Show Table of Contents Hide Table of Contents English English Multi-page HTML Single-page HTML PDF ePub Configuring GFS2 file systemsProviding feedback on Red Hat documentation1. Planning a GFS2 file system deployment1.1. Key GFS2 parameters to determine1.2. GFS2 support considerations1.3. GFS2 formatting considerations1.4. Block allocation issues1.4.1. Leave free space in the file system1.4.2. Have each node allocate its own files, if possible1.4.3. Preallocate, if possible1.5. Cluster considerations1.6. Hardware considerations2. Recommendations for GFS2 usage2.1. Mount Options: noatime and nodiratime2.2. Configuring atime Updates2.3. VFS tuning options: research and experiment2.4. SELinux on GFS22.5. Setting up NFS over GFS22.6. Samba (SMB or Windows) file serving over GFS22.7. Configuring virtual machines for GFS23. GFS2 file systems3.1. GFS2 file system creation3.1.1. The GFS2 mkfs command3.1.2. Creating a GFS2 file system3.2. Mounting a GFS2 file system3.2.1. Mounting a GFS2 file system with no options specified3.2.2. Unmounting a GFS2 file system3.3. Backing up a GFS2 file system3.4. Suspending activity on a GFS2 file system3.5. Growing a GFS2 file system3.6. Adding journals to a GFS2 file system4. GFS2 quota management4.1. Configuring GFS2 disk quotas4.1.1. Setting up quotas in enforcement or accounting mode4.1.2. Creating the quota database files4.1.3. Assigning quotas per user4.1.4. Assigning quotas per group4.2. Managing GFS2 disk Quotas4.3. Keeping GFS2 disk quotas accurate with the quotacheck command4.4. Synchronizing quotas with the quotasync Command5. GFS2 file system repair5.1. Determing required memory for running fsck.gfs25.2. Repairing a gfs2 filesystem6. Improving GFS2 performance6.1. GFS2 file system defragmentation6.2. GFS2 Node Locking6.3. Issues with Posix locking6.4. Performance tuning with GFS26.5. Troubleshooting GFS2 performance with the GFS2 lock dump6.6. Enabling data journaling7. Diagnosing and correcting problems with GFS2 file systems7.1. GFS2 filesystem unavailable to a node (the GFS2 withdraw function)7.2. GFS2 file system hangs and requires reboot of one node7.3. GFS2 file system hangs and requires reboot of all nodes7.4. GFS2 file system does not mount on newly added cluster node7.5. Space indicated as used in empty file system7.6. Gathering GFS2 data for troubleshootingLegal Notice Configuring GFS2 file systems Red Hat Enterprise Linux 8A guide to the configuration and management of GFS2 file systemsRed Hat Customer Content ServicesLegal NoticeAbstract This guide provides information about configuring and managing GFS2 file systems for Red Hat Enterprise Linux 8. Providing feedback on Red Hat documentation Where did the comment section go?Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.