#FILE SYSTEM COMPATIBLE WITH WINDOWS AND MAC AND LINUX KEYGEN#The major benefit is that the changes to the file system are recorded in a journal file. The database server should be able to control all other file and data access. Data files should be accessible only for the database owner. If the specific file permissions are not set properly, the Oracle RDBMS does not function properly. Oracle RDBMS and the database files require special file permissions, which are not available on some file systems (such as VFAT). One vendor that supplies a supported network file system is Network Appliance, and they are using a modified NFS protocol. For example Standard NFS is UDP based, which is a network protocol that does not include an acknowledgment mechanism. The file system must acknowledge the write operations. Oracle does not support files on file systems that do not have a write-through-cache capability. For example if there is a risk that data can get corrupted, lost or compromised, a fast file system should not be used. When choosing a file system, performance is not the most important point. Multi-node (RAC): OCFS, raw, NFS-based storage systems (e.g.Note that any filesystem issues are need to be resolved by the Linux vendor. Single node: Any filesystem that is supported by the Linux vendor.In summary, the recommended filesystems are: XFS is designed for high scalability and provides near native I/O performance even when the file system spans multiple storage devices.Unlike the previous release (OCFS), OCFS2 is a general-purpose file system that can be used for shared Oracle home installations making management of Oracle Real Application Cluster (RAC) installations even easier. It is an extent based, POSIX compliant file system. OCFS2 is the next generation of the Oracle Cluster File System for Linux.OCFS volumes can span one shared disk or multiple shared disks for redundancy and performance enhancements. OCFS eliminates the requirement for Oracle database files to be linked to logical drivers. Oracle Cluster File System (OCFS) is a shared file system designed specifically for Oracle Real Application Cluster (RAC).It provides features for large filesystems, performance, increased limits, and reliability. ext4 was developed as the successor of ext3. ext3 is the default filesystem for RHEL 3 and 4. ext3 is simply the enhanced ext2 filesystem with a journaling feature. ext2 was the default file system under the 2.2 kernel.
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