For 1,000 users tapping into a Linux server, the total cost is about a fifth to a half that of a Unix system, Kusnetzky said. The cost of administering a Linux system is about the same percentage of the overall cost for a Unix or Windows server, he added.
HP supplied Amazon’s Linux servers, large numbers of thin, rack-mountable models with Intel chips, said Mike Balma, marketing director for HP’s newly formed Linux Systems Operation. And Red Hat customized Linux for the servers.
Red Hat spearheaded Amazon’s switch over to Linux, said Billy Marshall, vice president of enterprise sales and marketing for the Durham, N.C., company.
“Amazon has been a customer of ours for over a year now,” he said. “Each of the transactions that goes through their systems touch our technology. Now they are locked down for the holiday season. They are very happy with the output that they are getting.”
(Full Story: How Linux saved Amazon millions – CNET News)