The 22TB Ultrastar DC HC570 7200 rpm SAS-3 3.5" Internal Data Center HDD from Western Digital is a high performance, large capacity drive designed for cloud and hyperscale storage, massive scale-out (MSO), high-density data centers, distributed file systems, bulk storage, big data analytics, and other demanding tasks that require 24/7 operation. This 7200 rpm drive utilizes the SAS-3 12 Gb/s interface for data transfer rates of up to 291 MB/s. Moreover, as a professional-grade drive, it has an MTBF rating of 2.5 million hours, 600,000 load/unload cycles, an annualized failure rate of 0.35%, and a workload rating of up to 550TB per year.
- 22TB capacity in a standard 3.5" form factor
- OptiNAND technology for highest capacities, with ArmorCache providing enterprise power loss protection and increased performance
- Reliable, field-proven, 8th Generation HelioSeal design
- Low power for common data center sequential and random read/write workloads
- ePMR, triplestage actuator (TSA), and HelioSeal technologies
- 2.5 million hours (projected) MTBF rating and a limited 5-year warranty
- Self-encrypting drive
- Cloud & hyperscale storage
- Massive scale-out (MSO), high-density data centers
- Distributed File Systems
- Bulk storage using object storage solutions like Ceph and OpenStack Swift
- Primary and secondary storage for Apache Hadoop for Big Data Analytics
The 22TB Ultrastar DC HC570 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 rack with 102 drives. 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 technologies on a 10-disk CMRdrive, delivering the performance, quality, and reliability that data center customers require.
Western Digital's 2.2TB/disk areal density leadership is extended to a 10-disk platform, delivering a 22TB capacity with CMR recording format. More disks and high area density work together to maximize data storage efficiency.
OptiNAND improves drive resiliency in the event of an emergency power off (EPO) byincreasing 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.