WD Ultrastar DC HC320 8TB 3.5" SATA HDD/Hard Drive

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Economics & Access Speed: Key Requirements for Low Capacity HDDs in the Data Center

As the industry evolves to develop purpose-built solutions for growing data storage requirements, IT managers continue to rely on lower capacity drives that are economical to acquire, yet deliver quick and reliable data access for traditional data center applications. Designed to handle workloads up to 550TB per year, Ultrastar® DC HC320 is an 8TB HDD that helps address economic and access requirements of many traditional IT workloads. Low capacity drives also help address architecture limitations. Part of our mid-capacity DC HC300 series, the Ultrastar DC HC320 is designed for traditional storage and server applications as well as distributed and scalable computing, including block and file storage architectures, providing fast 7,200 RPM performance and lower acquisition cost to help ease budget constraints. Ultrastar DC HC320 comes with a 6Gb/s SATA interface in the 512e format.


Technology Innovation Delivers Efficiency & Performance for Traditional IT Systems

Ultrastar DC HC320 is based on a proven 5-disk air platform design that uses conventional magnetic recording (CMR) technology in a 3.5-inch large form factor. Compared to the prior generation, Ultrastar 7K6000, the DC HC320 delivers 33% more capacity, up to 12% performance boost and uses slightly larger-diameter media. It features a second-generation, dual-stage micro actuator to enhance head positioning accuracy for better drive performance. Write performance gains are also supported by Western Digital’s media cache architecture, a disk-based caching technology that provides a large cache area on the disk, which also improves reliability and data integrity during unexpected power loss. Finally, the addition of flash-based non-volatile cache (NVC) on SATA models helps improve write performance. The Ultrastar DC HC320 also includes a Rebuild Assist feature, which helps dramatically reduce RAID rebuild times and maintain system performance during the rebuild process.


Data Security with Trusted Quality, Reliability

Compliance and privacy requirements drive the need for increased data security. Ultrastar DC HC320 helps protect data from unauthorized use by offering security and encryption options. The Ultrastar DC HC320 extends Western Digital’s long-standing tradition of reliability leadership with a 2M-hour MTBF rating and a 5-year limited warranty.


Features
• 8TB: Lower capacity point for traditional IT workloads and applications.
• Advanced Format: Enables higher capacity and reliability.
• Non-Volatile Cache (NVC): Improved write performance and write splice protection.
• Up to 255MB/s Transfer Rate: Up to 12% faster than Ultrastar 7K6000.
• Dual-Stage Micro Actuator: Better head positioning and rotational vibration robustness.
• 2M Hours MTBF & 0.44% AFR: One of the highest reliability ratings for air-filled Capacity Enterprise HDDs.
• 5-Year Limited Warranty: Enterprise-class warranty rating.
Capacity 8000 GB
Edition Ultrastar DC HC320
Form Factor 3.5"
SSHD No
Flash Memory Size N/A
Flash Memory Type N/A
Height 26.1 mm
Rotation Speed 7200 rpm
Sector Size 512E
Cache 256MB
Access Time 4.16 ms
Host to/from Drive Sustained Transfer Rate 255 MB/s
Interface SATA 3.0 (6Gb/s)
Load/Unload Cycles 600,000
Annualised Workload Rating 550 TB/yr
Non-Recoverable Read Errors per Bits Read <1 in 10^15
Max. Operating Shock 30 G
NCQ Yes
Max.Power Usage 8.8 W
Dimensions 101.6 x 26.1 x 147 (WxHxD mm)
Package Type OEM