Data Acquisition Shift
From Hall D Ops Wiki
The Data Acquisition System (DAQ)
GlueX DAQ system is based on CODA software toolkit.
DAQ consists of ~50 embedded hardware readout controllers known as ROCs running LINIX OS, communicating with many other (data transfer, control and monitoring) processes. Data is transported between processors using standard network protocols (TCP/IP).
Starting and stopping the DAQ System
1. Start DAQ processes in case of all HW is powered up (typical)
DAQ for standalone run of subdetector can be started in interactive mode, when all processes open x-terminal window. Running whole system in this mode is impractical, due to a large number of windows (50+), and in this case most of processes should be strted in backgroung, keeping only run control window.
