HGST Hard Drive 0F38459 3.5" 26.1MM 18TB 512MB 7200RPM SATA ULTRA 512E SE NP3 DC HC550 Bare

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 industry’s 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.

Highlights

•Up to 18TB capacity in a standard 3.5-inch form factor

•Industry’s first Energy-Assisted Magnetic Recording technology

•Industry’s first Triple Stage Actuator

•Leading HelioSeal technology

•Reliable, field-proven design across five generations

•HelioSeal design delivers power efficiency (Watts/TB)

•2.5M hours MTBF rating and a 5-year limited warranty

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 General
Interface
SATA 6 Gb/s
Capacity
18TB
Format: Sector size (bytes)
4Kn: 4096
512e: 512
Performance
Data buffer (MB)
512
Rotational speed (RPM)
7200
Sustained transfer rate
(MiB/s, typical)
257
(MB/s, typical)
269
Reliability
Error rate (non-recoverable bits read)
1 in 10¹⁵
MTBF (M hours, projected)
2.5
Annualized Failure Rate (AFR, projected)
0.35%
Load/Unload cycles (at 40^oC)
600,000
Availability (hrs/day x days/wk)
24x7
Acoustics
Idle/Operating (Bels, typical)
2.0
Power
Requirement
+5 VDC, +12VDC
Operating (W)
6.5
Idle (W)
5.6
Power consumption efficiency at Idle
(Watts/TB)
0.31
Environmental (Operating)
Ambient temperature
5^oC to 60^oC
Shock (half-sine wave, 2ms, G)
70
Vibration-Operating (G RMS, 5 to 500 Hz)
0.67 (XYZ)
Environmental (Non-Operating)
Ambient temperature
-40^oC to 70^oC
Shock (half-sine wave, G)
250 (2ms)
Random Vibration (G RMS, 2 to 200 Hz)
1.04 (XYZ)
Item Dimension (L"x W"x H")
6 x 4 x 2
Weight
1.50 LB
Warranty Information
5 years