Autosave Lab
This procedure summary guides you through building and running the IOC application Camonitor. Learn how to set a value that cycles from 0 to 10, change the limit to 5, restart the application, and preserve the limit change using autosave. Follow step-by-step instructions to ensure your changes are maintained across restarts.
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Presentation Transcript
Autosave Lab John Sinclair ORNL/SNS sinclairjw@ornl.gov January 2019 Managed by UT-Battelle for the Department of Energy
Procedure Summary Build and run the IOC application Camonitor one:ramp Note that the value cycles from 0 to 10 Caput one:limit 5 Now the value cycles from 0 to 5 Stop and restart the IOC application The change to one:limit is lost autosave can fix this Reconfigure with autosave and repeat The change to one:limit will be preserved across restarts 2 Managed by UT-Battelle for the Department of Energy
Details (1/4) Open three terminal windows Window 1 - build and run the IOC application cd /home/training/epics-train/jwsExamples/autosave make cd iocBoot/iocasExample1 chmod +x st.cmd ./st.cmd Window 2 monitor one:ramp camonitor one:ramp Window 3 modify one:limit caput one:limit 5 3 Managed by UT-Battelle for the Department of Energy
Details (2/4) Window 1 stop and restart the IOC application exit ./st.cmd Window 2 After camonitor reconnects, notice that modification to one:limit has been lost 4 Managed by UT-Battelle for the Department of Energy
Details (3/4) Window 1 reconfigure IOC with autosave exit cd ../.. Edit the following files and uncomment autosave related content search for AUTOSAVE configure/RELEASE 1 line asExample1App/Db/one.db 2 lines asExample1App/src/Makefile 2 lines iocBoot/iocasExample1/st.cmd 18 lines (some are comments within comments) make clean uninstall make 5 Managed by UT-Battelle for the Department of Energy
Details (4/4) Window 1 start the IOC application cd iocBoot/iocasExample1 ./st.cmd Window 2 monitor one:ramp camonitor one:ramp Window 3 modify one:limit caput one:limit 5 Window 1 stop and restart as before Window 2 Wait for reconnect Now the modification to one:limit is preserved Examine and explore content of files /tmp/ioc1* 6 Managed by UT-Battelle for the Department of Energy
