[bingbing]

EVE Online runs on a single SQL Server 2008 instance:

http://wiki.eveonline.com/en/wiki/Tranquility#Database_Serve...

serving hundreds of thousands of users

[gouranga]

> At peak hours as of 2007 the database handles around 2-2.5k transactions per second, which generate roughly 40,000 input/output operations per second on the disks.

That's not much...

[jacques_chester]

They're complex transactions. Inserts against dozens of tables, selects from dozens of tables. We're not talking about glorified KV lookups here.