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ENTERPRISE LINUX 4 - LVM ADMINISTRATOR
Red Hat ENTERPRISE LINUX 4 - LVM ADMINISTRATOR Manuals
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Red Hat ENTERPRISE LINUX 4 - LVM ADMINISTRATOR manual available for free PDF download: Manual
Red Hat ENTERPRISE LINUX 4 - LVM ADMINISTRATOR Manual (112 pages)
Cluster Logical Volume Manager
Brand:
Red Hat
| Category:
Software
| Size: 0 MB
Table of Contents
Table of Contents
3
Introduction
7
Audience
7
Software Versions
7
Related Documentation
7
Document Conventions
8
Typographic Conventions
8
Pull-Quote Conventions
10
Notes and Warnings
10
Feedback
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
21
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
29
Using CLI Commands
29
Physical Volume Administration
30
Creating Physical Volumes
31
Displaying Physical Volumes
32
Preventing Allocation on a Physical Volume
33
Resizing a Physical Volume
33
Removing Physical Volumes
33
Volume Group Administration
33
Creating Volume Groups
34
Adding Physical Volumes to a Volume Group
35
Displaying Volume Groups
35
Scanning Disks for Volume Groups to Build the Cache File
36
Removing Physical Volumes from a Volume Group
36
Changing the Parameters of a Volume Group
37
Activating and Deactivating Volume Groups
37
Removing Volume Groups
38
Splitting a Volume Group
38
Combining Volume Groups
38
Backing up Volume Group Metadata
38
Renaming a Volume Group
39
Moving a Volume Group to Another System
39
Recreating a Volume Group Directory
40
Logical Volume Administration
40
Creating Logical Volumes
40
Persistent Device Numbers
44
Resizing Logical Volumes
45
Changing the Parameters of a Logical Volume Group
45
Renaming Logical Volumes
45
Removing Logical Volumes
45
Displaying Logical Volumes
46
Growing Logical Volumes
46
Extending a Striped Volume
47
Shrinking Logical Volumes
49
Creating Snapshot Volumes
49
Controlling LVM Device Scans with Filters
50
Online Data Relocation
51
Activating Logical Volumes on Individual Nodes in a Cluster
52
Customized Reporting for LVM
52
Format Control
53
Object Selection
55
Sorting LVM Reports
61
Specifying Units
62
LVM Configuration Examples
65
Creating an LVM Logical Volume on Three Disks
65
Creating the Physical Volumes
65
Creating the Volume Group
65
Creating the Logical Volume
65
Creating the File System
66
Creating a Striped Logical Volume
66
Creating the Physical Volumes
66
Creating the Volume Group
67
Creating the Logical Volume
67
Creating the File System
67
Splitting a Volume Group
68
Determining Free Space
68
Moving the Data
68
Splitting the Volume Group
69
Creating the New Logical Volume
69
Making a File System and Mounting the New Logical Volume
69
Activating and Mounting the Original Logical Volume
70
Removing a Disk from a Logical Volume
70
Moving Extents to Existing Physical Volumes
70
Moving Extents to a New Disk
71
Creating a Mirrored LVM Logical Volume in a Cluster
73
LVM Troubleshooting
77
Troubleshooting Diagnostics
77
Displaying Information on Failed Devices
77
Recovering from LVM Mirror Failure
78
Recovering Physical Volume Metadata
82
Replacing a Missing Physical Volume
83
Removing Lost Physical Volumes from a Volume Group
84
Insufficient Free Extents for a Logical Volume
84
LVM Administration with the LVM GUI
87
The Device Mapper
89
The LVM Configuration Files
91
Sample Lvm.conf File
91
LVM Object Tags
101
Adding and Removing Object Tags
101
Host Tags
101
Controlling Activation with Tags
102
LVM Volume Group Metadata
103
The Physical Volume Label
103
Metadata Contents
103
Sample Metadata
104
Revision History
107
Index
109
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