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  • Look on main hutch grafana page at upstream-link-status graph
  • ssh mcclogin (Ken Brobeck should be contacted to get access, in particular may need access to softegr account).
  • ssh softegr@lcls-srv01 (Matt chooses "user 0")
  • look at fanouts that are upstream of xpm:0.  three layers to get all the way back to the source (the TPG which runs the whole accelerator, has a clock input from master source.  clock could conceivably go away).  See below for example of this working on rix-daq.  Moving upstream:
    • caget TPF:LTU0:000:RXLNKUP (immediately upstream)
    • caget TPF:IN20:000:RXLNKUP
    • caget TPF:GUNB:000:RXLNKUP (fanout that TPG drives)
    • caget TPG:SYS0:1:TS (prints out timestamp from TPG, which is a check to see that TPG is running)
    • caget TPG:SYS0:1:COUNTBRT (should be 910000 always)an example of it working:
  • to see history run "lclshome": exposes archiver on the right hand side (see picture in LCLS1 section above)
  • see MCCEpicsArchiverAccess for a video on how to access the MCC epics archiver (currently the above values are not in the archiver, but Matt is going to ask Carolina to add them)

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