Page History

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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:LTU0:1:RXLNKUP (immediately upstream)
  • caget TPF:IN20:1:RXLNKUP
  • caget TPF:GUNB:1: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)
• to see history run "lclshome" on machines like lcls-srv01: exposes archiver on the right hand side (see picture in LCLS1 section above).  NOTE: Remember to click "PLOT" in the middle of the right side of the archive viewer.  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)

(ps-4.5.26) rix-daq:scripts> caget TPF:GUNB:1:RXLNKUP
TPF:GUNB:1:RXLNKUP             1
(ps-4.5.26) rix-daq:scripts> caget TPF:IN20:1:RXLNKUP
TPF:IN20:1:RXLNKUP             1
(ps-4.5.26) rix-daq:scripts> caget TPF:LTU0:1:RXLNKUP
TPF:LTU0:1:RXLNKUP             1
(ps-4.5.26) rix-daq:scripts> caget TPG:SYS0:1:COUNTBRT
TPG:SYS0:1:COUNTBRT            910000
(ps-4.5.26) rix-daq:scripts> 

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