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Combined display of all available logs of T2B Wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

Logs
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  • 09:34, 12 March 2024 Admin talk contribs created page Jupyterlabt2b (Created page with "=== How to be able to work with jupyterlab on T2B using Linux personal machine === == Create file "config" in ~/.ssh directory of your personal machine. == Write into the config file: <pre> Host mlong HostName mlong.iihe.ac.be User your_username ForwardX11 yes ServerAliveInterval 100 LocalForward ???? localhost:????" </pre> ''???? is an identical 4-digit number you can invent yourself.''<br /> Save and close the config file. Now you can connect to...")
  • 10:32, 26 January 2024 Admin talk contribs deleted page User Using TensorFlow on GPU Nodes (content was: "== OBSOLETE == Although the T2B has GPUs, they are not supported by tensorflow. <br> Ohters have reported that with the kind of GPU's we have, the results given by tensorflow might be wrong!<br> We recommend to not use tensorflow on our GPUs", and the only contributor was "OLIVIER DEVROEDE omdevroe@vub.ac.be" (talk))
  • 14:10, 3 January 2024 Admin talk contribs created page File:Htop.png
  • 14:10, 3 January 2024 Admin talk contribs uploaded File:Htop.png
  • 14:09, 3 January 2024 Admin talk contribs created page HTCondorDebug (Created page with "== Why is my job still in queue ? == To see what is happening and why your jobs are not starting, use: <pre>> condor_q -better-analyze 2993001.0 -- Schedd: schedd03.wn.iihe.ac.be : <192.168.10.147:9618?... The Requirements expression for job 2993001.000 is (TARGET.Arch == "X86_64") && (TARGET.OpSys == "LINUX") && (TARGET.Disk >= RequestDisk) && (TARGET.Memory >= RequestMemory) && (TARGET.HasFileTransfer) Job 2993001.000 defines the following attributes: Disk...")
  • 10:11, 28 November 2023 Admin talk contribs created page File:Linux for beginners.pdf (Slides for the course: "Linux for beginners.)
  • 10:11, 28 November 2023 Admin talk contribs uploaded File:Linux for beginners.pdf (Slides for the course: "Linux for beginners.)
  • 09:59, 28 November 2023 Admin talk contribs created page Introduction to Linux (Created page with "This page contains an introduction to Linux given by one of the administrators from T2B: Stéphane Gérard. <br> If you are new or unexperienced in Linux, please take this course as proper use of the cluster is important and can only be achieved if you know the basics well. 1) Link to the slides 2) Link to the video")
  • 08:37, 5 October 2023 Admin talk contribs created page File:New certificate type.png
  • 08:37, 5 October 2023 Admin talk contribs uploaded File:New certificate type.png
  • 08:02, 9 May 2023 Admin talk contribs created page OpenID (Created page with "Grid facilities in general and CMS in particular ar slowly moving from a certificate/proxy based authentication towards an OpenID/token based authentication[BR] This page explains how to use them yourself at T2B == Getting an OpenID identity == * Go the CMS IAM service at https://cms-auth.web.cern.ch/ and log in * At the left, you can see you active tokens. At the moment, you have none. * Go to the M machines and issue the following command: <pre> oidc-gen --iss https://...")
  • 14:36, 5 May 2023 Admin talk contribs created page CorrectWorkflow (Created page with " '''This page describes what we consider a correct workflow.<br> '''It details how to efficiently use storage and compute resources at T2B, to enable fast analysis turnaround, but also avoid situations where a workflow will put stress on the cluster infrastructure and impact your fellow users.<br> === Introduction === You will see here a few different points and what we, with our knowledge of the underlying infrastructure but also just experience and user returns, know...")
  • 11:51, 4 April 2023 Admin talk contribs deleted page CephCrushMap (move to private wiki)
  • 11:46, 4 April 2023 Admin talk contribs deleted page DeployCEphWithCephadm (content was: "=== On your first MON: === ==== Pre-Bootsrapping ==== To do on all mon and osd machines, remove '''network.network_backend''' & '''[machine]''' from '''/usr/share/containers/containers.conf''': <pre>sed -i 's:^network_backend:##network_backend:' /usr/share/containers/containers.conf sed -i 's:^\[machine\]:##\[machine\]:' /usr/share/containers/containers.conf podman image trust set...", and the only contributor was "Admin" (talk))
  • 10:21, 22 February 2023 Admin talk contribs created page GPUatT2B (Created page with "Page in Construction ! == About GPUs at T2B == We do not have any GPUs at T2B. That does not mean you do not have access to some. === If you belong to a flamish university (VUB, UAntwerpen, UGent) === ---- <br>You have access to all VSC clusters, with quite some choice in GPUs. Have a look at all VSC clusters available and their hardware on [https://docs.vscentrum.be/en/latest/hardware.html this page].<br> -> For instance, the '''VUB Hydra''' cluster has 4 nodes wit...")
  • 09:42, 22 February 2023 Admin talk contribs created page ObsoletePages (Created page with " === Service work for CMS === *DDT *CMSSWDeployment * Prodagent for users * Writing tests in /store/temp/user on T2 SE's * CRAB Server installation * Basic validation of CRAB releases === Old PBS/Qsub Cluster [DEPRECATED] === **! Deprecated ! Old Qsub Cluster ** To the local resources ::* Sending unlimited number of Jobs :*GPUs|Using...")
  • 13:48, 9 February 2023 Admin talk contribs created page DeployCEphWithCephadm (Created page with "=== On your first MON: === ==== Bootsrapping ==== cephadm bootstrap --mon-ip 192.168.8.1 --allow-overwrite --allow-fqdn-hostname --log-to-file ==== Checking MGR modules ==== ceph mgr module ls Now the dashboard module is enabled by default ==== Getting address of dashboard (and prometheus) ==== ceph mgr services ==== Enabling SSL on dashboard ==== First put the certificate and the key in '''cert.crt''' and '''cert.key''' respectively <pre>ceph dashboard set-ssl-ce...")
  • 13:43, 23 November 2022 Admin talk contribs created page CERNGridUrls (Created page with "== CERN different Grid URLs to access EOS == CERN has different Grid URLs to access the EOS storage backend. Please try them to see if what you are looking for is present.<br> Also, do not hesitate to tell us if you found one more that is relevant for you! * your CERNBOX home (more info for crab users [https://twiki.cern.ch/twiki/bin/view/CMSPublic/CRAB3FAQ#Can_I_send_CRAB_output_to_CERNBO here]): :<pre>gfal-ls gsiftp://eosuserftp.cern.ch/eos/user/s/somename</pre> * p...")
  • 12:58, 12 October 2022 Admin talk contribs created page ResizingVMDisk (Created page with "==Goal== On this page, we will explain how to increase the size of a partition in a VM. The steps are the following: # Increase the size of the image # Increase the size of a partition # Resize the filesystem The details of the steps of this generic procedure will change depending on: * the type of backend storage (ONE datastore) for VM images (NFS share or Ceph); * the format of the image (qcow2, raw,...); * the type of partition (standard partitioning or LVM); * the ty...")
  • 13:46, 9 September 2022 Admin talk contribs created page T2B Deletion Policy (Created page with "This page details the way accounts from former users are handled at T2B. IMPORTANT: This policy is valid for all users of T2B, except for staff members. For them, a special system is in place that protects their data. === General information === T2B has a lot of users coming and leaving every year. They create a lot of data that might be important to the rest of the collaboration, even after they left. <BR> This makes the removal of old accounts and their associated fi...")
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