From fe3ddae0a9bbd835d7b04f0ae8ee3303b90760a1 Mon Sep 17 00:00:00 2001 From: Peter Heywood Date: Tue, 11 Feb 2025 17:51:15 +0000 Subject: [PATCH] Add weekly login node at risk period to usage - New section on usage about the weekly at risk period - Annoucnment now hihglights the at risk period - New warning in the 'Login' section of the usage docs with an xref - Adjusts previous warning in 'Login' section to Important Closes #212 --- _static/js/custom.js | 2 +- conf.py | 2 +- usage/index.rst | 27 ++++++++++++++++++++++++++- 3 files changed, 28 insertions(+), 3 deletions(-) diff --git a/_static/js/custom.js b/_static/js/custom.js index c97d66b..3686537 100644 --- a/_static/js/custom.js +++ b/_static/js/custom.js @@ -7,7 +7,7 @@ This does not currently support linking outside of the documentation website. window.onload = function () { expectedAnnouncementContent = "Using Bede"; expectedAnchorContent = "Using Bede"; - optionalTargetID = "grace-hopper-pilot"; // null if linking to page + optionalTargetID = "usage-weekly-at-risk"; // null if linking to page fullAnnouncementAnchor = false; var elements = document.getElementsByClassName("bd-header-announcement"); for (var i = 0; i < elements.length; i++) { diff --git a/conf.py b/conf.py index 3c90c9a..84fed6d 100644 --- a/conf.py +++ b/conf.py @@ -94,7 +94,7 @@ # Code highlighting theme for dark mode "pygment_dark_style": "github-dark-high-contrast", # Add an announcement bar, visible at the top of each page. - "announcement": "3 additional (6 total) NVIDIA Grace-Hopper nodes (GH200 480) are now available. See Using Bede", + "announcement": "Weekly login-node \"at risk\" period 8am-10am on Tuesdays. See Using Bede", # Add the traditional footer theme and sphinx acknowledgements "extra_footer": f"

 Built with Sphinx {sphinx.__version__} using a theme by the Executable Book Project.

" } diff --git a/usage/index.rst b/usage/index.rst index 51cfcd8..f3e90aa 100644 --- a/usage/index.rst +++ b/usage/index.rst @@ -29,12 +29,16 @@ fronts the two ``ppc64le`` login nodes, ``login1.bede.dur.ac.uk`` and ``login2.bede.dur.ac.uk``). SSH or X2GO should be used for all interaction with the machine (including shell access, file transfer and graphics). -.. warning:: +.. important:: Please use an SSH client and **not** X2GO the first time you ever log in to Bede, or immediately after a password reset. Your MFA token will be generated, but X2GO will not show it to you. +.. warning:: + + Login nodes are subject to a weekly "at risk" period every Tuesday from 08:00 to 10:00 (from 2025-02-25). See :ref:`usage-weekly-at-risk` for more details. + The login nodes are shared between all users of the service and therefore should only be used for light interactive work, for example: downloading and compiling software, editing files, preparing jobs and @@ -85,6 +89,27 @@ please contact `support <../faq/#faq-helpsupport>`__ for options. If you are finding that you are having to use your password and a MFA token too many times, we have provided some tips on `how to reduce the frequency that MFA is required <../faq/#faq-reducemfa>`__. +.. _usage-weekly-at-risk: + +Weekly "at risk" period for login nodes +--------------------------------------- + +A weekly "at risk" period has been introduced for Bede's login nodes, every Tuesday morning from 8am to 10am (from 2025-02-25) for regular maintenance tasks. + +This will sometimes involve interruptions, such as a reboot, in which case logged-in users will be warned on their terminal screen shortly before they are disconnected. + +During this time: + +* *Login sessions* and so *interactive jobs* may be ended. +* *File transfers* to (or from) Bede may be ended. +* Batch jobs and compute nodes will continue to run as normal. + +Why we are doing this: + +* The timely application of security updates is increasingly important. The new "at risk" period will help us keep Bede and your work secure. +* The login nodes fill up with mislaid user processes over time, increasing load and slowing down your work. The new "at risk" policy will help improve Bede's interactive performance. +* The new "at risk" period will reduce the number of routine emails we send, which will help your Inbox. + .. _usage-x2go: X2GO