Ultrastar DC HC320 8TB Enterprise Hard Drive for Data Centers

The Ultrastar DC HC320 is based on a proven 5-disk air platform design that utilizes conventional magnetic recording (CMR) technology in a 3.5-inch large form factor. Compared to the previous generation, the Ultrastar 7K6000, the DC HC320 delivers a 33% increase in capacity, up to a 12% performance boost, and uses slightly larger-diameter media. To enhance head positioning accuracy and improve drive performance, it features a second-generation, dual-stage micro actuator.

Western Digital's media cache architecture, a disk-based caching technology, provides a large cache area on the disk, which not only improves write performance but also enhances reliability and data integrity during unexpected power loss. Additionally, the inclusion of flash-based non-volatile cache (NVC) further boosts write performance.

The Ultrastar DC HC320 also incorporates a Rebuild Assist feature, which helps significantly reduce RAID rebuild times while maintaining system performance. This feature is particularly valuable in ensuring the continued reliability and availability of data stored on the drive.

Compared to its predecessor, the Ultrastar DC HC320 delivers a notable 33% increase in storage capacity, along with a up to 12% performance enhancement. This improvement is achieved through the use of larger-diameter media and a second-generation, dual-stage micro actuator, which enhances head positioning accuracy and overall drive performance.

The drive's media cache architecture, a disk-based caching technology developed by Western Digital, provides a large cache area on the disk. This not only improves write performance but also enhances data reliability and integrity during unexpected power loss events. Furthermore, the addition of flash-based non-volatile cache (NVC) further boosts write performance, ensuring consistent and reliable data handling.

To address the critical need for efficient RAID rebuild times, the Ultrastar DC HC320 incorporates a Rebuild Assist feature. This innovative solution dramatically reduces RAID rebuild times, maintaining system performance and ensuring the continued reliability and availability of data stored on the drive.

In summary, the Ultrastar DC HC320 represents a significant advancement in enterprise-class hard drive technology. Its enhanced capacity, performance, and reliability features, combined with the Rebuild Assist functionality, make it a compelling choice for data centers and other mission-critical storage applications.

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