Western Digital Ultrastar DC HC550 internal hard drive 18 TB 7200 RPM 512 MB 3.5" SAS

18 TB, SAS 12 Gb/s, 512e, SED

Key Features

• 18TB/16TB 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

Description

Ultrastar DC HC500 Series

High Capacity for Massive Data and Lower Total Cost of Ownership

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.

Solves TCO Challenges
- High Capacity
Up to 18TB HDDs, drop-in ready for Big Data workloads
- Low Power
Up to 61% lower idle W/TB than 10TB Ultrastar air-filled drives
- More Reliable
25% higher MTBF rating than air-filled HDDs

Continuous Innovation for Highest Capacities and Lower TCO

The Ultrastar DC HC550 18TB CMR HDD and Ultrastar DC HC650 20TB SMR HDD are delivering industry leading capacity for the data center through a combination of new and proven technologies.

Western Digital is the first to deliver Energy-Assisted Magnetic Recording (EAMR) technology and a Triple Stage Actuator (TSA). These new technologies combined with further mechanical innovations and HelioSeal technology provide the industry’s highest capacities to enable data at scale with optimized TCO for data center architectures, while maintaining workload reliability and performance.

Specifications

Hard drive
Component for	Server/workstation
HDD interface transfer rate	12 Gbit/s
Workload rate limit	550 TB/year
Average latency	4.16 ms
Mean time between failures (MTBF)	2500000 h
Start/stop cycles	600000
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	18 TB
Features
Type	HDD
Component for	Server/workstation
HDD interface transfer rate	12 Gbit/s
Workload rate limit	550 TB/year
Interface	SAS
Average latency	4.16 ms
Mean time between failures (MTBF)	2500000 h
Start/stop cycles	600000
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	18 TB
Storage drive buffer size	512 MB
24/7 operation	Yes
Noise level (idle)	2 dB
Power
Power consumption (write)	6.5 W
Power consumption (read)	6.5 W
Power consumption (idle)	5.6 W
Operating voltage	5 / 12 V
Operational conditions
Operating temperature (T-T)	5 - 60 °C
Storage temperature (T-T)	-40 - 70 °C
Operating vibration	0.67 G
Operating shock	50 G
Non-operating vibration	1.04 G
Non-operating shock	250 G
Technical details
Quantity per pack	1 pc(s)
Harmonized System (HS) code	84717050
Manual	Yes
Interface	SAS
Mean time between failures (MTBF)	2500000 h
Packaging content
Manual	Yes
Weight & dimensions
Width	4" (101.6 mm)
Weight	24.3 oz (690 g)
Height	1.03" (26.1 mm)
Depth	5.79" (147 mm)
Packaging data
Manual	Yes
Quantity per pack	1 pc(s)
Logistics data
Harmonized System (HS) code	84717050
Other features
Interface	SAS