The LVM of Linux

PV

PVCREATE/DEV/SDAN

PVs # #简单查看 # #

PVDISPLAY/DEV/SDAN # #详细查看 # #

Vg

Vgcreate name/DEV/SDAn

Vgdisplay name

Vgremove Name

    first Pvmove/dev/sdan       then vgreduce name/dev/sdan        last pvremove/dev/sdan

vgextend name/DEV/SDAn

Lv

Lvcreate-l size-n name VG name format Mount

LVDISPLAY/DEV/VG name/lv Name

LVREMOVE/DEV/VG name/lv name (/dev/mapper/vg name-lv name )

Lvextend-l size/DEV/VG name/LV Name # # Extended physical boundary

Resize2fs-p/DEV/VG name/lv name # # Extended Logical Boundary

1. Can not be reduced online, to first uninstall

2. Ensure that the reduced space can store the original data df-h

3. The file should be forcibly checked before shrinking to ensure that the file system is in a consistent state e2fsck-f/DEV/VG name/lv name

RESIZE2FS/DEV/VG name/lv name Size # # reduce logical boundaries

Lvreduce-l size/DEV/VG name/LV name # # reduce physical boundaries

lvcreate-l Size-n name-s-p r/dev/vg name/lv name # # Create a snapshot volume

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The LVM of Linux