With solid-state drives (SSDs) entering value and mainstream price segments, and the transition in consumers' data-storage behavior from local storage to the cloud, there is expected to be a dramatic fall in shipments of hard disk drives (HDDs) in 2019. Japanese company Nidec, which manufactures nearly 85% of all DC motors for use in HDDs across the industry, estimates a nearly 50 percent drop
in HDD shipments for 2019. Since these motors are specifically designed for use in HDDs, it is directly proportional to new HDD shipments, thus presenting a reliable outlook of the HDD industry itself. The DC motor inside HDDs is a non user-replaceable component as detaching it involves opening the seal of the disk chamber, thereby contaminating it.
In 2010, Nidec shipped nearly 650 million motors, which dropped significantly down to 375 million motors in 2018, indicating the sharp decline in the HDD industry. While Nidec will ship as few as 290 million motors in 2019, it estimates shipments of HDDs to go down by nearly 50 percent year-over-year (YoY). Data centers are swallowing up large volumes of high-capacity (>10 TB) HDDs for warm- and cold-storage even as SSDs and DRAM are sought for hot-storage. The client-segment, however, is now firmly captivated with SSDs, with even mainstream laptops packing SSDs. Prominent HDD manufacturers Seagate, Western Digital, and Toshiba, have each invested heavily in building up SSD product lines, and specializing their HDD portfolio for enterprise and quasi-enterprise (eg: NAS, NVR, high-uptime client) markets.