Microsoft Word - tmail1.doc Mathematical Problems of Computer Science 30, 40--46, 2008. 40 Custom Software Installation and Availability Assurance of Computing Elements in LHC Grid 1 Karen Mkoyan Yerevan Physics Institute karen@yerphi.am Abstract: This paper describes the process of custom software installation and validation in the LHC Grid. It also provides set of scripts developed by author for availability assurance and overall monitoring of computing elements prior to installation, and a script for the installation and validation process itself. References [1] Tank and Spark http://grid-deployment.web.cern.ch/grid deployment/eis/docs/internal/chep04/SW_Installation.pdf [2] Lightweight middleware for Grid Computing http://glite.web.cern.ch/glite/ [3] Experiment Software Installation in LCG-2 http://grid-deployment.web.cern.ch/grid-deployment/eis/docs/ExpSwInstall/sw-install.pdf [4] “Custom Installer” script http://grid-web0.desy.de/ceat/custom-installer.tgz [5] Service Availability Monitor (SAM) http://sam-docs.web.cern.ch/sam-docs/ [6] Site Functional Tests http://goc.grid.sinica.edu.tw/gocwiki/Site_Functional_Tests [7] Grid Operations Centre http://grid-it.cnaf.infn.it/index.php?id=853&type=1 [8] Standalone version of SAM client http://wiki.egee-see.org/index.php/SEE-GRID_standalone_SAM [9] Slightly modified version of standalone SAM client http://grid-web0.desy.de/ceat/lightweight-ssam_source.tgz [10] CEAT at DESY http://grid-web0.desy.de/ceat/stats/ 1 This work has been supported by INTAS, Young Scientists Fellowship grant Ref. 05-110-4812 K. Mkoyan 41 гïáõÏ Íñ³·ñ³ÛÇÝ ÷³Ã»ÃÝ»ñÇ ï»Õ³¹ñáõÙÁ ¨ ѳßíÇã ë³ñù»ñÇ ýáõÝÏóÇáݳÉáõÃÛ³Ý Ñ³í³ëïdzóáõÙÁ LHC ·ñǹáõÙ Î. ØÏáÛ³Ý ²Ù÷á÷áõÙ Ðá¹í³ÍáõÙ Ýϳñ³·ñí³Í ¿ ѳïáõÏ Íñ³·ñ³ÛÇÝ ÷³Ã»ÃÝ»ñÇ ï»Õ³¹ñÙ³Ý ÁÝóóùÁ LHC ·ñǹáõÙ: Øß³Ïí³Í »Ý Íñ³·ñ³ÛÇÝ ÷³Ã»ÃÝ»ñ ï»Õ³¹ñÙ³Ý ÁÝóóùÇ ³íïáÙ³ï³óÙ³Ý ¨ ѳßíÇã ë³ñù»ñÇ ýáõÝÏóÇáݳÉáõÃÛ³Ý Ñ³í³ëïdzóÙ³Ý ¨ í»ñ³ÑëÏÙ³Ý Ñ³Ù³ñ: