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 HC530 HDDs (SAS or SATA)
    • Up to 1.4PB raw capacity in 4U
    • Hybrid support for data acceleration tier with SSDs (SAS
      or SATA) in up to 24 of the drive slots
    • 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

                                                                                                                                Ultrastar Data102 Hybrid Storage Platform


Max. Drives

Drive Interface

Available Drive Capacities

Host Interface


Physical Dimensions








LED Indicators



102 x 3.5” drive bays
Up to 24 can be SAS or SATA SSD

12 Gb/s SAS
6 Gb/s SATA

HDD up to 14TB
SSD up to 15.36TB

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