DATA ARCHIVING SYSTEM IN KEKB ACCELERATORS CONTROL SYSTEM

A data archiving system "KEKBLog" was developed in KEK for KEKB accelerators. KEKBLog consists of a simple archiving program, which is based on EPICS channel access protocol, and retrieving tools. Software structure of KEKBLog and hardware configuration are presented. KEKBLog has accumulated large amount of archive data and has served them for daily operation of KEKB accelerators since 1998, the beginning of the commissioning of KEKB. Many application programs that access to the archive data has been developed by the commissioning group. Current status of the usage of KEKBLog and recent progress are also reported.