broadcom's RAIDCore Storage Controller Envelope

Supermicro X5DPE-G2's Mobo

In order to fully use the combination of 8 x 4 SATA drives, high-performance architecture is needed. All Broadcom RAIDCore controllers contain a PCI-X interface, which can operate with up to a 133 MHz clock rate. That leads to a maximum bandwidth of 1 GB/s, which today's drives certainly cannot attain. A 60 MB/s per drive bandwidth is realistic. In theory, that adds up to 480 MB/s. But in normal, everyday scenarios, this figure cannot quite be reached (yet).

For this project, we needed two PCI-X bridges. Only that way was it possible to have sufficient bandwidth available for all four controllers.

Patrick Schmid
Editor-in-Chief (2005-2006)

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.