Linux command
lvs 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
List
sudo lvs
List all
sudo lvs -a
Verbose
sudo lvs -v
Example
sudo lvs -o lv_name,vg_name,lv_size
Append
sudo lvs -o +lv_path
Show available fields
sudo lvs -o help
No headings
sudo lvs --noheadings --separator '|'
Filter
sudo lvs -S 'lv_size>1g'
JSON output
sudo lvs --reportformat json
说明
lvs displays information about logical volumes in a configurable table format. It provides a quick overview of LV names, sizes, attributes, and related volume groups.
参数
- -a, --all
- Show all logical volumes including internal ones.
- -v, --verbose
- Increase verbosity and show additional details. Can be repeated up to 4 times.
- -o, --options _fields_
- Specify which fields to display. Prefix with `+` to append, `-` to remove, `#` to compact empty fields. Use `-o help` to list available fields.
- -S, --select _criteria_
- Filter output rows matching selection criteria.
- -O, --sort _fields_
- Sort output by specified fields. Prefix with `-` for reverse order.
- --noheadings
- Suppress the heading line in output.
- --nosuffix
- Suppress size unit suffixes in output.
- --separator _char_
- Use specified character as field separator.
- --aligned
- Use with --separator to align output columns.
- --nameprefixes
- Add "LVM2_" prefix to field names, producing field=value pairs.
- --segments
- Show segment information in default columns.
- --rows
- Display columns as rows.
- --units _units_
- Display sizes in specified units (b, s, k, m, g, t, p, e, h, H).
- --reportformat _format_
- Output format: `basic` or `json`.
FAQ
What is the lvs command used for?
lvs displays information about logical volumes in a configurable table format. It provides a quick overview of LV names, sizes, attributes, and related volume groups.
How do I run a basic lvs example?
Run `sudo lvs` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -a, --all do in lvs?
Show all logical volumes including internal ones.