Abstract: The storage virtualization solution’s MDS (MetaData Server) uses MySQL to store metadata and prepares for failures using MySQL replication. However, MySQL replication does not provide full synchronous mode, it provides only asynchronous mode and semi-synchronous mode. Therefore when a failure occurs in the active MDS node there is a possibility that data that is not replicated may be generated even if the service is moved to the standby MDS node. To solve this problem, change the redundancy scheme of MySQL using DRBD (Distributed Replicated Block Device) available on Linux.