Western Digital Designs High-Bandwidth HDDs That Quadruple I/O Speeds
Western Digital has today presented its latest effort to catch up with traditional QLC NAND Flash SSDs by improving its HDD offerings. With the latest High-Bandwidth HDDs, Western Digital has implemented two new technologies in a classical multi-platter HDD design. The first innovation comes in a form of High Bandwidth Drive Technology, which enables double the I/O bandwidth with a path to 8x the current bandwidth in the future. It relies on simultaneous reading and writing from multiple heads on multiple tracks, which is already in customer hands for validation. The second one is Dual Pivot Technology that introduces a second set of independent actuators on a separate pivot, which will not scarify drive capacity unlike older dual actuator designs.
Using Dual Pivot Technology, HDDs can pack more drive platters in a standard 3.5-inch body for higher capacities, and the performance grows by an additional 2x, which is 4x I/O bandwidth compared to today's drives. This technology will pave the way for 100 TB HDDs, that offer speeds comparable to QLC SSDs, at much better price/performance ratio and better data retention, prompting the massive boom of HDD development. Western Digital's drives with High Bandwidth Drive Technology are already shipping to customers, while drives with Dual Pivot Technology are in development in Western Digital's labs and are scheduled to become available in 2028, with early customer sampling probably much sooner.
Using Dual Pivot Technology, HDDs can pack more drive platters in a standard 3.5-inch body for higher capacities, and the performance grows by an additional 2x, which is 4x I/O bandwidth compared to today's drives. This technology will pave the way for 100 TB HDDs, that offer speeds comparable to QLC SSDs, at much better price/performance ratio and better data retention, prompting the massive boom of HDD development. Western Digital's drives with High Bandwidth Drive Technology are already shipping to customers, while drives with Dual Pivot Technology are in development in Western Digital's labs and are scheduled to become available in 2028, with early customer sampling probably much sooner.


















































