Dell R20GG / Western Digital 0F38377 WUH721818AL5200 18TB SAS Hard Drive

Western Digital Part #/MPN: 0F38377

DiscTech Item #: WDC-0F38377-BN-OE-DEL


$559.99
$559.99

Enterprise Grade

Capacity: 18TB

Speed: 7,200RPM

Interface Types: SAS Serial Attached SCSI

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 243/255

Average Seek Time: 8.0/8.6

Electrical Interface: SAS-3 Serial Attached SCSI v3 - 12.0Gbps

On-Board Cache: 256MB

Compatible Systems: Dell 15th Gen. R650 / R750, Dell 14th Gen. R640/R740, Dell 13th Gen. R730/T630, Dell 12th Gen. R720/T620

Dell R20GG / Western Digital UltraStar DC HC550 0F38377 WUH721818AL5200 18TB 3.5" 12Gbps 7.2K RPM 512e SAS HDD - Brand New OEM

Dell R20GG / Western Digital UltraStar DC HC550 0F38377 WUH721818AL5200 18TB 3.5" 12Gbps 7.2K RPM 512e SAS Hard Disk Drive with Instant Secure Erasure 

DP/N: 

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 Hel

Trusted Reliability and Quality for Data at Scale

With its massive capacity and 2.5M MTBF (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. The DC HC550 offers security and encryption options to help protect data from unauthorized use, including SED models in both SATA & SAS. A SED-FIPS will be available in a SAS configuration. Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center

Highlights

• 18/16TB capacity¹ in a standard 3.5-inch form factor 

• 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 

• Industry’s first Triple Stage Actuator 

• HelioSeal® design delivers outstanding power efficiency

 • 2.5M hours (projected) MTBF² rating & 5-year limited warranty 

• Self-Encrypting Drive Options 


Applications 

• 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


Compatibility:

This drive is compatible with any server that accepts 3.5inx1.0in Large Capacity 12Gb/s SAS Drives.


Ultrastar He8
Model/Part No.0F38377
Alt Model/Part No.WUH721818AL5200 / R20GG 
Configuration
Capacity18TB/18000GB
InterfaceSAS 12Gb/s
Format : Sector size (bytes)512e: 512
Max. Areal density (Gbits/sq. in)918
Performance
Data buffer (MB)512
Rotational speed (RPM)7200
Latency average (ms)4.16
Interface transfer rate (MB/s, max)1200
Sustained transfer rate (MB/s, typ.)
(MiB/s, typical)

269
257
WorkloadsUp to 550 TB / year
Reliability
Error rate (non-recoverable, bits read)1 in 10E15
Load/Unload cycles (at 40°C)600,000
Availability (hrs/day x days/wk)24x7
MTBF (M hours)2.5
Annualized Failure Rate (AFR)0.35%
Acoustics
Idle (Bels, typical)2.0/3.6
Power
Requirement+5 VDC
+12 VDC
Operating8.8
Idle (W)5.8
Power consumption efficiency at idle (W/TB)
(Watts/TB)

0.32
0.00032
Physical size
z-height (mm)26.1
Dimensions (width x depth, mm)101.6 (+/- 0.25) x 147
Weight (g, max)690
Environmental (Operating)
Ambient temperature5°C to 60°C
Shock (half-sine wave, 2 ms, G)50
Vibration (G RMS 5 to 500 Hz)0.67 (XYZ)
Environmental (Non-Operating)
Ambient temperature-40°C to 70°C
Shock (half-sine wave, G)250 (2ms)
Random Vibration (G RMS 2 to 200 Hz)1.04 (XYZ)

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ROHS Compliant

Alternate MPNs: WUH721818AL5200 R20GG 0R20GG

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty