1-800-275-4576
18.0TB Western Digital Ultrastar DC HC550
Enterprise Class Hard Disk Drive
Used | OWC Tested
Mfr P/N: 0F38459 OWC SKU: WDG0F38459U
Ultrastar SATA Series: The New Gold Standard
- CMR technology works with all capacity enterprise applications & environments
- Reliable, field-proven, 6th generation design
- Industry’s first HDD with Energy-Assisted Magnetic Recording technology
- HelioSeal® design delivers outstanding power efficiency
- 2.5M hours (projected) MTBF1 rating
- Western Digital 1+ Year Limited Warranty
In Stock: Ships Same Day!$277.75
You Save $107.24
Limited supply! Only 2 available.
Total Cost of Ownership (TCO) Drives the Data Center Architecture
Data center decisions are driven by TCO. Higher capacity hard drives play a leading role in reducing TCO. An 18TB data center HDD provides 29% more capacity in the same form factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CapEx by reducing supporting hardware and system level costs when compared to lower capacity drives. Helium-sealed, low power, high reliability drives reduce energy and maintenance costs, contributing to OpEx savings. For example, a data center using 18TB HDDs vs. 14TB HDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting in significant overall TCO reduction for data center environments.
Raising the Capacity Bar with New Technologies
Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create a new class of HDDs. 18TB capacity is achieved by combining technologies that improve areal density working together with technologies that improve performance and reduce power consumption.
- The first HDD in the industry to harness Energy-Assisted Magnetic Recording (EAMR) technology improves writability and therefore increases areal density.
- The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy, delivering better performance and increased areal density.
- HelioSeal® technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date.
Trusted Reliability and Quality for Data at Scale
With its massive capacity and 2.5M MTBF1 (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions.
- Projected values. Final MTBF and AFR specifications will be based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, typical workload and 40°C device-reported temperature. Derating of MTBF and AFR will occur above these parameters, up to 550TB/year and 60°C (device reported temperature). MTBF and AFR ratings do not predict an individual drive’s reliability and do not constitute a warranty.
Includes
Back to top
- (1) Western Digital Ultrastar DC HC550 Hard Disk Drive
- Western Digital 1+ Year Limited Warranty
Specs
Back to top
Total Capacity
- 18.0TB
Formatted Capacity
- 16764GiB
Rotational Speed
- 7,200RPM
Cache Data Buffer
- 512 MB
Form Factor
- 3.5-inch
Drive Interface
- SATA 6.0 Gb/s
Transfer Rate
- up to 600.0Gb/s
Average Latency
- 4.16 ms
Nonrecoverable Read Errors
- 1 per 1015 bits read
MTBF (Mean Time Between Failures)
- 2,500,000 hours
Annual Failure Rate
- .35%
Contact Start Stops
- 600,000
Idle Mode (Max)
- Up to 5.6 Watts
Idle Mode, Low Power (Max)
- Up to 0.31 Watts
Standby Mode (Max)
- Up to 5.6 Watts
Dimensions
- Height: 2.6 cm (1.0 in)
- Length: 14.7 cm (5.8 in)
- Width: 10.2 cm (4.0 in)
Weight
- 690.0 g (1.52 lbs)
Bytes per Sector
- 512 / 4k (512e)
Areal Density
- 1,022Gb/in2
Ambient Temperature
- Operating: 41°F to 140°F (5°C to 60°C)
- Non-Operating: -40°F to 158°F (-40°C to 70°C)
Shock
- Operating: 50 G max at 2 ms
- Non-Operating: 250 G max at 2 ms
Idle (Typical)
- 2.0 bels
Seek (Typical)
- 3.6 bels
- 2.5M MTBF is a projected value. Final MTBF and AFR specifications will be based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, typical workload and 40°C device-reported temperature. Derating of MTBF and AFR will occur above these parameters, up to 550TB/year and 60°C (device reported temperature). MTBF and AFR ratings do not predict an individual drive’s reliability and do not constitute a warranty.
Videos
Back to top
