Galin Iliev's blog

Software Architecture & Development

Finally up & running

As you might noticed this week the site was down. This was due to hosting upgrade to favorite IIS7 and some issues with dasBlog and one of it’s controls. Luckily I was able to fix it and also upgraded to dasBlog v2.2.

Hopefully there won’t be any downtime next… 10 years (next upgrade should be handled nicely :) ) Not like I am planning uptime 5 nines – 99.99999% :)

Now seriously:

If you planning your servers’ availability you might want to check how Microsoft.com Ops are doing it by taking a consultation from them for free. Why?! Because these are the results (as of 2005) – just imagine what are now:

*.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

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 and 750K 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
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