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DGS (General)
takahiro.yamamoto - 23:41 Wednesday 05 June 2019 (9104) Print this report
Weekly maintenance on Jun. 5, 2019
[Oshino, Yamamoto]

We performed maintenance for k1ioo, k1lsc, and k1srm.

k1ioo:
We installed a new whitening filter chassis. It was inserted between the monitor port of the common mode servo and the AA filter.
All the zero/pole filters and gain stages is turned off and they are managed by config board.


k1lsc0:
Two BIO cards were added and card shuffle problem was already solved.

k1srm:
We reboot the front-end computer of k1srm for fixing the Dolphin connection problem.


Memo:
We noticed that when Dolphin is disabled on k1lsc0, k1als0 and k1srm are also disabled and when it is disabled on k1ioo, k1omc0 and k1bs are also disabled,
Unfortunately kernel panic often occurs on k1srm and k1omc0 and kernel panic causes Dolphin glitches. After Dolphin glitches, we must disable Dolphin on k1lsc, k1ioo, etc. and must reboot them. We fell the Dolphin hell today...

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