Red Hat ENTERPRISE LINUX 5 - GLOBAL FILE SYSTEM 2 Guida di Installazione Pagina 4
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Table of Contents
Introduction ...............................................................................................................vi
1. Audience .......................................................................................................vi
2. Related Documentation ..................................................................................vi
3. Document Conventions ................................................................................. vii
4. Send in Your Feedback ................................................................................ viii
5. Recommended References .......................................................................... viii
1. GFS Overview ....................................................................................................... 1
1. New and Changed Features ........................................................................... 1
2. Performance, Scalability, and Economy ........................................................... 2
2.1. Superior Performance and Scalability ................................................... 2
2.2. Performance, Scalability, Moderate Price .............................................. 3
2.3. Economy and Performance .................................................................. 3
3. GFS Functions ............................................................................................... 4
4. GFS Software Subsystems ............................................................................. 5
5. Before Setting Up GFS ................................................................................... 6
2. System Requirements ............................................................................................ 8
1. Platform Requirements ................................................................................... 8
2. Red Hat Cluster Suite ..................................................................................... 8
3. Fencing ......................................................................................................... 8
4. Fibre Channel Storage Network ...................................................................... 9
5. Fibre Channel Storage Devices ....................................................................... 9
6. Network Power Switches ................................................................................ 9
7. Console Access ............................................................................................10
8. Installing GFS ...............................................................................................10
3. Getting Started .....................................................................................................11
1. Prerequisite Tasks ........................................................................................11
2. Initial Setup Tasks .........................................................................................11
4. Managing GFS .....................................................................................................13
1. Making a File System ....................................................................................13
2. Mounting a File System .................................................................................16
3. Unmounting a File System .............................................................................18
4. GFS Quota Management ...............................................................................18
4.1. Setting Quotas ...................................................................................19
4.2. Displaying Quota Limits and Usage .....................................................20
4.3. Synchronizing Quotas ........................................................................21
4.4. Disabling/Enabling Quota Enforcement ................................................22
4.5. Disabling/Enabling Quota Accounting ..................................................23
5. Growing a File System ..................................................................................24
6. Adding Journals to a File System ...................................................................26
7. Direct I/O ......................................................................................................28
7.1. O_DIRECT ........................................................................................28
7.2. GFS File Attribute ...............................................................................28
7.3. GFS Directory Attribute .......................................................................29
8. Data Journaling .............................................................................................29
9. Configuring atime Updates ............................................................................30
iv
- Global File System 1
- (Red Hat Global File System) 2
- Table of Contents 4
- 1. Audience 6
- 2. Related Documentation 6
- 3. Document Conventions 7
- 4. Send in Your Feedback 8
- 5. Recommended References 8
- Chapter 1. GFS Overview 10
- 2.3. Economy and Performance 12
- 3. GFS Functions 13
- 4. GFS Software Subsystems 14
- and gfs2 15
- 1. Platform Requirements 17
- 2. Red Hat Cluster Suite 17
- 3. Fencing 17
- 6. Network Power Switches 18
- 7. Console Access 19
- 8. Installing GFS 19
- Chapter 3. Getting Started 20
- Chapter 4. Managing GFS 22
- Examples 23
- Complete Options 23
- directory 25
- Complete Usage 25
- 3. Unmounting a File System 27
- 4. GFS Quota Management 27
- 4.1. Setting Quotas 28
- Command Output 29
- 4.3. Synchronizing Quotas 30
- Comments 32
- 5. Growing a File System 33
- directory is expanded 34
- 7. Direct I/O 37
- 7.3. GFS Directory Attribute 38
- 8. Data Journaling 38
- 9. Configuring atime Updates 39
- 9.2. Tune GFS atime Quantum 40
- are dis 41
- 12. Repairing a File System 43
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