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ENTERPRISE LINUX 5.1 - LVM ADMINISTRATION
Red Hat ENTERPRISE LINUX 5.1 - LVM ADMINISTRATION Manuals
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Red Hat ENTERPRISE LINUX 5.1 - LVM ADMINISTRATION manual available for free PDF download: Manual
Red Hat ENTERPRISE LINUX 5.1 - LVM ADMINISTRATION Manual (108 pages)
Brand:
Red Hat
| Category:
Software
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Table of Contents
Table of Contents
3
Introduction
7
About this Guide
7
Audience
7
Software Versions
7
Related Documentation
7
Feedback
8
Document Conventions
8
Typographic Conventions
8
Pull-Quote Conventions
10
Notes and Warnings
11
The LVM Logical Volume Manager
13
Logical Volumes
13
LVM Architecture Overview
14
Running LVM in a Cluster
15
Document Overview
16
LVM Components
17
Physical Volumes
17
LVM Physical Volume Layout
17
Multiple Partitions on a Disk
18
Volume Groups
18
LVM Logical Volumes
19
Linear Volumes
19
Striped Logical Volumes
20
Mirrored Logical Volumes
22
Snapshot Volumes
22
LVM Administration Overview
25
Creating LVM Volumes in a Cluster
25
Logical Volume Creation Overview
25
Growing a File System on a Logical Volume
26
Logical Volume Backup
26
Logging
26
LVM Administration with CLI Commands
27
Using CLI Commands
27
Physical Volume Administration
28
Creating Physical Volumes
29
Displaying Physical Volumes
30
Preventing Allocation on a Physical Volume
31
Resizing a Physical Volume
31
Removing Physical Volumes
31
Volume Group Administration
31
Creating Volume Groups
32
Adding Physical Volumes to a Volume Group
33
Displaying Volume Groups
33
Scanning Disks for Volume Groups to Build the Cache File
34
Removing Physical Volumes from a Volume Group
34
Changing the Parameters of a Volume Group
35
Activating and Deactivating Volume Groups
35
Removing Volume Groups
36
Splitting a Volume Group
36
Combining Volume Groups
36
Backing up Volume Group Metadata
36
Renaming a Volume Group
37
Moving a Volume Group to Another System
37
Recreating a Volume Group Directory
38
Logical Volume Administration
38
Creating Logical Volumes
38
Persistent Device Numbers
42
Resizing Logical Volumes
42
Changing the Parameters of a Logical Volume Group
43
Renaming Logical Volumes
43
Removing Logical Volumes
43
Displaying Logical Volumes
44
Growing Logical Volumes
44
Extending a Striped Volume
45
Shrinking Logical Volumes
47
Creating Snapshot Volumes
47
Controlling LVM Device Scans with Filters
48
Online Data Relocation
49
Activating Logical Volumes on Individual Nodes in a Cluster
50
Customized Reporting for LVM
50
Format Control
51
Object Selection
53
Sorting LVM Reports
59
Specifying Units
60
LVM Configuration Examples
63
Creating an LVM Logical Volume on Three Disks
63
Creating the Physical Volumes
63
Creating the Volume Group
63
Creating the Logical Volume
63
Creating the File System
64
Creating a Striped Logical Volume
64
Creating the Physical Volumes
64
Creating the Volume Group
65
Creating the Logical Volume
65
Creating the File System
65
Splitting a Volume Group
66
Determining Free Space
66
Moving the Data
66
Splitting the Volume Group
67
Creating the New Logical Volume
67
Making a File System and Mounting the New Logical Volume
67
Activating and Mounting the Original Logical Volume
68
Removing a Disk from a Logical Volume
68
Moving Extents to Existing Physical Volumes
68
Moving Extents to a New Disk
69
LVM Troubleshooting
73
Troubleshooting Diagnostics
73
Displaying Information on Failed Devices
73
Recovering from LVM Mirror Failure
74
Recovering Physical Volume Metadata
78
Replacing a Missing Physical Volume
79
Removing Lost Physical Volumes from a Volume Group
80
Insufficient Free Extents for a Logical Volume
80
LVM Administration with the LVM GUI
83
The Device Mapper
85
The LVM Configuration Files
87
Sample Lvm.conf File
87
LVM Object Tags
97
Adding and Removing Object Tags
97
Host Tags
97
Controlling Activation with Tags
98
LVM Volume Group Metadata
99
The Physical Volume Label
99
Metadata Contents
99
Sample Metadata
100
Revision History
103
Revision History Index
103
Index
105
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