WD Ultrastar DC HC570 22TB 3.5-inch SAS 12Gb/s 7200 RPM Enterprise Nearline HDD

The WD Ultrastar DC HC570 is a 22TB enterprise nearline hard disk drive engineered for demanding datacenter and hyperscale storage environments. Built on Western Digital's ninth-generation HelioSeal platform, the drive is hermetically sealed with helium to reduce internal turbulence, lower operating power, and enable the high platter density required to achieve 22TB of raw capacity in a standard 3.5-inch form factor. The SAS 12Gb/s interface delivers dual-port connectivity for high availability configurations, making the HC570 well suited to enterprise storage arrays, RAID systems, and JBOD enclosures where path redundancy is operationally critical.

The HC570 spins at 7,200 RPM and incorporates a 512MB cache buffer to sustain throughput during sequential and mixed workloads. Western Digital rates the drive for a workload of 550TB per year (annualized workload rate), reflecting its positioning for write-intensive nearline applications rather than archival-only duty cycles. The drive carries an MTBF rating of 2,500,000 hours and supports advanced error recovery and data integrity features including T10 Protection Information (PI) in 512e and 4Kn sector configurations, depending on the specific variant. The WUH722222AL5204 variant implements 512e logical sector sizing over the SAS 12Gb/s interface.

Designed with AI infrastructure, large-scale object storage, and high-capacity NAS and SAN deployments in mind, the Ultrastar DC HC570 is compliant with RoHS directives and supports industry-standard management interfaces including SCSI command sets. Its combination of high areal density, dual-port SAS connectivity, and enterprise-grade reliability specifications positions it as a foundational storage component for organizations building out petabyte-scale capacity tiers across UAE, GCC, EMEA, and APAC datacenters.

Ideal for

• Hyperscale and cloud datacenter capacity-tier storage requiring high per-drive density to minimize rack footprint and power consumption
• AI and machine learning training infrastructure where large sequential dataset ingestion benefits from sustained 7,200 RPM throughput and a high annualized workload rating
• Enterprise SAN and NAS arrays utilizing dual-port SAS 12Gb/s for high-availability multipath I/O configurations
• Large-scale object storage platforms such as Ceph, MinIO, or OpenStack Swift, where nearline HDDs form the primary storage tier
• Backup, restore, and disaster recovery vaults requiring high-capacity drives with enterprise reliability ratings to store critical organizational data
• Media and entertainment post-production storage workflows involving large uncompressed or high-bitrate video files that demand sequential throughput and sustained capacity

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.