1. Reliability/ Secure IOC / Outlook M. Clausen / DESY 1 Reliability Secure IOC DESY Outlook Matthias Clausen DESY/ MKS

2. Reliability/ Secure IOC / Outlook M. Clausen / DESY 2 Influence on IOC operations Possible sources Standard TCP connections Socket-based connections Channel Access Connections Internal System Resources

3. Reliability/ Secure IOC / Outlook M. Clausen / DESY 3 Trouble maker IOC Workstation: temp space # of possible socket connections # of possible processes / user Network: overall network load network configuration on IOC IOC: # of file descriptors utility programs using system resources complex locking mechanism in relation to record processing

4. Reliability/ Secure IOC / Outlook M. Clausen / DESY 4 Avoid Trouble maker Workstation:=> reduce # of users temp space # of possible socket connections=> increase system params # of possible processes / user- “ - Network: overall network load=> switched networks network configuration on IOC=> no gateway in boot params IOC: # of file descriptors=> increase to 256 utility programs using system resources=> avoid such programs complex locking mechanism in relation to record processing => reduce complexity

5. Reliability/ Secure IOC / Outlook M. Clausen / DESY 5 Future Trends EPICS - VME Fieldbus Graphic Applications EPICS Extensions Industrial Solutions EPICS Core More reliability and robustness Fieldbus I/O Special - (DESY) developments Reducing complexity EPICS Channel Access OPC Gateway Upgrade to CA V. 4 + + investigate

6. Reliability/ Secure IOC / Outlook M. Clausen / DESY 6 EPICS / SCADA... as an integrating factor VME UNIX PLC I/O UNIX NT SCADA NT CA-client NT SCADA PLC DCS/PLC OPC server VME I/O PLC CA-OPC server