Installation guide
Table Of Contents
- LVM Administrator's Guide
- Table of Contents
- Introduction
- Chapter 1. The LVM Logical Volume Manager
- Chapter 2. LVM Components
- Chapter 3. LVM Administration Overview
- Chapter 4. LVM Administration with CLI Commands
- 1. Using CLI Commands
- 2. Physical Volume Administration
- 3. Volume Group Administration
- 3.1. Creating Volume Groups
- 3.2. Adding Physical Volumes to a Volume Group
- 3.3. Displaying Volume Groups
- 3.4. Scanning Disks for Volume Groups to Build the Cache File
- 3.5. Removing Physical Volumes from a Volume Group
- 3.6. Changing the Parameters of a Volume Group
- 3.7. Activating and Deactivating Volume Groups
- 3.8. Removing Volume Groups
- 3.9. Splitting a Volume Group
- 3.10. Combining Volume Groups
- 3.11. Backing Up Volume Group Metadata
- 3.12. Renaming a Volume Group
- 3.13. Moving a Volume Group to Another System
- 3.14. Recreating a Volume Group Directory
- 4. Logical Volume Administration
- 4.1. Creating Logical Volumes
- 4.2. Persistent Device Numbers
- 4.3. Resizing Logical Volumes
- 4.4. Changing the Parameters of a Logical Volume Group
- 4.5. Renaming Logical Volumes
- 4.6. Removing Logical Volumes
- 4.7. Displaying Logical Volumes
- 4.8. Growing Logical Volumes
- 4.9. Extending a Striped Volume
- 4.10. Shrinking Logical Volumes
- 5. Creating Snapshot Volumes
- 6. Controlling LVM Device Scans with Filters
- 7. Online Data Relocation
- 8. Activating Logical Volumes on Individual Nodes in a Cluster
- 9. Customized Reporting for LVM
- Chapter 5. LVM Configuration Examples
- Chapter 6. LVM Troubleshooting
- Chapter 7. LVM Administration with the LVM GUI
- Appendix A. The Device Mapper
- Appendix B. The LVM Configuration Files
- Appendix C. LVM Object Tags
- Appendix D. LVM Volume Group Metadata
- Index

extent_size = 8192 # 4 Megabytes
max_lv = 0
max_pv = 0
physical_volumes {
pv0 {
id = "ZBW5qW-dXF2-0bGw-ZCad-2RlV-phwu-1c1RFt"
device = "/dev/sda" # Hint only
status = ["ALLOCATABLE"]
dev_size = 35964301 # 17.1491 Gigabytes
pe_start = 384
pe_count = 4390 # 17.1484 Gigabytes
}
pv1 {
id = "ZHEZJW-MR64-D3QM-Rv7V-Hxsa-zU24-wztY19"
device = "/dev/sdb" # Hint only
status = ["ALLOCATABLE"]
dev_size = 35964301 # 17.1491 Gigabytes
pe_start = 384
pe_count = 4390 # 17.1484 Gigabytes
}
pv2 {
id = "wCoG4p-55Ui-9tbp-VTEA-jO6s-RAVx-UREW0G"
device = "/dev/sdc" # Hint only
status = ["ALLOCATABLE"]
dev_size = 35964301 # 17.1491 Gigabytes
pe_start = 384
pe_count = 4390 # 17.1484 Gigabytes
}
pv3 {
id = "hGlUwi-zsBg-39FF-do88-pHxY-8XA2-9WKIiA"
device = "/dev/sdd" # Hint only
status = ["ALLOCATABLE"]
dev_size = 35964301 # 17.1491 Gigabytes
pe_start = 384
pe_count = 4390 # 17.1484 Gigabytes
}
}
logical_volumes {
mylv {
id = "GhUYSF-qVM3-rzQo-a6D2-o0aV-LQet-Ur9OF9"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 2
segment1 {
start_extent = 0
extent_count = 1280 # 5 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
segment2 {
start_extent = 1280
extent_count = 1280 # 5 Gigabytes
3. Sample Metadata
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