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SVD on-call shift summary Jun. 3rd - 10th

This report summarizes the troubles encountered during the SVD on-call shift from June 3rd to 10th. Key issues included unexpected HD terminations within the SVD local side and multiple occurrences of fatal errors with PC DAQ systems. Key troubleshooting actions taken included restarting processes, performing power cycles, and resetting systems. Notably, PC12 experienced significant downtime due to repeated fatal errors, with further analysis directed to referenced details. Additionally, radiation dose levels at KEKB were monitored, influencing local run gain drop concerns, compared with previous incidents.

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SVD on-call shift summary Jun. 3rd - 10th

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  1. Rainer Stamen Hideyuki Kurashiro SVD on-call shift summaryJun. 3rd - 10th

  2. Troubles ・6/3 21:30~ <PC00 event# inconsistent troubles> Unexpected termination of HD in SVDlocal side ↓　restart a new run PC DAQ fatal : Event # inconsistent among thread(0x9) from:SVDSP00, minor e -> it happened 4 times! =>・Reconnection of PPCI cables of PC0(nezumi) ・FADC power cycle ・Higuchi Daemon reset ・6/8 8:30~ <PC12 stuck troubles> PC DAQ fatal and PC12 hung up many happened! => Ushiroda-san rebooted PC12 many times Kusaka-san guess PC DAQ fatal and reboot caused stuck of PC12. ** The detail of this trouble and trouble shooting are refered to ** ** [svd2_gemba_ml:1785,1786] (by Kusaka-san) **

  3. Radiation Dose KEKB: beam beam Test Total dose 99.0 kRad Week dose 3.9 kRad

  4. Local Run Gain drop => influenced by B0D-- troubles Compare with 0405262232, 0406080106 and 0406081433 ・0405262232: all chips became down ・0406080106: chip0 and 2 did ・0405262232: only chip2 did

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