InformationWeek: VMware put ESX Server on a weight loss plan to get it down from two gigabytes to 32 megabytes in the just announced, embeddable, 3i version. How did you do that?
Rosenblum: We've typically included a version of Red Hat Linux in ESX Server. That's because the hardware manufacturers put little embedded processors to control the fans and other elements of their servers. They have agents reporting on their operation. They wouldn't write software that would allow those processors to interface to ESX Server, but they had to do it for Linux. So we shipped a full Red Hat operating system as our management console.
InformationWeek: And since you're embedding ESX Server in the hardware, you could throw out the console?
Rosenblum: Yes, now we're in a much better position. The footprint is smaller, the security exposure is smaller, we don't have to patch for security issues. We get rid of two gigabytes of code. You no longer have to wait for Linux to boot up. It [ESX Server 3i] starts relatively fast.