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Kazakov, A.

Paper Title Page
TPPA31 Redundant EPICS IOC in PC-based Unix-like Environment 158
  • M. R. Clausen, G. Liu, B. Schoeneburg
    DESY, Hamburg
  • K. Furukawa
    KEK, Ibaraki
  • A. Kazakov
    GUAS/AS, Ibaraki
  Redundant EPICS IOC is being actively developed at DESY in order to achieve high availability. Current development focuses on VME vxWorks environment for cryogenics controls. However, many facilities use PC-architecture and unix-like systems as Linux and FreeBSD. These facilities require high availability and redundancy as well. So this paper will describe the implementation of EPICS redundant IOC in PC-based environment with Linux and FreeBSD. This work will be done by porting Redundancy Monitor Task (RMT) and Continuous Control Executive (CCE). RMT is responsible to make a decision when to fail-over; it is rather independent and may be used in a wide range of applications. In the future it can be employed in caGateway to add redundancy. CCE is aimed to synchronize two RSRV-based IOC servers.