Ultrastar Data102
Designed for Extreme Density

Western Digital Ultrastar Data102 Hybrid Storage Platform

Designed for Extreme Density and Flexibility

The Ultrastar Data102 hybrid storage platform is a key element of next-generation disaggregated storage and Software-Defined Storage (SDS) systems. The extremely dense form factor provides the flexibility to specify the HDD and SSD combinations for balancing capacity, performance, and cost. A flash data acceleration tier can be enabled to serve both fast data and big data applications from a single platform. The Ultrastar Data102 addresses the demanding storage needs of large enterprise customers, storage OEMs, cloud service providers, and resellers/integrators that require dense, shared HDD or hybrid storage.


    • Up to 102 Ultrastar DC HC570 HDDs (SAS or SATA)
    • Up to 2.2PB raw capacity in 4U
    • Dual-port SAS for high availability or single-port SATA for low cost
    • Enterprise-grade redundant and hot-swappable PSUs, I/O modules, and fans
    • 5-year limited warranty

Applications and Workload

    • SDS Environments
    • Big Data
    • Private Cloud
    • Data Analytics
    • Cloud Infrastructure
Ultrastar Data102 Hybrid Storage Platform
Ultrastar Data102 Hybrid Storage Platform

Specifications                                                     Ultrastar Data102 Hybrid Storage Platform



Max # of Drives

Drive Interface

Available Drive Capacities

Host Interface


Physical Dimensions








LED Indicators




102 x 3.5” drive bays

12 Gb/s SAS
6 Gb/s SATA

HDD up to 22TB

Dual redundant I/O Modules (IOM)
6 Mini-SAS HD ports per IOM

SCSI Enclosure Services
Redfish (out of band, via RJ45)

Height: 175mm (6.89”)
Width: 447mm (17.61”)
Depth: 1047mm (41.25”)
Depth in Rack: Max of 1,197mm (47.13”) w/ dual CMA—includes 2 SAS cables

Product without drives: 31.8kg (70lbs)
Product with 102 HDDs: 118.8kg (262lbs)

Dual 1600W, 80+ Platinum
200-240V AC input, auto ranging, 50-60Hz

4 main enclosure fans, front-to-rear system cooling with zero-loss backflow prevention
1 I/O module fan
Dual PSUs with built-in fans

Front/Rear: Power, ID, Fault
Drive: Activity, Fault

Cable-free hot-swappable IOM, power supply, fans and drives

Operating Temperature: 5 to 40°C
Non-op Temperature: -40 to 60°C
Humidity: 5 to 85% relative humidity
Operating Altitude: 40°C @ 3,000ft
Sound Power: < 7.2Bels @ 23±2°C