If you obtain the 'unable to connect' from one, or more, of the FEE64s try the
following procedure *before* power-cycling/rebooting all of the FEE64s.
1) From the Firefox web browser (Workspace 2) close any tab related to the Merge program
typically 'MERGE: Control', 'Merger Link Data Rates' and 'MRGE Statistics'
2) Restart the Merge program by selecting the 'MergeServer' icon on the task bar at the top
of the display which the run the script /MIDAS/Merger/AIDA/Startup
Restarting the Merge program in this way will ensure that all merge program components
are removed and that the merge program starts with a timestamp of zero.
[Attempts to just restart manually which fail to remove ALL of the link tasks will cause
the data collection for those FEE64 links to an existing link task to fail (port already
It is also important that the Merge restarts with the time stamp at zero and with the link
queues all empty (which happens when the software is reloaded)]
3) From the Firefox web browser (Workspace 2) 'MERGE: Control' tab
The Merge state should now be 'Unknown'
Select Configure & Setup
This should immediately commence reading data from the links and sending merged data to the
TapeServer if enabled.
Select Toggle Merge Data Transfer State to toggle data transfer to the TapeServer
Select Toggle Merge Program Pause State to toggle input data to the Merge program
Based upon notes from VFEP (originally written for the IDS LyrTech system at CERN)