Linux lvmdiskscan命令|极客笔记

Linux lvmdiskscan命令：扫描可见LVM2所有设备。

Linux lvmdiskscan命令功能描述

使用lvmdiskscan命令可以在系统中为LVM物理卷扫描所有的SCSI、IDE磁盘、多种设备和其他块设备。

Linux lvmdiskscan命令语法

lvmdiskscan [选项]

命令中各选项的含义如表所示。

lvmdiskscan命令选项含义

Linux lvmdiskscan命令示例

扫描可见LVM2所有设备，只报告物理卷

[root@rhel ～]# lvmdiskscan -l
  WARNING: only considering LVM devices
  /dev/sda5   [    100.00 GiB]LVM physical volume
  /dev/sda6   [    100.01 GiB]LVM physical volume
  /dev/sda7   [    100.01 GiB]LVM physical volume
  0 LVM physical volume whole disks
  3 LVM physical volumes

扫描可见LVM2所有设备

[root@rhel ～]# lvmdiskscan
  /dev/ram0   [     16.00 MiB]
  /dev/vg1/lv1  [     250.00 GiB]
  /dev/ram1   [     16.00 MiB]
  /dev/sda1    [    100.00 MiB]
  /dev/ram2   [     16.00 MiB]
  /dev/sda2    [    150.00 GiB]
  /dev/ram3   [     16.00 MiB]
  /dev/sda3    [      2.00 GiB]
  /dev/ram4   [     16.00 MiB]
  /dev/ram5   [     16.00 MiB]
  /dev/sda5    [    100.00 GiB]LVM physical volume
  /dev/ram6   [     16.00 MiB]
  /dev/sda6    [    100.01 GiB]LVM physical volume
  /dev/ram7   [     16.00 MiB]
  /dev/sda7    [    100.01 GiB]LVM physical volume
  /dev/ram8   [     16.00 MiB]
  /dev/ram9   [     16.00 MiB]
  /dev/ram10   [     16.00 MiB]
  /dev/ram11   [     16.00 MiB]
  /dev/ram12   [     16.00 MiB]
  /dev/ram13   [     16.00 MiB]
  /dev/ram14   [     16.00 MiB]
  /dev/ram15   [     16.00 MiB]
  0 disks
  20 partitions
  0 LVM physical volume whole disks
  3 LVM physical volumes