Table Of Contents - Red Hat ENTERPRISE LINUX 5 - GLOBAL FILE SYSTEM 2 Manual

Introduction
1. Audience ........................................................................................................................ v
2. Related Documentation ................................................................................................... v
3. Feedback ....................................................................................................................... vi
4. Document Conventions ................................................................................................... vi
4.1. Typographic Conventions ..................................................................................... vi
4.2. Pull-quote Conventions ....................................................................................... viii
4.3. Notes and Warnings ........................................................................................... viii
1. GFS2 Overview
1.1. Before Setting Up GFS2 ............................................................................................... 2
1.2. Differences between GFS and GFS2 ............................................................................ 3
1.2.1. GFS2 Command Names .................................................................................... 3
1.2.2. Additional Differences Between GFS and GFS2 .................................................. 3
1.2.3. GFS2 Performance Improvements ...................................................................... 5
2. Getting Started
2.1. Prerequisite Tasks ........................................................................................................ 7
2.2. Initial Setup Tasks ........................................................................................................ 7
3. Managing GFS2
3.1. Making a File System ................................................................................................... 9
3.2. Mounting a File System .............................................................................................. 12
3.3. Unmounting a File System .......................................................................................... 15
3.4. Special Considerations when Mounting GFS2 File Systems .......................................... 15
3.5. GFS2 Quota Management .......................................................................................... 15
3.5.1. Setting Quotas ................................................................................................ 16
3.5.2. Displaying Quota Limits and Usage .................................................................. 17
3.5.3. Synchronizing Quotas ...................................................................................... 18
3.5.4. Enabling/Disabling Quota Enforcement ............................................................. 19
3.5.5. Enabling Quota Accounting .............................................................................. 20
3.6. Growing a File System ............................................................................................... 21
3.7. Adding Journals to a File System ................................................................................ 22
3.8. Data Journaling .......................................................................................................... 24
3.9. Configuring atime Updates ........................................................................................ 25
3.9.1. Mount with relatime ..................................................................................... 25
3.9.2. Mount with noatime ....................................................................................... 26
3.10. Suspending Activity on a File System ........................................................................ 26
3.11. Repairing a File System ............................................................................................ 27
3.12. Bind Mounts and Context-Dependent Path Names ..................................................... 29
3.13. Bind Mounts and File System Mount Order ................................................................ 30
3.14. The GFS2 Withdraw Function ................................................................................... 32
A. Converting a File System from GFS to GFS2
B. Revision History
Index
v
1
7
9
35
37
39
iii