What Is Kryder’s Law?

What is Kryder's Law?

Understanding Kryder’s Law: The Evolution of Data Storage

Do you ever stop and wonder how technology has advanced so rapidly, particularly when it comes to data storage? Well, you’re not alone. Over the years, numerous laws and principles have been put forth to explain and predict the exponential growth of digital storage capacity. One of these is Kryder’s Law. In this article, we’ll dive deep into the concept of Kryder’s Law, its significance, and how it has influenced the development of storage technologies.

Key Takeaways

  • Kryder’s Law predicts exponential growth in digital storage capacity over time.
  • The law was proposed by Mark Kryder, who stated that storage density would double roughly every 13 months.

Introduction: What is Kryder’s Law?

Kryder’s Law is a principle that describes the exponential rate at which digital storage capacities increase over time. Proposed by Mark Kryder, then Chief Technology Officer (CTO) of Seagate Technology, Kryder’s Law states that the density of information storage doubles roughly every 13 months. It is often compared to Moore’s Law, which predicts the exponential growth of computing power, and has played a vital role in shaping the technology landscape we observe today.

The Evolution of Kryder’s Law

To understand Kryder’s Law better, let’s take a journey through its evolution and the milestones it has witnessed over the years:

  1. The Initial Proposal: Mark Kryder first proposed this law in 2005 during his tenure at Seagate Technology, a prominent manufacturer of hard disk drives (HDDs). At that time, the aim was to showcase the rapid advancements in HDD technology and storage densities that were being achieved.
  2. Continued Growth: Since its inception, Kryder’s Law has proved to be remarkably accurate in predicting the evolution of storage technology. Over the years, storage densities have indeed doubled every 13 months or so, leading to ever-increasing capacities and smaller form factors.
  3. The Rise of Solid-State Drives (SSDs): In recent years, the emergence of solid-state drives (SSDs) has disrupted the storage landscape, challenging the traditional dominance of HDDs. SSDs, based on flash memory technology, provide faster access times, lower power consumption, and greater resilience. While Kryder’s Law was initially focused on HDDs, it still holds relevance in the context of SSDs, as their own storage densities have continued to increase at an unprecedented pace.
  4. The Future of Kryder’s Law: As technology advances, new storage mediums and technologies will continue to evolve. Kryder’s Law is expected to hold true for the foreseeable future, but the rate of growth may change as new innovations are introduced. Non-volatile memory technologies like 3D NAND and emerging storage approaches like DNA-based storage could potentially push the limits of density beyond what was previously imagined.


Kryder’s Law has played a crucial role in our understanding of data storage capabilities and the incredible pace at which they have evolved over time. As we continue to generate and rely on massive amounts of data, the prediction of exponential growth in storage capacity has facilitated the development of increasingly advanced storage technologies. It is a testament to human ingenuity and our ability to continuously push the limits of what is possible. So the next time you marvel at how much data your device can hold in such a tiny form factor, remember that Kryder’s Law has had a significant hand in making it all possible.