#yyds干货盘点# lvm磁盘扩容

root@dc-backup-master ~]# fdisk -l


Disk /dev/sdb: 107.4 GB, 107374182400 bytes

255 heads, 63 sectors/track, 13054 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

fdisk  /dev/sdb

pvcreate /dev/sdb

vgdisplay

vgextend VolGroup /dev/sdb

lvdisplay

vgdisplay

cd /dev/mapper/
ls

df -h

lvdisplay lv_swap

lvdisplay  /dev/mapper/VolGroup-lv_home

lvdisplay  /dev/mapper/VolGroup-lv_root

lvextend  +100%free /dev/mapper/VolGroup-lv_root

lvextend  -l +100%free /dev/mapper/VolGroup-lv_root

resize /dev/mapper/VolGroup-lv_root

resize2fs /dev/mapper/VolGroup-lv_root

fdisk -l