Revised Computing Capacity Requirements
August 2007 (revised 4 October 2007)

The documents linked below contain revised computing resource requirement summaries for the Tier-0 and the CERN Analysis Facilty (CAF), and the aggregate requirements for Tier-1s and Tier-2s. The estimates have been revised and extended to 2012 by ATLAS and CMS in July-August 2007, and by LHCb and ALICE in September 2007.

Detailed requirements
ALICE	ATLAS	CMS	LHCb

The previous set of requirements (October 2006) is available here.