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posted by Fnord666 on Thursday September 12 2019, @10:20AM   Printer-friendly
from the more-bytes dept.

https://www.anandtech.com/show/14861/western-digital-reveals-20-tb-hdd-a-halo-product-for-datacenters

As operators of cloud datacenters need more storage capacity, higher capacity HDDs are being developed. As data hoarders need more capacity, higher capacity HDDs are needed. Last week Western Digital introduced its new Utrastar DC HC650 20 TB drives - hitting a new barrier in rotating data.

The drives feature shingled magnetic recording (SMR) technology, which layers data on top of another much like a shingled roof, and therefore is designed primarily for write once read many (WORM) applications (e.g., content delivery services). Western Digital's SMR hard drives are host managed, so they will be available only to customers with appropriate software.

Western Digital's Utrastar DC HC650 20 TB is based on the company's all-new nine-platter helium-sealed enterprise-class platform, a first for the company. The new 3.5-inch hard drives feature a 7200 RPM spindle speed and will be available with a SATA 6 Gbps or SAS 12 Gbps interface depending on the SKU. Since the product is not expected to be available immediately, the manufacturer does not disclose all of its specifications just yet, but has stated that key customers are already in the loop.


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  • (Score: 0) by Anonymous Coward on Thursday September 12 2019, @05:54PM (2 children)

    by Anonymous Coward on Thursday September 12 2019, @05:54PM (#893242)

    I remember reading about some people using LTFS [wikipedia.org] on SMR drives [snia.org]

  • (Score: 2) by DannyB on Thursday September 12 2019, @07:45PM (1 child)

    by DannyB (5839) Subscriber Badge on Thursday September 12 2019, @07:45PM (#893290) Journal

    That seems like it would not offer good random access read of files.

    --
    To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.
    • (Score: 0) by Anonymous Coward on Thursday September 12 2019, @08:33PM

      by Anonymous Coward on Thursday September 12 2019, @08:33PM (#893323)

      LTFS has some kind of index for searching and seek the files you are looking for, a great advantage to just wind the full tape. As the application were store and rarely read, this approach has some advantage from a some very particular point of view. In hard drives should be much faster than on tape.