Overview: Back End System
levent building system (QUAD Opteron-based machine and corresponding software supporting multiprocessor and multithreaded environment) will be upgraded; new event building will be performed in 2 stages: 7 builders at first stage (6 sectors and central detectors) and final building at second stage; QUAD- or 8-CPU-machines similar to existing one will be sufficient; software development is required to support multistage building
levent recording system (SUN Sparc SMP, RAID system and corresponding software) will be replaced by faster machine and disks to process increased data rate
lnetworking system: some improvements will be done to increase bandwidth and the number of clients