proxmox 2020 installation The majority of installation steps is being applied using the current salt states. The current version is proxmox ve 6.2 required packa...
How to check the state of your jobs High level overview via web browser If you want to monitor how and if your jobs progress, we have a poor men's high level ove...
Condor submit examples A couple of example condor scripts: Simply start script1 on 5 CPU cores on any node in the cluster with a fixed argument of 60. Unless spec...
Setting up XeonPhi (MIC) on hosts required kernel A very limited number of kernel is being supported. Usually Intel supports the the kernel of some RHEL and SLES...
Scientific Computing Lab Purpose The student should achieve a basic understanding of * time series data with stationary noise and signals * statistical co...
Brief cheat sheet for Adaptec arcconf CLI Most commands allow noprompt to force a command Gather information $ show adapter information: arcconf getconfig 1 a...
Step by step guide for OpenVPN setup For this special set up we will create a layer2 ethernet VPN connection into a virtual bridge. Start by installing some packa...
How to build an Atlas kernel 1 log into bob 1 change into the source code dir, e.g. cd /srv/kernel/linux stable 3.14 1 run git fetch to get the latest ch...
adding comments adding host comments * echo " `date %s` ADD_HOST_COMMENT;hostname;1;author;comment" /var/lib/icinga/rw/icinga.cmd * it is used on atla...
Quick steps on how to create a DOS USB bootable device 1 Download free dos image, e.g. http://www.freedos.org/download/download/fd11src.iso to /tmp/ 1 inser...
How to use the serial port multiplexer This system available under the IP 172.25.20.10 offers access to the serial console of the FortiSwitch 500. One can connect...
how to move a user from one SAMFS to another Pretty simple: mkdir /samqfs/TARGET/USER cd /samqfs/SOURCE/USER samfsdump PUf . /root/bin/mbuffer ( cd /samqfs...
How to change a failed disk in DDN's SFA10000 1 log into controller, e.g. fc10k1 1 show pool and show phy should tell, which pool and which disk failed, e.g...
abstract We buy the same kinds of nodes for the LISA and LIGO cluster. They share the same date core switch. The LISA part has to be able to handle parallel MPI j...
Lttng is a kernel tracer who allows kernel and userspace tracing sessions with a simple to use interface. Lttng provides the following features: produces CTF n...
Link aggregation on Solaris QFS clients the switch The HSM server are connected to switch 13 or switch 14. In order to find the right ports do a enable show fdb...
HTCondor Tips and Tricks how to use a regexp to run only an specific machines if you want to run only on nodes n0900 to n0949 the put this into your submit file ...
To make your Startscript LSB conform, there are only a few things to do. Your Script need the following informations: Provide at least ‘start, stop, restart, fo...
GCC native compile mode gcc knows the mtunenative option to auto detect what flags to use on the local machine. to find out the flags, run this gcc march=native...
What to do if /boot is too small if /boot is too small, try these steps to move it to the root partition # create copy of /boot on root partition mkdir /boot2 rsy...
How to install Postfix on Redmine server Install required packages apt get install postfix During the installation you will be asked a few questions: * Genera...
How to install Redmine Install required packages apt get install apache2 libapache2 mod passenger mysql server redmine redmine mysql During the installation you ...
Which server is hosting my $HOME? There are multiple ways to find out which of our storage devices are servinng your $HOME: Either use /mount/ on a head node by r...
First there is no direct way to migrate tickets with all information from gnats to redmine. A workaround is to migrate data to bugzilla and from bugzilla to redmi...
How to use Condor's dynamic slot model more efficiently Condor currently offers essentially two distinct ways to set up execute nodes to offer compute capabilitie...
How to manage the repository on bob This is all about the reprepro repository on bob.atlas.aei.uni hannover.de, which is upstream of UWM's Debian repo. We current...
/boot too small, how to fix? Be careful, if you mess things up, you might have an unbootable system which needs more care. 1. move /boot contents mkdir /boot2 ...
There are different ways to configure ucarp. The fastest way is to put the important configuration options in /etc/network/interfaces: At the end of the interface...
How to create a rescuesystem on an internal flashdrive: First step you build a VM with a minimal Debian based system (you can use and configure this minimal Syste...
In order to create init scripts on our Sun servers you need to go through the following steps: 1. Create a basic init script in /etc/opt/csw/init.d – They have th...
User centric topics and FAQ ATLAS/Documentation %SEARCH{ " C ategory.*?value=\".*? U ser.*?\"" web="all" scope="text" type="regex" nosearch="on" nototal="off" or...
Atlas Condor Setup This page tries to describe the setup of Condor within the Atlas cluster. Chances are that this page will be quite outdated from time to time, ...
Topics not yet answered %SEARCH{ " C ategory.*?value=\".*? T oDo.*?\"" web="ATLAS, ATLAS.Documentation, ATLAS.DocumentationTemplate" scope="text" excludetopic="...
FAQ/Documentation We try to answer frequently asked questions here as well as provide short documentation for various aspects and problems encountered. Please ref...
We try to answer frequently asked questions here as well as provide short documentation for various aspects and problems encountered. Please refer to our sub page...