The paper describes the cooperation of JINR specialists and Czech colleagues in theˇeld of deployment and development of modern grid technologies within the framework of the WLCG global infrastructure project. Special attention is paid to the development and usage of monitoring systems. 'É ÉÓÖ ¶μ¸¢ÖÐ¥´ μ ¶ÒÉÊ¸μ¢³¥¸É´μ°• ¡μÉÒ¸ ¶¥Í¨ ²¨¸Éμ¢ ˆŸˆ¨Î¥Ï¸±¨Ì ±μ²²¥£ ¢ μ¡²-ɨ¢´¥¤•¥´¨Ö¨• §¢¨É¨Ö¸μ¢•¥³¥´´ÒÌ £•¨¤-ɥ̴μ²μ£¨°¢ • ³± Ì £²μ¡ ²Ó´μ£μ¨´Ë• ¸É•Ê±ÉÊ•´μ£μ ¶•μ¥±É WLCG. ¸μ¡μ¥ ¢´¨³ ´¨¥ ʤ¥²¥´μ • §• ¡μɱ¥¨¢´¥¤•¥´¨Õ¸¨¸É¥³ ³μ´¨É앨´£ .