Western Digital introduced 20TB HDD models!

Western Digital (WD), one of the world’s largest disk manufacturers, introduced Hard Disk Drive (HDD) models with a capacity of 20TB. The company’s newly equipped Ultrastar DC HC560 and WD Gold hard drives are equipped with OptiNAND technology, which integrates and optimizes HDDs with iNAND embedded flash drives. reliability and performance increases compared to standard discs.


Western Digital introduces next-generation OptiNAND technology

Western Digital introduced its next-generation OptiNAND technology, which combines and strengthens HDD and flash technologies.

20TB WD Ultrastar DC HC560 and WD Gold features

Both 3.5-inch hard drives are supported by Western Digital’s OptiNAND technology introduced in August. OptiNAND; iNAND UFS enables onboard flash drive (EFD) to be integrated with traditional spinning structure disks. Thus, per plate 2.2TB storage A total of 20 TB nine plates are packaged.

wd 20tb hard disk

both 20TB Ultrastar DC HC560 as well as 20TB WD Gold HDDIt comes with Energy Assisted Vertical Magnetic Recording (EAMR) support, HelioSeal technology, and a three-stage actuator (TSA) structure to reduce air friction on turntables.

Western Digital has announced that 20TB HDD models with 7200 RPM to 269MB/s announced that it supports sustainable transfer rates up to The average latency is 4.16 ms shared his knowledge. WD also details the power consumption of the Gold 20TB and Ultrastar DC HC560 models. 7W in working mode; 6W in idle mode he said he was consuming.

What does OptiNAND technology do?

OptiNAND’s primary goal is to increase reliability and meet purpose-built needs by offering higher capacities. To summarize the technology briefly;

  • Capacity: The drive works smarter with advanced firmware algorithms that take advantage of the expanded metadata loaded into the iNAND. Thus, it provides an increased areal density by providing more tracks per inch (TPI).
  • Performance: Driver latency has been improved with significant and specific optimizations to be able to use firmware focused on requiring less contiguous trace interference (ATI) refreshes and reducing the need to clear the write cache while the write cache is in active mode.
  • Reliability: It can keep about 50 times more data in case of emergency power outage (EPO) scenario.

As for the prices; 20TB capacity WD Gold model is $679 (tax-free) 7.038.93 Turkish Lira) It will be on sale with a price tag. The price of the Ultrastar DC HC560 has not been announced yet.

Technicial Specifications WD Gold Ultrastar DC HC560
Capacity 20TB 20TB
cache 512MB 512MB
Interface SATA SATA
Disk Speed ​​(RPM) 7200rpm 7200rpm
Compatibility Windows, Linux Windows, Linux
Dimension 3.5 inch 3.5 inch

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