kopipeszt a Microsoft.com Operations Blog-bol:

"We run the 4^th largest web site in the world. Here are some quick facts about what we run.

*.microsoft.com:

• 3 Data Centers
• 1606 Data Center Servers
• 506 Servers in Labs
• 111 Web Sites
• 1069 Databases
• 1000’s of Web Applications
• 80+Gbit/sec Network Traffic

http://www.microsoft.com

• 13 million unique users/day
• 70 million page views per day
• 10,000 requests/sec, 300 concurrent connection on 80 servers
• 350 Vroots 

Windows Update/Download:

• 150 million unique client scans/day
• 12,000 ASP.NET requests/sec
• 500K concurrent connections
• 1 Billion Downloads and7 50K client installs in 2 weeks (April 2006)
• 4Gbit/sec Web Site Egress (Web Pages Only…No Downloads)
• 20+ Billion Downloads in 2005…Routinely 150M+/Day"