| Paper |
Title |
Page |
| TPPA31 |
Redundant EPICS IOC in PC-based Unix-like Environment
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158 |
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- M. R. Clausen, G. Liu, B. Schoeneburg
DESY, Hamburg
- K. Furukawa
KEK, Ibaraki
- A. Kazakov
GUAS/AS, Ibaraki
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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.
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