• N. Kamikubota, S. Yamada
  KEK, Ibaraki
• T. Iitsuka, S. Motohashi, M. Takagi, S.Y. Yoshida
  Kanto Information Service (KIS), Accelerator Group, Ibaraki
• H. Nemoto
  ACMOS INC., Tokai-mura, Ibaraki
• N. Yamamoto
  J-PARC, KEK & JAEA, Ibaraki-ken

The beam commissioning of the J-PARC Main Ring started in May, 2008. Data archive system has been developed using Channel Archiver, which is a tool developed and maintained in the EPICS community. Various machine parameters and status information of Main Ring have been recorded. The number of records registered extends 17,000 as of December, 2009. The archive data can be retrieved in a form of graphical representation by Web browser. In addition, the mechanism to provide bit-type information, such as interlock and on/off, in time series format is available. They have been used in daily operation of Main Ring. Addition to them, we are trying to develop a new scheme to record large waveform data of beam diagnostic signals. Status and progress of the archive system will be discussed.