No. 122 (00260)

Family name : MOTOKI
Given name : Masakazu
Affiliation : Tohoku University
Abbreviation : 
E-mail address : motoki@awa.tohoku.ac.jp
Title : Data management and online monitor for KamLAND
Authors : Masakazu MOTOKI
Abstract : 
In January 22, 2002, KamLAND started the data-taking.  The KamLAND
detector is complicated system which consists of liquid scintillator,
buffer oil, spherical balloon etc.In order to keep data-taking safely,
we constructed monitoring system which gather detector status such as
balloon weight, liquid scintillator oil level etc.The monitoring system
consists of various network, LON, CAN and 1-Wire.  The physics-data size
is about 120GB/day and it is stored on LTO tape.The event reconstructed
data set which is used by physics study is about 100MB/day.