Western Digital Ultrastar DC HC300-series are based on a proven and cost-efficient air-based HDD
platform design, with Conventional Magnetic Recording (CMR) technology in a 3.5-
inch large form factor. These HDDs leverage common hardware and firmware while
featuring a second-generation, dual-stage microactuator 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, improving reliability and data integrity. Finally, the addition of a flash-based non-
volatile cache (NVC) on both SATA and SAS models helps improve write performance.
Key Advantages/Highlights
- 2TB-10TB capacity points support both OEM
& cloud deployments as well as traditional IT
systems
• Leverages common hardware & firmware to
minimize redundant testing needs
• Sustained transfer rate up to 262MB/s
• Advanced Format 4Kn and 512e format4
• Self-Encrypting Drive option
Applications/Environments
- Distributed file systems, like Apache Hadoop®,
to support Big Data analytics
• Rack-mounted storage enclosures
• Server based distributed storage systems.
• Direct & Network Attached Storage
(DAS & NAS)
• RAID storage
Economical Capacities and Fast Data Access Key Requirements for HDDs in the Data Center
T managers need to offer storage tiers as they deploy purpose-built solutions to
meet their on-prem, off-prem & cloud storage requirements. While helium filled drives
enable the highest capacities, air-filled drives offer important benefits. With a lower
TCA (total cost of acquisition), legacy options, and higher access density (IOPs/
TB), they are the perfect choice for maintaining a desired level of performance while
allowing customers to tailor budgets to meet their needs.
The Ultrastar® DC HC300-series help to address data center requirements by
providing capacities from 2TB to 10TB while increasing performance over prior
generations. They are designed for a variety of applications including traditional
storage arrays, rack-mounted storage enclosures and server-based distributed
storage systems, as well as distributed and scalable computing, including block and
file storage architectures. They are offered at 7,200 RPM with either 6Gb/s SATA or
12Gb/s SAS interface in Advanced Format 4Kn and512e format4. A 512n option is also
available on 4TB models to support legacy systems with native 512-byte block sizes.
Data Security with Trusted Quality, Reliability
Compliance and privacy requirements drive the need for increased data security. The
Ultrastar DC HC300-series offers security and encryption options to help protect
data from unauthorized use, including SED models in both SATA & SAS. An SED-FIPS
validated version is available in a SAS configuration. The Ultrastar DC HC300-series
extend Western Digital’s long-standing tradition of reliability leadership with a 2M-hour
MTBF rating, workloads up to 550TB per year, and a 3-year limited warranty.
