More value to the Data Centre with Maximum Capacity, Power Efficiency & Reliability Laying the foundation for a worry-free data centre, Western Digital delivers capacity to conquer the data explosion – Ultrastar DC HC520, previously known as Ultrastar He 12 & part of our HC500 series of helium-filled hard drives. Designed to handle workloads up to 550 TB per year, the Ultrastar DC HC520 is the industry’s first 12 TB drive & uses traditional perpendicular magnetic recording (PMR) technology to make it drop-in ready for any enterprise-capacity application or environment. The stable internal environment created by fourth-generation Helio Seal technology enables a new 8-disk design, increasing the capacity by 20% when compared to the 7-disk design of the prior generation, Ultrastar DC HC510. This high capacity helium drive offers one of the lowest power profiles in the industry to help data centre architects meets eco-environmental goals & requirements. Targeted at 2.5M hours MTBF, the Ultrastar DC HC520 provides the highest reliability rating available of all HDDs on the market today by building on the successful design of its 10 TB, 8 TB & 6 TB predecessors. Trust Western Digital & the Ultrastar DC HC520 to deliver more capacity, more efficiency, more reliability & more value to your data centre. Helio Seal Technology Helps Solve Challenges Facing Next Generation Data Centres Data centres are facing growing pressures. Data volume is expanding, operating costs are rising, yet budgets remain flat. Lowering the total cost of ownership (TCO) has become the focus of data centre architects & the Ultrastar DC HC520 provides the best value proposition & greatest storage efficiency available. Compared to 8TB Ultrastar air-filled drives, this Helio Seal hard drive provides 50% more capacity, uses 52% less power (Watts/TB), & is 25% more reliable, rated at 2.5M hours MTBF. Datacentre ready features like a second generation dual-stage actuator—the Western Digital Micro Actuator—enhance head-positioning accuracy to deliver better performance, data integrity & overall drive reliability, especially in multi-drive environments where operational vibration is present. Refer to our technical brief to learn more. A choice of 6 GB/s SATA & 12 GB/s SAS interface enables easy integration into high performance data centres. Data Durability & Data Security to Support Compliance & Privacy Requirements As drive capacity grows beyond single-digit TBs, object storage systems with erasure coding provide better data durability compared to RAID systems, given its tolerance for simultaneous error conditions. The Ultrastar DC HC520 is a best-fit for object storage implementations with its massive capacity & unbeaten reliability rating. Compliance & privacy requirements drive the need for increased data security. The Ultrastar DC HC520 offers security & encryption options to help protect data from unauthorized use, including TCG SAS models. Western Digital Quality & Service The Ultrastar DC HC520 extends Western Digital’s long-standing tradition of reliability leadership with a 2.5M-hour MTBF rating & a 5-year limited warranty. Ultrastar quality, capacity, power efficiency, & world-class technical support & service provide customers with a lower total cost of ownership over previous generations. Western Digital data centre drives are backed by an array of technical support & services, which may include customer & integration assistance. Western Digital is dedicated to providing a complete portfolio of products & services to help create environments for data to thrive. Features 12TB capacity in a standard 3.5-inch form factor. PMR technology works with all capacity enterprise applications & environments. Reliable, field-proven, 4th generation design. Outstanding power efficiency (Watts/TB). 12 GB/s SAS compatible with next-gen data centres; backwards compatible with 6 GB/s SAS. 2.5M hours MTBF2 rating & 5-year limited warranty. Instant Secure Erase (ISE) & Self-Encrypting Drive (SED) options. Advanced Format 4 Kn & 512e models.