WD Ultrastar 18TB HDD DC HC550 7200RPM SATA 6Gb/s 3.5" Enterprise Hard Drive - WUH721818ALE6L4 (0F38459)
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Options
| Capacity | 18TB |
|---|---|
| Interface | SATA |
| Form Factor | 3.5" |
| Spindle Speed | 7.2K RPM |
| Condition | New |
| Warranty | 5 Years Manufacturer |
Western Digital Ultrastar DC HC550 18 TB SATA Hard Drives
Ultrastar DC HC550 (0F38459)
18TB Provides 29% more capacity than 14TB helium-filled drives
Ultra-low Watts per Terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives
Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology More accurate head positioning, especially in multi-drive environments, for better performance and data integrity
Rotational Vibration Safeguard (RVS) Maintains drive performance in high rotational vibration environments and multi-drive systems
Media Cache Plus architecture Better random write performance
512MB cache buffer Improves response time and data management
Dual Safe, RSA-signed firmware Retains previous firmware version for safe firmware updates, verified with an RSA signature
2.5M hours MTBF and 0.35% AFR Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs
Tech Brief: Energy assisted magnetic recording
Manual: HC550 product documentation
Part Number Selector: HC550 part options
Highlights
- 18TB capacity 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 improves writability and therefore increases areal density
- Industry’s first Triple Stage Actuator enhances head-positioning accuracy, delivering better performance and increased areal density
- HelioSeal design delivers outstanding power efficiency
- 2.5M hours (projected) MTBF rating & 5-year limited warranty
- 512e SATA 6Gb/s
- Legacy Pin 3 config – no power disable support
- Base (SE), no encryption. Sanitize overwrite only
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
Specifications
| Type | Enterprise HDD |
|---|---|
| Brand | Western Digital |
| Series | Ultrastar DC HC550 |
| Model Number | WUH721818ALE6L4 |
| Part Number | 0F38459 |
| Form Factor | 3.5" |
| Capacity | 18TB |
| Interface | SATA 6Gb/s |
| Spindle Speed | 7.2K RPM |
| Tray | Tray not included |
| Weight | 1.7 lbs |
| Width | 4 in |
| Height | 1 in |
| Depth | 5.8 in |
| Click to view WUH721818ALE6L4 datasheet |
Warranty
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Condition - New : 5 Years Manufacturer Limited Period Warranty
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