In a final irony, the date that once symbolized technical wizardry (first live migration) now marks a legacy of lock-in. Some engineers from that 2002 lab have left; others stay, maintaining the kernel of code that still runs inside data centers for 99% of the Fortune 500. Epilogue: The Virtual Legacy VMware did not invent virtualization – IBM mainframes had it in the 1960s. But VMware commoditized it, turning a mainframe luxury into a ubiquitous x86 utility. It enabled the modern cloud era, even if the cloud giants eventually ate its lunch.

Today, under Broadcom, VMware is no longer a visionary leader but a cash engine. The name remains on products – vSphere 8, NSX, vSAN – but the soul is different. Yet every time a server runs 20 VMs instead of one, or a VM live-migrates without a hiccup, the ghost of that Palo Alto lab lives on.

Each physical server—whether running Windows NT, Linux, or Novell NetWare—sat idling at 5% to 15% capacity. To run ten different applications, you needed ten different machines, each consuming power, cooling, and floor space. The industry’s solution was simply “buy more hardware.” Rosenblum and his colleagues, including Scott Devine, Edward Wang, and Edouard Bugnion, asked a different question: What if one physical machine could run many operating systems at once, safely and efficiently?

(symbolic): August 17, 2002, 2:14 PM – In a cramped Palo Alto lab, a VMware engineer performs the first live migration of a running web server from one physical host to another with zero downtime. The team celebrates with pizza. They call it VMotion . This moment—8.17.2.14—is later engraved on a small plaque in VMware’s Building 1. It represents the birth of the “always-on” data center. Part II: The EMC Acquisition & Hypervisor Wars (2004–2007) In December 2003, Diane Greene received an offer she couldn’t refuse. EMC Corporation , the storage giant, acquired VMware for $635 million. Many predicted death by corporate absorption. Instead, EMC left VMware largely independent, funding its R&D aggressively.