WD Ultrastar DC HC680 HDD Review | Enterprise-grade Efficiency

According to numbers from top businesses, companies are generating more data than previously estimated. This could be down to mulitple factors, chief among them being the speed of AI technology adoption in even tangentially related industries such as healthcare. As a result, storage solutions must provide not only extra room but also reliability. Western Digital's Ultrastar DC HC680 is aimed right at those needs. 

This enterprise hard drive is optimized not for gamers or everyday PC users, but for data centers and cloud providers—with AI workloads and large backup spaces in mind. It uses many cutting-edge technologies to offer large storage in a low-power operating environment and at relatively low cost.

Also, Western Digital has emphasized the drive's long-term reliability, and it can be used for 24/7 operation. Kicking off with the design, and then discussing features, performance, power efficiency, and any reliability questions we can think of for it.

Let's first talk about its key specifications before looking at how it actually performed in the real world.

• Up to 28TB storage capacity
• 3.5-inch enterprise hard drive
• SATA 6Gb/s and SAS 12Gb/s interface options
• 7200 RPM spindle speed
• 512MB cache
• HelioSeal helium-filled technology
• OptiNAND architecture
• Energy-Assisted PMR (ePMR)
• UltraSMR recording technology
• 24/7 enterprise operation
• 550 TB annual workload rating
• 2.5 million hours MTBF
• Five-year limited warranty
  
  

A standard enterprise hard drive, Western Digital Ultrastar DC HC680, at first sight. But most of that innovation is internal. Since it uses a familiar 3.5-inch size, installation is straightforward on enterprise servers, storage arrays, and rack-mount systems.

But more importantly, this is what we call a HelioSeal drive. The internal chamber is filled with helium and not air. Helium is less resistant, which causes the platters to spin more smoothly. This means the drive consumes less power, emits less heat, and is overall efficient for long-term operation.

It also feels extremely solid overall in terms of build quality. All parts are optimized for long-running workloads. This means that the company can guarantee years of continuous performance without worrying about daily wear and tear.

WD Ultrastar DC HC680[1] NVMe SSDs might offer raw speed, but large-capacity SATA alternatives like the WD Ultrastar DC HC680 completely outclass them. Still, for an enterprise hard drive, its performance is exceptional.

Sequential read and write speeds are consistent when transferring large files. Whether you're moving backup archives, surveillance video footage, or cloud storage data, the drive handles heavy workloads without noticeable slowdowns.

The large 512MB cache also helps make it more responsive during continuous operations. Western Digital utilizes a combination of OptiNAND, ePMR, and UltraSMR technologies to pitch increased storage density with reliable performance.

This is where the HC680 goes a step above the rest. Organizations need to store and index Petabytes of information, and they are large. Purchasing hundreds of smaller drives means more rack space, more cooling requirements, and higher power consumption. Well, the HC680 is here to solve that one, with a whopping 28TB of capacity in a single drive.

This is why cloud providers, hyperscale data centers, AI (artificial intelligence) companies, media organizations, and enterprise backup systems can minimize the overall number of drives required.

Ultrastar drives are one of the top options for businesses, namely because of their reliability. The HC680 has a whopping 2.5 million-hour MTBF rating for long-term reliability, one of the best in the business for enterprise storage, according to Western Digital. Better still, it has an annual workload of up to 550 TB! Thus, it can effectively support the most intensive Enterprise environments running through constant writes and access.

Rotational vibration protection is also a convenient feature; Most enterprise servers run dozens of drives at once. Naturally, vibration can affect performance. The good news here is that the HC680 sports built-in vibration sensors, allowing it to operate properly in tightly-packed storage systems.

It is crucial to keep temperature under control within enterprise servrers. The good news is that the HC680 does incredibly well in this regard. The helium-filled HelioSeal design keeps internal friction to a minimum. As a result, the drive is relatively cooler than traditional air-filled hard drives.

This leads to lower cooling needs in the data center, while higher-temperature reliability also operates at a lower temperature. This enables organizations to reduce their overall operational costs while maximizing storage capacity.

The issue becomes crucial, particularly with hundreds or thousands of hard drives working together. The good news is that Western Digital configured HC680 with efficiency in mind. The helium-filled design spins the platters more easily, which requires less energy. Meanwhile, the OptiNAND technology also advances efficient storage.

As a result, businesses get more storage space while using less energy per terabyte. Those savings can amount to thousands, if not millions, over multiple years for larger enterprise deployments.

Its technology is one reason why the HC680 has a leg up on many competing enterprise drives. OptiNAND provides better management of metadata and drives in general.

Energy-Assisted Perpendicular Magnetic Recording (ePMR) also improves recording accuracy, providing Western Digital with the ability to pack in more data per platter. UltraSMR, in particular, is a game-changer in data storage for such massive density. This enables the HC680 to reach a maximum capacity of 28 TB while retaining enterprise-level reliability.

After looking at various aspects of the Ultrastar DC HC680, we conclude that good and bad points of this HDD in the following list:

Pros

• Massive 28TB storage capacity
• Excellent enterprise reliability
• HelioSeal reduces heat and power usage
• Advanced OptiNAND technology
• ePMR and UltraSMR improve storage density
• Very efficient for large data centers
• Built for continuous 24/7 workloads
• Strong vibration protection
• 2.5 million hours MTBF
• Five-year warranty
  
  

Cons

• Much slower than SSDs
• Expensive for home users
• Best suited for enterprise environments
• Not intended for gaming or everyday desktop PCs
  
  

Basically, the WD Ultrastar DC HC680 is not intended to be king of the mountain in terms of speed (another area where consumer SSDs excel), and indeed it doesn't need to. It homes in on the essentials for enterprise environments instead: massive capacity, blazing speeds, and excellent efficiency.

Western Digital, for its part, has already stacked HelioSeal + OptiNAND + ePMR + UltraSMR technologies to deliver one of the highest-capacity enterprise HDDs in history. Its low power consumption, long endurance, and consistent performance also make it an excellent option for cloud providers, enterprise servers, AI storage, media archives, and large backup infrastructures.

It will cost far more than consumer hard drives, but it is worthwhile for businesses investing in long-term storage. The WD Ultrastar DC HC680 is undoubtedly one of the best enterprise HDDs when operating cost and maximum storage density are your goals.