Areal Density
Why Does Areal Density Matter?
The future of mass-capacity and sustainability is now.
Yikes. This 15x gap1 indicates a huge need for more storage. As data continues to explode in the wake of AI productization, enterprise data centres will need to find sustainable ways to scale against limited space, power and budget.
But with the direction data is headed — complete overload — this approach won’t be sustainable in the future.
Imagine a 10-disk hard drive, and each disk can hold 3 TB of data. In total, you could store 30 TB of data on that drive.
Now imagine the same exact drive — but each disk can hold 4 TB instead of just 3 TB. Capacity gets boosted by 10 TB, no extra disks required.
That’s the magic of areal density.
Aside from delivering mass-capacity storage, hard drives with ultra-high areal density can enable data centres to:
The proven path to breakthrough areal density is here with Exos® Mozaic 3+™ mass-capacity hard drives. Built to enable hyper-efficient, sustainable data storage, Exos features Mozaic 3+™, a powerful platform that unleashes areal density of 3 TB/disk so that you can store more exabytes than ever — in less space for significantly a lower cost.
IDC StorageSphere. 2024 vs. 2025 install base, IDC Datasphere, 2024 vs. 2025 Incremental New Data Generated.
Based on Exos X24, Max Operating, Random Read/Write 4K/16Q.
Based on 13 cents per kilowatt hour.