WD Ultrastar DC HC320 8TB SATA Hard Drive - 0B36404

6Gb/s SATA-III, 3.5" form factor, 256MB cache, 7200rpm, 5 year manufacturer warranty.
Manufacturer: Western Digital
SKU: HDI0B36404

Economics and 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.

Technology Innovation Delivers Efficiency and 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 nonvolatile
cache (NVC) on both SATA and SAS 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 MTBF2 rating and a 5-year limited warranty.

• Excellent random and sequential performance
• 8TB capacity point supports traditional IT systems
• Sustained transfer rate up to 255MB/s
• Advanced Format 4Kn and 512e models
• Self-Encrypting Drive (TCG SAS) options
• 5-year limited warranty

Applications & Workloads
• Distributed file systems to support Big Data analytics
• Direct & Network Attached Storage (DAS & NAS)
• RAID arrays

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