Western Digital Ultrastar 0B47078 internal hard drive 8 TB 7200 RPM 256 MB 3.5" Serial ATA

Ultrastar DC HA340 Data Center 3.5” SATA HDD

Key Features

• Ultrastar DC HA340 drives extend Western Digital's long-standing tradition of reliability leadership with a 2.0M-hour MTBF failure rating (projected) and a 5-year limited warranty.
• Capacity points support both OEM and cloud deployments as well as traditional IT systems.
• Performance-optimized to handle heavy application workloads up to 550TB per year

Description

Economical Capacities and Fast Data Access for the Data Center
The Ultrastar® DC HA340 HDD in 4TB, 6TB, and 8TB delivers efficiency and performance for traditional and legacy systems based on proven CMR technology. Designed for a variety of applications including traditional storage arrays, rack-mounted storage enclosures and server-based storage systems, these drives are offered at 7,200 RPM with 6Gb/s SATA and Advanced Format 512e format.
Technology innovation delivers efficiency and performance for legacy systems
Address data center requirements by providing legacy capacities from 4TB to 8TB while implementing the latest in HDD storage technologies.
Proven and cost-efficient design
Ultrastar DC HA340 drives are based on an air-based HDD platform with Conventional Magnetic Recording (CMR) technology in a 3.5-inch form factor.  
Performance and protection 
These 4TB, 6TB, and 8TB HDD’s leverage a dual-stage microactuator to enhance head positioning accuracy for better drive performance.  
Designed for data center workloads
The Ultrastar DC HA340 is performance-optimized to handle heavy application workloads of up to 550TB2 per year.
Built with reliability in mind 
This robust drive delivers dependability in intense data center environments with up to 2M hours MTBF3 (projected). 
Quality and security
Provides additional peace of mind with a 5-year limited warranty. 

Specifications

Software
Windows operating systems supported	Yes
Linux operating systems supported	Yes
Hard drive
HDD sustained transfer rate	255 MiB/s
HDD interface transfer rate	6 Gbit/s
Workload rate limit	550 TB/year
Average latency	4.16 ms
Mean time between failures (MTBF)	2000000 h
Start/stop cycles	600000
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	8 TB
Features
Type	HDD
HDD sustained transfer rate	255 MiB/s
HDD interface transfer rate	6 Gbit/s
Workload rate limit	550 TB/year
Interface	Serial ATA
Average latency	4.16 ms
Windows operating systems supported	Yes
Linux operating systems supported	Yes
Mean time between failures (MTBF)	2000000 h
Start/stop cycles	600000
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	8 TB
Storage drive buffer size	256 MB
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^15 bits read
Advanced Format (AF)	Yes
24/7 operation	Yes
Power
Power consumption (typical)	8 W
Power consumption (idle)	6.7 W
Operating voltage	5 / 12 V
System requirements
Windows operating systems supported	Yes
Linux operating systems supported	Yes
Operational conditions
Operating temperature (T-T)	5 - 60 °C
Storage temperature (T-T)	-40 - 70 °C
Operating vibration	0.67 G
Operating shock	70 G
Non-operating vibration	1.04 G
Non-operating shock	300 G
Technical details
Quantity per pack	1 pc(s)
Interface	Serial ATA
Mean time between failures (MTBF)	2000000 h
Weight & dimensions
Width	101.6 mm
Weight	715 g
Height	147 mm
Depth	26.1 mm
Packaging data
Quantity per pack	1 pc(s)
Other features
Interface	Serial ATA
Windows operating systems supported	Yes
Linux operating systems supported	Yes