Western Digital Ultrastar DC HC570 22TB - 7200 RPM 512MB SAS 12Gb/s Enterprise HDD - WUH722222AL5204 (Bulk)
The Western Digital Ultrastar DC HC570 22TB (WUH722222AL5204) is a high-capacity enterprise HDD designed for cloud-scale storage. Featuring OptiNAND technology, a 10-disk HelioSeal design, and a SAS 12Gb/s interface, it delivers reliable 7200 RPM performance for demanding data center workloads.
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Discontinued
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| Storage (SSD & HDD) - Device Type | Internal HDD |
|---|---|
| Storage (SSD & HDD) - Capacity | 22TB |
| Storage (SSD & HDD) - RPM (HDD) | 7200 RPM |
| Storage (SSD & HDD) - Interface | SAS 12Gb/s |
| Storage (SSD & HDD) - Cache (HDD) | 512MB |
| Storage (SSD & HDD) - Heatsink (SSD) | Not Included |
| Storage (SSD & HDD) - Form Factor | 3.5 inch |
The Western Digital Ultrastar DC HC570 22TB Enterprise HDD is engineered to meet the explosive demand for storage in modern cloud and hyperscale data centers. Built on a proven 10-disk helium-sealed platform (HelioSeal), this drive integrates Western Digital's innovative OptiNAND technology to deliver massive capacity with improved performance and resiliency. It is specifically designed for massive scale-out (MSO) environments, big data analytics, and distributed file systems where density and power efficiency are critical.
Delivering consistent enterprise-class performance, the DC HC570 operates at 7200 RPM with a large 512MB cache and a SAS 12Gb/s interface, achieving sustained transfer rates of up to 291 MB/s. It incorporates Energy-Assisted Magnetic Recording (ePMR) and a Triple Stage Actuator (TSA) for precise data accuracy. With a robust workload rating of up to 550TB per year and a 2.5 million hour MTBF, this drive ensures 24/7 reliability for mission-critical infrastructure.
- Massive Capacity: 22TB of storage utilizing OptiNAND and 10-disk HelioSeal technology.
- High Performance: 7200 RPM spindle speed with a 512MB buffer for efficient data access.
- Enterprise Interface: SAS 12Gb/s connection for high-throughput data center integration.
- Advanced Reliability: Rated for a 550TB/year workload and 2.5 million hours MTBF.
- Data Protection: Features ArmorCache technology for write cache data safety during power loss events.
| HDD capacity | 22 TB |
| HDD speed | 7200 RPM |
| Interface | SAS 12Gb/s |
| Storage drive buffer size | 512 MB |
| Form factor | 3.5 inch |
| Transfer rate (sustained) | 291 MB/s |
| Format | 512e / 4Kn |
| Mean time between failures (MTBF) | 2500000 h |
| Workload rate limit | 550 TB/year |
| Average latency | 4.16 ms |
| Technology | OptiNAND, HelioSeal, ePMR |
| Power consumption (operating) | 9.6 W |
| Power consumption (idle) | 6.0 W |
| Operating temperature | 5 - 60 °C |
| Width | 101.6 mm |
| Height | 26.1 mm |
| Depth | 147 mm |
| Weight | 670 g |