Abstract
The BESIII experiment has got about 1PB raw data and 1PB DST data from 2009 to date, so how to manage these data and condition data well is very important. The BESIII data managment system has run successfully for ten years, which has offered a full-featured, time-tested approach to BESIII offline and physics users. We designed an almost perfect structure for the system and had good backup and maintance strategy.
Highlights
Beijing Electron Positron Collider II (BEPC II) is located at Beijing China [1]
The third generation of the Beijing Spectrometer (BES III) is a multi-purpose detector operated at the Beijing electron-positron collider (BEPC) II for physics at tau-charm energy region
The BES III detector consists of four sub-detectors: the Drift Chamber (DC), Time-Of-Flight counters (TOF), the Electromagnetic Calorimeter (EMC), and Muon Counters (MuC)
Summary
Beijing Electron Positron Collider II (BEPC II) is located at Beijing China [1]. The third generation of the Beijing Spectrometer (BES III) is a multi-purpose detector operated at the Beijing electron-positron collider (BEPC) II for physics at tau-charm energy region. There are about one PB Raw data and one PB DST Data from 2009, so how to manage these data and condition data well is very important. The original raw data from DAQ are written into files on a hard disk of the DAQ server. These files are copied to tapes as soon as possible, these data in tapes will be written to disk file system of offline servers, these data will be available to offline and physics users
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