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<p class="MsoNormal"><span style="font-size:11.0pt">Dear Bryan, Ben.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We discussed at the RC meeting yesterday whether MPD readout list could be modified to allow the DAQ to keep on running even if a single APV fail to configure properly at the beginning of a run.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Right now, we have had a lot of occurrence where one APV failure cause an MPD / fiber link error that a shift crew can not really debug or fix. A GEM or DAQ expert will ultimately be called and it would results
to this APV been disabled. This usually results in a lot of wasted beam time during the shift without even fixing the APV problem.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">So it will be more efficient if the APV25 configuration fail is ignored and allow the DAQ to continue with some warning that will allow the shift crew to alert the GEM expert who can take a look at the issue
when there is an opportunity. This way, there is no beam time lost. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Maybe the DAQ configuration will be allow to crash only if a number of APV25 (that we decide on, maybe 3 or 5 …), or all APVs on a backplane or MPD all fail to configure which would indicate a more serious
problem. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I was wondering if it is possible to implement such scheme in the MPD readout list
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Best regards <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Kondo<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> Sbs_gems <sbs_gems-bounces@jlab.org>
<b>On Behalf Of </b>Holly Szumila-Vance<br>
<b>Sent:</b> Monday, December 20, 2021 4:12 PM<br>
<b>To:</b> sbs_gems@jlab.org<br>
<b>Subject:</b> [Sbs_gems] No SBS GEM meeting on Wednesday this week<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">There will be no SBS GEM meeting this Wednesday. Please look for updates by e-mail.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Enjoy the holidays, and see you in the New Year!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">-Holly<o:p></o:p></span></p>
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