Global File System

Global File System

Red Hat Global File System

Legal Notice

May 2008

Revision History
Revision 5.2-5 Tue Mar 15 2008 Michael Hideo
Content Update

This book provides information about installing, configuring, and maintaining Red Hat GFS (Red Hat Global File System) for Red Hat Enterprise Linux 5.2.

1. Audience
2. Related Documentation
3. Document Conventions
4. Feedback
1. GFS Overview
1.1. New and Changed Features
1.2. Performance, Scalability, and Economy
1.2.1. Superior Performance and Scalability
1.2.2. Economy and Performance
1.3. GFS Software Components
1.4. Before Setting Up GFS
2. Getting Started
2.1. Prerequisite Tasks
2.2. Initial Setup Tasks
3. Managing GFS
3.1. Creating a File System
3.2. Mounting a File System
3.3. Unmounting a File System
3.4. Displaying GFS Tunable Parameters
3.5. GFS Quota Management
3.5.1. Setting Quotas
3.5.2. Displaying Quota Limits and Usage
3.5.3. Synchronizing Quotas
3.5.4. Disabling/Enabling Quota Enforcement
3.5.5. Disabling/Enabling Quota Accounting
3.6. Growing a File System
3.7. Adding Journals to a File System
3.8. Direct I/O
3.8.1. O_DIRECT
3.8.2. GFS File Attribute
3.8.3. GFS Directory Attribute
3.9. Data Journaling
3.10. Configuring atime Updates
3.10.1. Mount with noatime
3.10.2. Tune GFS atime Quantum
3.11. Suspending Activity on a File System
3.12. Displaying Extended GFS Information and Statistics
3.12.1. Displaying GFS Space Usage
3.12.2. Displaying GFS Counters
3.12.3. Displaying Extended Status
3.13. Repairing a File System
3.14. Context-Dependent Path Names

Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-5 because CentOS-5 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-5 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.