Western Digital UltraStar HC550 18TB 3.5" SATA SATA 6Gb/s 512MB Cache Hard Disk Drive, 257 MiB/s sustained transfer rate
Overview:
Driving Up Capacity and Driving Down TCO for Cloud and Hyperscale Data Centers
The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical.
The 18TB/16TB Ultrastar DC HC550 HDDs are the first commercial implementation of Energy-Assisted Magnetic Recording technology and utilize the industrys first Triple Stage Actuator. These technologies, integrated with HelioSeal on a 9-disk platform, deliver the highest areal density and unmatched Total Cost of Ownership for customer and market needs.
Features:
Highlights
Up to 18TB capacity in a standard 3.5-inch form factor
Industrys first Energy-Assisted Magnetic Recording technology
Industrys first Triple Stage Actuator
Leading HelioSeal technology
Reliable, field-proven design across five generations
HelioSeal design delivers power efficiency (Watts/TB)
Applications and Workloads
Cloud & Hyperscale Storage
Massive Scale-Out (MSO), high-density data centers
Distributed File Systems
Bulk storage using Object storage solutions like Ceph and OpenStack Swift
Primary and secondary storage for Apache Hadoop for Big Data Analytics
Surveillance Analytics
Specifications:
Interface SATA 6 Gb/s
Capacity 18 TB
Format: Sector size (bytes) 4Kn 4096
Format: Sector size (bytes) 512e 512
Sustained transfer rate (MiB/s, typical) 257
Sustained transfer rate (MB/s, typical) 269
Error rate (non-recoverable bits read) 1 in 10^15
MTBF (M hours) 2.5
Annualized Failure Rate (AFR) 0.35%
Operating (W, typical) 6.5
Idle (W) 5.6
