Oracle Cluster File System 2 (OCFS2) is a general-purpose journaling file system that is fully integrated in the Linux 2.6 kernel and later. OCFS2 allows you to store application binary files, data files, and databases on devices on shared storage. All nodes in a cluster have concurrent read and write access to the file system. A user-space control daemon, managed via a clone resource, provides the integration with the HA stack, in particular OpenAIS and the DLM.