AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 644     Entry time: Sun Jun 9 13:32:48 2024
Author: TD 
Subject: [How To] Recover DAQ when one FEE64 stops sending data - short(er) version 
1) Select 'No Storage' [workspace 3, display 1, browser tab 'TapeServer']
    If already in 'No Storage' mode please ignore this step

2) STOP DAQ [workspace 2, display 1, browser tab 'Run Control']
   all FEE64s should change status from 'going' to 'stopped' *except* whichever FEE64(s) have a problem - typically their status is 'going' or 'error'

3) Restart Merger by selecting the Merger icon [workspace 3, display 2]
    terminal window showing the startup will popup

4) Setup Merger by selecting 'SETUP' [workspace 3, display 1, browser tab 'NewMerger Control']

5) Start Merger by selecting 'GO' [workspace 3, display 1, browser tab 'NewMerger Control']
     all data links will be inactive (red)

6) Start DAQ by selecting 'GO' [workspace 2, display 1, browser tab 'Run Control']
     check that DAQ is *actually* going - if not repeat 'GO'

7) Check data is being transferred to Merger and TapeServer

    Select 'Reload' [workspace 3, display 1, browser tab 'NewMerger Control']
     you should see a non-zero 'current merged data rate' and all links should show as green at least some of the time (requires observation over several reloads)

    Select 'Reload' [workspace 3, display 1, browser tab 'TapeServer']
     you should see 'Blocks written' and 'kb written' counters increase

8) Check AIDA data is being forwarded from the TapeServer to MBS [workspace 3, display 2, command terminal]

9) Unselect 'No Storage' [workspace 3, display 1, browser tab 'TapeServer']
    If already in 'No Storage' mode at the start of this procedure please ignore this step


   If you continue to have problems, please request expert assistance.
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