Seagate Exos Mozaic 3+ Redefines Server Hard Drives

When most people think of “server hard drives,” the conversation usually leans on speed or durability. What the Seagate Exos Mozaic 3+ adds is an impressive leap in capacity, all while keeping compatibility and cutting down energy use.

What Makes Mozaic 3+ Different?

The Mozaic 3+ platform is built on Seagate’s HAMR (Heat-Assisted Magnetic Recording). By fitting up to 3 TB on a single platter, the drive reaches as much as 36 TB in the familiar 3.5-inch format. Data centres don’t need to overhaul infrastructure to take advantage of the extra headroom.

Why It Stands Out for Server Hard Drives

  • High capacity: 36 TB per drive means fewer units for the same workload.
  • Lower costs and energy use: Around 25% less cost per terabyte and up to 60% less power consumption compared with previous designs.
  • Easy upgrades: These drives slot straight into existing racks without disruption.

Early Deployments

Major cloud providers are already trialling the technology. Dell, among others, is bringing Exos Mozaic 3+ into high-density systems tuned for AI and analytics.

Performance and Market Availability

A 32 TB version is currently in testing, with 36 TB models open for preorder. Reviews point out solid efficiency, with up to three times better power-per-terabyte than older alternatives.

Designed for Server Hard Drives

The balance of huge capacity with lower power draw makes Mozaic 3+ an obvious fit for enterprise servers. With proven reliability and the same 3.5-inch form factor, adoption is straightforward.

Exos Mozaic 3+ for Server Hard Drives

Feature Benefit in Server Environments
Capacity up to 36 TB Maximises storage per slot, fewer drives needed
HAMR technology Boosts density and enables future capacity gains
Lower power per terabyte Reduces operating costs and cooling demand
Standard 3.5-inch size No need for infrastructure changes
Enterprise reliability Suited for continuous workloads

Real-World Relevance

From AI clusters and cloud platforms to archive systems, these server hard drives are designed to keep pace with modern data growth.

Use-Case Quick Map

Scenario Why Exos Mozaic 3+ Fits Key Advantage
AI model training Handles massive sequential I/O High capacity per node, better £/TB
Long-term archives Compliance and retention needs Dense storage, smaller footprint
Object storage Scale-out with predictable costs Energy efficiency, stable TCO
Media production Large file handling Consistent throughput, easy scaling

Future-Proofing the Data Centre

Seagate has already signalled the next steps. Mozaic 4+ aims for 40 TB, while Mozaic 5+ is set to reach 50 TB. The roadmap points towards continued growth in capacity without added complexity.

Server Hard Drives and AI Workloads

AI thrives on vast amounts of data. With Mozaic 3+, server hard drives provide the headroom for training and inference at scale, without pushing energy bills beyond reach.

Server Hard Drives and Sustainability

Efficiency matters for budgets and for the environment. By storing more data in fewer units and reducing power use, Mozaic 3+ helps shrink both costs and carbon impact.

The conversation about server hard drives used to involve trade-offs between space, speed, and cost. With the Seagate Exos Mozaic 3+, those compromises are fading. It offers density, efficiency, and long-term reliability in one package, and upgrades don’t demand a complete rebuild.


Contact our experts today to discuss Seagate Solutions: https://exertisenterprise.com/seagate/

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