The Wikimedia Foundation is in the process of migrating its servers to the Ubuntu Linux distribution. Wikimedia's move to Ubuntu is part of an effort to simplify administration of the organization's 400 servers, which previously ran a mix of various versions of Red Hat and Fedora.
Wikimedia's adoption of Ubuntu could help increase the distribution's visibility in the Linux server market and demonstrate its viability in large-scale deployments.
Wikimedia's entire collection of web sites (statistics slide)—which includes Wikipedia, Wikisource, Wikiquote, Wikinews, and several others—serves up roughly 10 billion page views per month. At its peak, traffic can sometimes reach 50,000 HTTP requests per second. The organization's hardware budget to date is roughly $1.5 million, and it spends $35,000 per month on bandwidth and physical hosting. All of its technical infrastructure is managed by a small IT staff consisting of only four paid employees and three volunteers.