0F48155 - WD Ultrastar 22 TB internal Memory, 3.5 Zoll, SATA

Data growth with a smaller footprint

The explosive growth in data due to AI/ML, 5G networks, IoT, connected vehicles and more is also causing data centres to grow. Innovations in hard drives make it possible to capture, store, analyse and protect much of this data. Higher capacity hard drives offer higher data density, enabling expanded and more efficient data centres.

22 TB for data centre expansion
The explosive growth of data through AI/ML, 5G networks, IoT, connected vehicles and more is also causing data centres to grow. Innovations in hard drives make it possible to capture, store, analyse and protect much of this data. Higher capacity hard drives offer greater data density, enabling expanded and more efficient data centres.

The Ultrastar DC HC570 22TB1 data centre hard drive with OptiNANDâ„¢ technology represents the next breakthrough in data density. This 22 TB data centre drive enables an incredible 22.44 PB of raw storage in a typical rack3. This higher volume density enables data centres to maximise their storage space, especially in space and power-constrained environments.

The Ultrastar DC HC570 combines several industry-leading technologies in a 10-carrier CMR drive, delivering the performance, quality and reliability that data centre customers demand.

Low power consumption for lower operating costs
Ultrastar drives are designed for optimal performance across a wide range of workloads. The DC HC570 is characterised by low power consumption for sequential read/write workloads and various random read/write workloads.

Benefits of OptiNAND technology
The Ultrastar DC HC570 is the 2nd generation platform withOptiNAND technology. The Ultrastar DC HC570 is the 2nd generation platform with OptiNAND technology that combines an iNAND® Universal Flash Storage (UFS) Embedded Flash Drive (EFD) with the proven spinning storage media.

Western Digital's market-leading storage density of the 2.2TB hard drive is extended to a new 10-carrier platform that offers 22TB capacity in CMR recording format. More volumes and high storage density maximise data storage efficiency.

OptiNAND improves the drive's resilience 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.

ArmorCacheâ„¢ is an OptiNAND enabled feature that combines the performance of Write Cache Enabled (WCE) mode with the data protection of Write Cache Disabled (WCD) mode to provide the best of both worlds. When operating in WCE mode, ArmorCache ensures that the DRAM cache is written safely in the event of an EPO and that no data is lost. When operating in WCD mode, the drive ensures that all user data in the DRAM is safely written in the event of an EPO. The drive operates with WCE-equivalent performance. Performance and data protection are now identical in WCE and WCD mode.

Proven reliability and quality when processing large amounts of data
The Ultrastar DC HC570 meets the reliability requirements of modern data centres with 2.5 million hours MTBF2 (estimated). It is performance-optimised for demanding applications and workloads of up to 550 TB per year. It has security and encryption features that protect data from unauthorised access and is available as an SED version.

The Ultrastar DC HC570 hard drive from Western Digital offers very high storage capacity with the best price-performance ratio for your data centre.

Technical data
- Capacity 22TB
- Form factor 3.5-Inch
- Connector SATA
- Interface SATA
- Transfer Speed up to 291MB/s
- Disk Speed (RPM) 7200 RPM
- Recording Technology CMR
- Cache Size 512MB
- Security SE
- Dimensions (L x W x H) 147mm x 101.6mm x 26.1mm
- Weight 670gms
- Model Number 0F48155
- Operating Temperature 5°C to 60°C
- Non-Operating Temperature -40°C to 70°C
- Hard Drive 3.5"

Product Features
- 22 TB storage capacity in a standard 3.5-inch form factor
- OptiNANDâ„¢ technology for highest capacities, with ArmorCacheâ„¢ for enterprise power protection and performance
- Reliable and proven technology in the 8th generation HelioSeal® product generation. HelioSeal® product generation
- Low power consumption for common sequential and random read/write workloads in data centres
- Industry-leading HDD technologies; ePMR, Triple-Stage Actuator (TSA), HelioSeal
- 2.5 million hours MTBF (estimate)
- Self-encrypting (SED) versions