<!-- keep this as a security measure: #uncomment if the subject should only be modifiable by the listed groups * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.CMSAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.CMSAdminGroup #uncomment this if you want the page only be viewable by the listed groups # * Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.CMSAdminGroup,Main.CMSAdminReaderGroup --> %TOC% ---+ Policies for the resource allocation on the PSI Tier-3 These policies were agreed upon in the [[SteerBoardMeeting01][first]] and [[https://wiki.chipp.ch/twiki/bin/view/CmsTier3/SteerBoardMeeting02][second]] Steering Board meetings. <!-- 1 We organize the users along [[PhysicsGroupsOverview][Physics Groups]] --> 1 For the purpose of the cluster organization, *every user must be mapped exactly to one physics group* (even though the user may work for several). <!-- 1 The *resources available to a physics group* consist of the added up resources of its members. How these resources are used is up to the physics group's internal organization.--> 1 Each physics group has one *Responsible User* who * takes care of managing the group's resources (e.g. deciding what data sets to delete). * is the single point of contact for the cluster administrators for organizational issues. * can propose a guest user 1 The resources are equipartitioned between users. %ENDSECTION{name="UisPerGroup" type="section"}% ---++ Home policies ---+++ Home directory policies Every user has %GREEN% home directory /t3home/${USER} with default 10GB quota %ENDCOLOR% for development of software, documentation, etc.</br> It's configured with 1 daily, 1 weekly and 1 monthly snapshots placed beyond quota limit at /t3home/username/.snapshot </br> To check your quota allotment on /t3home use the following command: <pre> ~% quota -s -f /t3home Disk quotas for user username (uid user_id): Filesystem blocks %GREEN%quota %ENDCOLOR% limit grace files quota limit grace t3nfs:/t3/home1 704M %GREEN% 10240M %ENDCOLOR% 11264M 927 4295m 4295m </pre> ---+++ /work directory policies For big size files there is %GREEN%/work/${USER} volume with effective space ~100GB%ENDCOLOR% organized with 2 daily snpashots. </br> =/shome= is a link to =/work= </br> Snapshots are a part of work quota. In a case quota is completely filled only administrator is in charge to help. Requests must be sent to the admin mailing list.</br> To control /work used space use =du= command like: =du -hs /work/${USER}= ---++ /scratch usage on UI Sometimes shared =/scratch= partition of UIs and WNs are full because some user had filled them with big and later forgotten files or simply because a job went crazy. There was a clear users requirement to manage =/scratch= space (on UI nodes) by themselves, so that there is no automatic cleaning on UI nodes. Please clean it timely and remember that */scratch is the least protected area and doesn't dedicated to keep important data for a long*. If you discover an abuse, write or call your colleague and invite him/her to cleanup. Otherwise your peers could be blocked. Administrators can help when group members are still interested in outdated user files presence in scratch. In this case the owner has to be explicitly changed to a new responsible person. </br> =/tmp= and =/var= partitions should be used for OS needs and cleaned automatically.
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Topic revision: r68 - 2020-03-24 - NinaLoktionova
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