RO-14-ITIM upgrade and maintenance

Grid site are a challenging job, but in the same time a susceptible and full of surprises. Any failure is taking time to be repaired and restart. At the National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM) Cluj-Napoca, there is such a Grid site which need upgrades periods once or twice a year and maintenance periods one at two years. The infrastructure is stable but the most problem do appear at the software upgrades. This paper will present the last year problem and solution and future implementation at the Grid site so that, from now on, unexpected events won't harm the site and won't put the person responsible for it at risk periods and high unavailability regarding the functionality of the RO-14-ITIM Grid site.