Description

WD Ultrastar DC HC320 8TB SAS 12Gb/s 3.5" 512e Hard Drive | HUS728T8TAL5204

Key Benefits

• 8TB capacity in a standard 3.5" form factor: Ideal for servers and disk arrays where an optimal balance between storage capacity and drive count is required.

• SAS-3 12Gb/s interface: Enterprise-grade connectivity for server controllers and RAID systems.

• 7200 RPM and 256MB cache: Fast data access and reliable performance for random and sequential operations.

• Enterprise-class reliability: 2,000,000-hour MTBF, 24/7 operation, and an annual workload rating of up to 550TB.

• Rebuild Assist: Helps reduce RAID array rebuild times and maintain more consistent performance during the rebuild process.

Technical Specifications

Parameter	Value
Manufacturer	Western Digital (Ultrastar, formerly HGST)
Series	Ultrastar DC HC320
Model	HUS728T8TAL5204
Manufacturer Part Number (MPN)	0B36400
EAN	3807000013163
Capacity	8TB
Form Factor	3.5" (LFF)
Interface	SAS-3, 12Gb/s
Rotational Speed	7200 RPM
Cache (Buffer)	256MB
Sector Format	512e (Advanced Format)
Maximum Media Transfer Rate	Up to 255MB/s
Average Latency	4.16ms
Average Seek Time	8ms
MTBF	2,000,000 hours
Workload Rating	Up to 550TB per year
Unrecoverable Errors	1 per 10¹⁵ bits read
Operating Mode	24/7
Idle Power Consumption	8.4W
Security	Secure Erase (SE), no hardware encryption
Recording Technology	Conventional Magnetic Recording (CMR)

 

Technologies and Innovations

• Rebuild Assist: Accelerates RAID array rebuilds and helps minimize performance degradation.

• Rotational Vibration (RV) Compensation: Maintains stable operation in densely populated, multi-drive enclosures.

• Micro Actuator: Improves read/write head positioning accuracy.

• Media Cache and Non-Volatile Cache: Support performance and data protection during write operations.

• Next-generation improvement over the Ultrastar 7K6000: Offers 33% more capacity and up to 12% higher performance.

Product Description

When a server or storage array requires additional capacity without compromising reliability, the WD Ultrastar DC HC320 8TB is a compelling choice. Designed for continuous 24/7 operation, this enterprise-class hard drive supports an annual workload of up to 550TB.

The SAS 12Gb/s interface, 7200 RPM rotational speed, and 256MB cache provide fast, consistent data access, with media transfer rates of up to 255MB/s. Rebuild Assist helps shorten RAID array rebuild times, reducing the risks and downtime associated with drive replacement.

The micro actuator and rotational vibration compensation technology ensure precise head positioning, even in densely populated, high-demand drive enclosures. An MTBF rating of 2 million hours and an unrecoverable error rate of 1 per 10¹⁵ bits read further underline the drive's enterprise-class design.

The Secure Erase (SE) feature enables secure data erasure when the drive is decommissioned. The 512e sector format provides compatibility with a broad range of systems and applications.

The drive is suitable for servers, RAID arrays, block and file storage systems, virtualization environments, and enterprise archiving. The manufacturer's five-year warranty provides additional peace of mind for your IT infrastructure.

Ideal Applications

• Servers and RAID storage arrays

• Block and file storage systems

• Distributed and scalable storage environments

• Virtualization and enterprise archiving