WebEnabled Medm Matt Bickley Controls Group OnCall Support
Web-Enabled Medm Matt Bickley Controls Group
On-Call Support • Controls staff provides support 24/7 • Home computers are provided by the lab for supporting the accelerator • Problems are addressed more quickly by ready access to operations tools • Minimizing delays makes support tasks less frustrating for support providers • Medm is the principal user interface Controls Group
Problems with off-site support • Displaying X-based software locally from off-site is too slow • Don’t want to have each user maintain their own copies of the (5000+) screen files Controls Group
Starting up Medm (dial-in) Dial-in (56 K) Home Xserver Computer Controls Medm Computer X traffic IOC Controls Group IOC
Starting up Medm (Internet) Home Xserver Computer Cable Modem X traffic Externally Ssh “Visible” (tunneling) Computer Lab network IOC Controls Group Controls Medm Computer IOC
Starting up Web-Medm (dial-in) Web Server Home Medm Computer Dial-in (56 K) HTTP Channel Access IOC Controls Group IOC
How to configure for using it • Add to EPICS_DISPLAY_PATH: http///webserver. jlab. org/medm • Related displays must be relative • Link to medm directory under webserver’s html root directory Controls Group
Conclusions • Provides significantly better performance for off-site support • Good way to provide operator interface to computer without disk access Controls Group
- Slides: 8
