Linux Learning -15-Learning LVM Logical Volumes

In implementing a file system that can elastically adjust capacity

Fdisk/dev/hda partition

Partprobe Update partition

Pvscan Check for PV presence or not

Pvcreate/dev/hda5 Creating PV

Vgcreate vbirdvg/dev/hda{6,7,8} Create VG

Vgscan

Pvscan

Vgextend VBIRDVG/DEV/HDA9 Added VG

Lvcreate-l 5.56g-n VBIRDLV VBIRDVG

Mkfs-t EXT3/DEV/VBIRDVG/VBIRDLV

Mkdir/mnt/lvm

Mount/dev/vbirdvg/vbirdlv/mnt/lvm

Enlarge LV

Fdisk/dev/hda, Partprobe

Pvcreate/dev/hda10

Vgextend vbirdvg/dev/hda10

Lvresize-l +M/DEV/VBIRDVG/VBIRDLV Reduced Use-

Lvdisplay

RESIZE2FS/DEV/VBIRDVG/VBIRDLV making changes effective in the system

Zoom Out LV

Umount/mnt/lvm

E2fsck-f/DEV/VBIRDVG/VBIRDLV Disk Check

RESIZE2FS/DEV/VBIRDVG/VBIRDLV 6900M reduces file system capacity

Mount/dev/vbirdvg/vbirdlv/mnt/lvm

Df/mnt/lvm

Lvresize-l-M/DEV/VBIRDVG/VBIRDLV Lower LV capacity

Pvdisplay

PVMOVE/DEV/HDA6/DEV/HDA10 Moving PV Data

Pvmove source PV Target PV, you can move the PE in the/dev/hda6 to/DEV/HDA10

Vgreduce Vbirdvg/dev/hda6 move out of VG

Pvscan

Pvremove/dev/hda6 Moving out of PV

System snapshot for LVM P575

Linux Learning -15-Learning LVM Logical Volumes