The Data Movement

Seagate
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The Data Movement explores the people, ideas, and technologies shaping how data is created, processed and used. Through conversations with technologists, creators, and business leaders, we dive into the applications, engineering, insights, and challenges behind the breakthroughs that power our data-driven world.

Episodes

  1. Mozaic and the Future of Mass-Capacity Storage – with Stephanie Hernandez

    14H AGO

    Mozaic and the Future of Mass-Capacity Storage – with Stephanie Hernandez

    In this episode of The Data Movement, host Paul Langstron sits down with Stephanie Hernandez, Senior Engineering Director at Seagate, to explore Mozaic—Seagate’s breakthrough HAMR (Heat-Assisted Magnetic Recording) technology platform—and how it’s redefining what’s possible in mass-capacity data storage. Stephanie shares her 15-year journey from magnetic recording researcher to leading future HAMR innovations, explaining how atomic-scale engineering, lasers, and advanced materials like iron platinum are enabling 30TB, 40TB, and soon 100TB-class drives—all within the same familiar 3.5-inch form factor. From overcoming the superparamagnetic limit to scaling production to millions of drives for hyperscale data centers, this conversation reveals the extraordinary science, precision, and vision powering the infrastructure behind the world’s exploding data demand. Time Stamps  00:00:00 – The Power of Data and Introducing Mosaic  00:01:00 – Stephanie’s 15-Year Journey at Seagate  00:03:30 – The Rise of HAMR and Industry Skepticism  00:08:30 – Understanding the Superparamagnetic Limit  00:10:50 – Grain Size, Signal-to-Noise, and Scaling Challenges  00:12:30 – The Core Innovations Behind HAMR  00:16:00 – Atomic-Scale Precision and Laser-Assisted Recording  00:23:30 – From Research Concept to Mass Production  00:26:30 – Why Capacity Growth Matters to the World  00:27:50 – Hyperscalers, Form Factor, and Fleet Economics  00:31:00 – Driving Aerial Density Toward 10TB per Disc  00:33:30 – Multisensor and Advanced Recording Technologies  00:40:00 – Beyond HAMR: Future Media and Architectures  00:41:30 – Exploring DNA Data Storage  00:43:00 – The Hidden Innovation Inside the Hard Drive    About Stephanie Hernandez     Dr. Stephanie Hernandez is Senior Engineering Director at Seagate Technology, where she leads advanced research and development for next-generation data storage technologies, including Heat-Assisted Magnetic Recording (HAMR) and other cutting-edge media and memory systems. She earned her Ph.D. in Electrical Engineering from the University of Minnesota in 2010, with graduate research focused on modeling magnetic recording media and spin-torque structures. After joining Seagate, she worked as a read transducer designer before moving into research roles in HAMR and advanced storage systems. Today, Stephanie’s work drives innovation in high-capacity hard drive technologies that power data centers and the global datasphere.    About Seagate:  Seagate is a leader in mass-capacity data storage. We’ve delivered more than four-and-a-half billion terabytes of capacity over the past four decades. We make storage that scales, bringing trust and integrity to innovations that depend on data. In an era of unprecedented creation, Seagate stores infinite potential. Unlock the full value of your data today.  Learn more at seagate.com    Links  Learn more about this episode  Connect with Stephanie on Linkedin  Connect with Paul on Linkedin  Learn more about Moziac Technology    Follow Seagate  Facebook: facebook.com/seagate    Instagram: instagram.com/seagate/   Linkedin: linkedin.com/company/seagate-technology/   X: x.com/Seagate  YouTube: youtube.com/user/SeagateTechnology   –  Discover The Data Movement at seagate.com/stories/podcast

    47 min

  2. 5D AGO

    Welcome to The Data Movement

    The Data Movement explores the people, ideas and technologies shaping how data is created, processed and used. Through conversations with technologists, creators and business leaders, we dive into the applications, engineering, insights and challenges behind the breakthroughs that power our data-driven world.

    1 min

Trailer

About

The Data Movement explores the people, ideas, and technologies shaping how data is created, processed and used. Through conversations with technologists, creators, and business leaders, we dive into the applications, engineering, insights, and challenges behind the breakthroughs that power our data-driven world.

Information

  • Creator
    Seagate
  • Years Active
    2K
  • Episodes
    2
  • Rating
    Clean
  • Copyright
    © 2026 Seagate