We operate computing clusters and disk servers connected to international and national grid infrastructures. About 10000 computing cores are available for high energy physics, astroparticle physics and other projects. The total usable storage capacity on disks exceeds 5 PB. Computing resources are connected by 40 Gbps network to generic internet and by dedicated 100 Gbps link to LHCONE network, which is reserved for LHC experiments and some other projects, like Pierre Auger Observatory. The participation on several international projects ensures very high usage of relatively fast aging resources. If one project does not temporarily use its share due to for example migration to a new software version, other projects can use available capacities.
The biggest share is assigned to experiments ATLAS and ALICE, which record collisions on the Large Hadron Collider at CERN. These projects use Worldwide LHC Grid WLCG.
Another supported grid is Open Science Grid OSG used by neutrino experiments NOvA and DUNE. Astroparticle physics experiments Pierre Auger Observatory and Cherenkov Telescope Array utilize European grid EGI. All these grid projects can use the same resources, they differ only on some interfaces and monitoring.
