Versions Compared

Old Version 474

changes.mady.by.user Christopher O'Grady

Saved on

compared with

New Version 475

changes.mady.by.user Christopher O'Grady

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • 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).  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)
  • to see history run "lclshome": exposes archiver on the right hand side.  cpo couldn't bring this up (xcb error?) but weaver could
  • 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)

Trigger Delays

See also Matt's timing diagram on this page: Bypass Events

...