Western Digital Starts Shipping World’s First 20TB SMR and 18TB CMR Hard Disk Drives to Enterprise OEMs

by dhiram


Western Digital announced today that it has started shipping the industry’s highest-capacity HDD samples to enterprise OEMs and hyperscale customers worldwide. The 20TB Ultrastar DC HC650 SMR HDDs and 18TB Ultrastar DC HC550 CMR HDDs announced in September 2019, featuring its first-ever commercial implementation of energy-assisted magnetic recording technology on a nine-disk platform, enabling customers to more efficiently provision and scale their data center environments with an unmatched total cost of ownership. Western Digital’s innovative Helio Seal technology hermetically seals the HDD and replaces the air inside with helium, which is one-seventh the density of air. The less-dense atmosphere resets the boundaries and challenges of conventional high-capacity HDDs, allowing for dramatic increases in efficiency, reliability, and value.


The industry-leading capacities of Western Digital’s Ultrastar 20TB SMR and 18TB CMR HelioSeal HDDs enable customers to deploy up to 22 percent fewer racks and reduce their TCO by up to 11 percent, along with the corresponding reductions in power consumption, cooling costs, and data center infrastructure needs when compared with today’s 14TB CMR HDDs. Together with the company’s HelioSeal and SMR technologies, triple-stage micro actuation and 9-disk platform, the energy-assisted recording technology provides an integrated solution, resulting in the dramatic gain in drive capacities.

Leave a comment