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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.
(Score: 4, Funny) by DannyB on Thursday September 12 2019, @03:01PM
You seem to be missing the primary intended applications for this drive.
It offers sufficient capacity to have usable space left after installing Windows.
It offers capacity to keep redundant copies of files on the same drive. That way if you suffer a drive failure, you're protected.
If you really must use this drive in a RAID configuration, then use two drives: one drive holds the zeros, and the other holds the ones. Now if one drive in the RAID fails, it is very easy to swap in a replacement filled with either zeros or ones.
To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.