I am the President of Coughlin Associates and a storage analyst and consultant. I have over 40 years in the data storage industry with multiple engineering and management positions. I have many publications and six patents to my credit.
The hard disk drive industry is gearing its products to meet the needs of high-capacity low-cost storage for enterprise and data center applications as well as some video surveillance applications. SSDs have largely replaced HDDs in personal computing applications and consumer applications such as DVRs are giving way for many consumers to online streaming applications served from content delivery networks associated with content stored in data centers.
The new Ultrastar HDDs include WDC’s ePMR, OptiNAND™, ArmorCache™ and a triplestage actuator . The company also announced that these Ultrastar HDDs are being qualified in the company’s Utrastar Data60 and Data102 JBOD hybrid storage systems, which can deliver up to 3.26PB of raw storage capacity and feature IsoVibe and ArcticFlow technologies to reduce system vibration and temperature hot spots.
WDC said that it achieved 11 disks in a conventional HDD form factor by reducing the disk to disk spacing, rather than the thickness of the disks. The WDC 32Tb HDD probably uses aluminum alloy disk substrates like prior WDC data center HDDs. This allows the company to preserve the stiffness of the aluminum alloy disks and thus avoid some mechanical issues.
SMR HDD 32TB Ultrastar DC HC690 Seagate Toshiba Shingled Magnetic Recording Hoya Aluminum Glass
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