Sun Store migrated to T2000 Servers
This Sun BluePrints document (PDF) is a great overview of how Sun moved the Sun Store from 38 400Mhz UltraSPARC-II processors (spread between three E10K systems and one E6500) onto a single 8-core T2000 server, with a second identical T2000 for redundancy and backup.
One word: WOW !