MySpace has managed to scale its Web site infrastructure to meet booming demand by using a mix of time-proven and leading-edge information technologies.
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Standard database server configuration consists of Hewlett-Packard HP 585 servers with 4 AMD Opteron dual-core, 64-bit processors with 64 gigabytes of memory (recently upgraded from 32). The operating system is Windows 2003, Service Pack 1; the database software is Microsoft SQL Server 2005, Service Pack 1. There’s a 10-gigabit-per-second Ethernet network card, plus two host bus adapters for storage area network communications.The infrastructure for the core user profiles application includes 65 of these database servers with a total capacity of more than 2 terabytes of memory, 520 processors and 130 gigabytes of network throughput.Source: MySpace.com user conference presentations