Hi, I'm Nelson, and I'm using MySQL on a site, but because of availabilty reasons, I'm thinking of creating a linux cluster, with Mosix and Global File System (GFS). The question is: if I put several mysql instances, working on the the same database (shared to all by a network storage device) will I have data integraty problems ?? How do the mysql daemons access the database files ? They use the OS features to control access ? Is it possible ? If a node of a cluster dies (and with it an instance of mysql) how can it affect data ?? I thank you for any suggestions and/or solutions. Sincerely Nelson Gomes - Dep. Internet (Portugal) a|cj Grupo Abril/Controljornal/Edipresse *: 21 415 21 60 *: [EMAIL PROTECTED]