From 0929f93b3ea62e84693be65f5aef19801599d7d6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Laurent=20P=C3=A9tr=C3=A9?= <laurent.petre@cern.ch> Date: Fri, 21 Feb 2025 18:06:40 +0100 Subject: [PATCH] Document all CAEN mainframes used by GEM at P5 --- docs/expert/infrastructure/p5.md | 20 ++++++++++++++++++++ docs/setups-description.md | 4 ++-- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/docs/expert/infrastructure/p5.md b/docs/expert/infrastructure/p5.md index b82df87..7b6e1b9 100644 --- a/docs/expert/infrastructure/p5.md +++ b/docs/expert/infrastructure/p5.md @@ -100,3 +100,23 @@ The notification polices can be changed by opening a [Jira ticket](https://its.c ### Fibers The complete DAQ fiber mapping can be found in [this document](fiber-mapping.txt). + +## Mainframes + +The CAEN mainframes used to handle the low-voltage and high-voltage systems are +physically the responsibility of the TC group, while their controlling software +is the responsibility of the DCS group. Nevertheless, the low-level system +administration (e.g. networking, operating system maintenance,...) is taken +care of by the Online Systems group. + +Below is a list of the maintained mainframes. + +| Hostname | Location | DCS Numbering | Comments | +| --------- | --------- | -------- | --------- | +| `gem-lv-01` | S4F02 | LV | | +| `gem-hv-01` | S1G12 | HV #01 | GE-1/1 near side (sectors 28-09) | +| `gem-hv-02` | S1G12 | HV #02 | GE-1/1 far side (sectors 10-27) | +| `gem-hv-03` | S1F12 | HV #03 | GE+1/1 near side (sectors 28-09) | +| `gem-hv-04` | S1F12 | HV #04 | GE+1/1 far side (sectors 10-27) | +| `gem-ge21-hv-01` | S1F13 | HV #05 | GE+2/1 near side (sectors 15-05) | +| `gem-ge21-hv-02` | S1G13 | HV #06 | GE-2/1 near side (sectors 15-05) | diff --git a/docs/setups-description.md b/docs/setups-description.md index 72fea24..8b6329d 100644 --- a/docs/setups-description.md +++ b/docs/setups-description.md @@ -147,8 +147,8 @@ an exercise left for the reader. Newer Linux releases (e.g. AlmaLinux 9) disable the old and insecure algorithms or protocols by default. While technically a good thing, this newer default -prevents connecting to older nodes, such as SYx525 CAEN mainframes or non -patched CTP7. In such cases, you get errors such as: +prevents connecting to older nodes, such as non updated SYx525 CAEN mainframes +or non patched CTP7. In such cases, you get errors such as: * `ssh_dispatch_run_fatal: Connection to ww.xx.yy.zz port 22: error in libcrypto` * `Unable to negotiate with ww.xx.yy.zz port 22: no matching host key type found. Their offer: ssh-dss` -- GitLab