Some facts on Wikipedia:
- Wikipedia uses round about 1,200 servers, see Tactical Monitoring Overview. These servers are located in Ashburn (Virginia), Tampa (Florida), San Francisco, and Amsterdam, see servers.
- Wikipedia has about 4.5 million pages, see statistics.
- Wikipedia uses Ubuntu exclusively for their MySQL/memcached database servers, their Apache/Squid servers, their PowerDNS servers. Image servers are Solaris servers.
- Wikipedia content can be download in one lump without pictures, see download and dumps. It’s about 10 GB bzip2-compressed.