Storage Drives

20TB capacity with a reimagined HDD

An innovative storage architecture to help our customers meet their need for exponential data growth.

Reimagining the HDD to Meet the Growth of Data

Hyperscale cloud, CSPs, enterprises, smart video surveillance partners, NAS suppliers and more need storage solutions to meet the exponential growth in data creation. When it comes to cost-effective storage of data at scale, hard disk drives (HDDs) continue to play a central role. HDDs deliver the capacity, performance and reliability needed to store vast amounts of data today and well into the future. Investments in HDD technology remain critical to supporting worldwide data growth.

Western Digital has developed flash-enhanced drives with OptiNAND™ technology by vertically integrating our leading NAND flash with our world-class HDDs. Western Digital HDDs have been leaders in areal density with industry first technologies of energy-assisted magnetic recording technology (EAMR), triple-stage actuator (TSA), HelioSeal®, and now OptiNAND technology. Higher areal density means higher capacities to meet storage challenges.

20TB HDDs with OptiNAND Technology

OptiNAND integrates an iNAND® Universal Flash Storage (UFS) Embedded Flash Drive (EFD) with traditional spinning disk media, and incorporates innovative changes to the firmware algorithm and system-on-a-chip (SoC). OptiNAND is not a hybrid technology. The drive works smarter, with enhanced firmware algorithms taking advantage of expanded metadata that has been offloaded to the iNAND, enabling more tracks per inch (TPI) with resulting increased areal density.

The Ultrastar DC HC560, with the first implementation of OptiNAND technology's capacity-enabling features, delivers an unbeaten 20TB capacity in a nine-disk platform (2.2TB/platter) with CMR recording format.

20 TB of capacity with a reinvented HDD

Reinventing HDDs to

Keep Up with Data Growth Hyperscale cloud, CSP, enterprise, smart video surveillance partners, NAS vendors and many others need storage solutions to keep pace with the exponential growth of data generation . For large-scale, cost-effective data storage, HDDs remain a strategic choice. HDDs provide the capacity, performance and reliability you need to store large amounts of data, now and in the future. Investments in HDD technology continue to play a central role in supporting global data growth.

Western Digital has developed OptiNAND ™ technology for flash memory optimized drives, integrating leading NAND flash technology with our brand's exclusive HDDs. Western Digital HDDs lead the way in area density with industry-first energy-assisted magnetic recording (EAMR), three-stage actuator (TSA), HelioSeal® and now, OptiNAND technologies. Higher areal density equals higher capacities to meet storage challenges.

20 TB HDD with OptiNAND technology

OptiNAND integrates iNAND®, an Embedded Flash Drive (EFD) on Universal Flash Storage (UFS) with traditional rotating media, introducing innovative changes to the algorithm and firmware system-on-a-chip (SoC). OptiNAND is not a hybrid technology. The unit works smarter thanks to optimized firmware algorithms that leverage expanded metadata downloaded to iNAND, enabling more tracks per inch (TPI), which results in higher areal density.

The DC HC560 Ultrastar, applying the capabilities of OptiNAND technology for the first time, offers an unrivaled capacity of 20TB on a 9-disk platform (2.2TB / disk) with CMR recording format.

World's first 11-disk CMR HDD platform for increased storage density.

Ultrastar Data Center HC590 hard drives combine field-proven designs with the latest innovative technologies to meet data center demands for increased storage density in the existing storage footprint.

Future of More. Plus One

The world's first 11-disk CMR HDD platform delivers unbeaten capacity of up to 26TB to help quench customer's insatiable demand for increased storage density in the existing storage footprint.

Rapid Qualification and Rock Solid Reliability

Leveraging field-proven hardware and firmware designs from generations of highly successful products ensures easy qualification, seamless integration and rapid adoption while maintaining superior dependability and reliability.

Maximum Rack-Space Efficiency

The higher storage density provided by 11 disks combined with our energy-assisted Perpendicular Magnetic Recording (ePMR) technologies, which increase tracks-per-inch (TPI), allow data centers to maximize their storage efficiency.

Protected Against Vibration & Shock

Our exclusive Rotational Vibration Safeguard (RVS) uses dual sensors to anticipate and counteract disturbances, maintaining peak performance in high-vibration environments. Combined with Dynamic Fly Height technology, Western Digital offers exceptional drive reliability and protection from unexpected shock events.

Engineered with Industry-Leading Technology

Western Digital's proprietary OptiNAND™ technology leverages integrated iNAND® embedded flash to perform key housekeeping functions, freeing up more capacity and improving the overall drive performance.

Powerful Performance and Resiliency

Choose ArmorCache™ write cache disabled (WCD) mode for increased random write performance or select write cache enable (WCE) mode to protect cached data in case of Emergency Power Off (EPO) or unexpected power loss scenarios.

Meet Eco Goals with Helium

Choose ArmorCache™ write cache disabled (WCD) mode for increased random write performance or select write cache enable (WCE) mode to protect cached data in case of Emergency Power Off (EPO) or unexpected power loss scenarios.

Trusted Reliability, Quality and World-Class Support

As an industry-leading hard drive manufacturer, Western Digital stands behind their Ultrastar hard drives with the assurance of a projected 2.5M-hour MTBF rating, a 5-year limited warranty and world-class support services to help create environments for data to thrive.

22TB to Fuel Data Center Expansion

The explosive growth of data from AI/ML, 5G networks, IoT, connected vehicles, and more is fueling growth in data centers. HDD innovation drives the ability to capture, store, analyze, and protect much of this data. Higher-capacity HDDs deliver higher data density, enabling data center expansion and efficiency.

The Ultrastar® DC HC570 22TB data center HDD with OptiNAND™ technology is the next leap in data density. This 22TB data center HDD enables an incredible 22.44PB of raw storage in a typical rack. This higher volumetric density allows data centers to maximize their storage, especially in footprint- and power-constrained environments.

The Ultrastar DC HC570 combines several industry-first technologies on a 10-disk CMR drive, delivering the performance, quality, and reliability that data center customers require.

Low Power for Lower Operating Costs

Ultrastar HDDs are designed for optimal power over a variety of workloads. The DC HC570 features low power sequential read/write and mixed random read/write workloads.

OptiNAND Technology Benefits

The Ultrastar DC HC570 is the 2nd-generation platform with OptiNAND technology, which integrates an iNAND® Universal Flash Storage (UFS) Embedded Flash Drive (EFD) with traditional spinning disk media.

Western Digital's 2.2TB/disk areal density leadership is extended to a new 10-disk platform, delivering 22TB capacity with CMR recording format. More disks and high areal density work together to maximize data storage efficiency.

OptiNAND improves drive resiliency in the event of an emergency power off (EPO) by increasing the amount of non-volatile memory (NVM) available to flush critical metadata to the iNAND. ArmorCache™ is a feature enabled by OptiNAND that combines the performance of write cache enabled (WCE) mode and the data protection of write cache disabled (WCD) mode, offering the best of both scenarios. When operating in WCE mode,

ArmorCache ensures that the DRAM cache will be safely written in event of an EPO and no data is lost. When operating in WCD mode, the drive will ensure that all user data in DRAM is safely written upon EPO, and the drive will operate with WCE-equivalent performance. Performance and data protection are now identical across both WCE and WCD modes.

Trusted Reliability and Quality for Data at Scale

The Ultrastar DC HC570 meets modern data center reliability requirements with 2.5M MTBF (projected) and a 5-year limited warranty. It is performance-optimized for heavy application workloads and is designed to handle workloads up to 550TB per year. It offers security and encryption options to help protect data from unauthorized use, including SED models.

Trust Western Digital and the Ultrastar DC HC570 hard drive to deliver the highest capacity and greatest value for your data center.

24TB data center HDD with OptiNAND™ technology

The relentless growth of data means organizations must find ways to efficiently store ever more data. The Ultrastar DC HC580 24TB HDD with improved OptiNAND technology is the next step in high-capacity hard drives, allowing data centers to maximize their storage, especially in footprint- and power-constrained environments.

Keep up with exponential data growth

The 24TB Ultrastar DC HC580 HDD with OptiNAND technology's capacity-enabling features provides more efficient storage on a 10-disk CMR drive, enabling you to store more in the same footprint

Innovative technologies for higher capacities

Improved OptiNAND technology, energy-assisted magnetic recording (EAMR), triplestage actuator (TSA), and HelioSeal enable high capacity with low power

Performance and protection

ArmorCache is a feature enabled by OptiNAND that offers higher performance in write cache disabled mode and provides enterprise power loss protection in write cache enabled mode

Designed for data center workloads

The Ultrastar DC HC580 is performance-optimized to handle heavy application workloads of up to 550TB per year.

Built with reliability in mind

This robust drive delivers dependability in intense data center environments with up to 2.5M hours MTBF (projected).

Quality and security

Provides additional peace of mind with a 5-year limited warranty