1：将物理磁盘设备条带化为物理卷
[root@gechong ~]# pvcreate /dev/sdb
查看物理卷：
[root@gechong ~]# pvs或者[root@gechong ~]# pvdisplay
2：创建卷组，并添加PV到卷组
[root@gechong ~]# vgcreate vg_gechong /dev/sdb
查看卷组
[root@gechong ~]# vgs或者[root@gechong ~]# vgdisplay
现在创建好了物理卷和卷组还不能使用。
创建完卷组后/dev/vgname多了一个文件夹
[root@gechong ~]# ll /dev/vg*crw-rw----. 1 root root 10, 63 11月 6 19:11 /dev/vga_arbiter/dev/vg_gechong:总用量 0lrwxrwxrwx. 1 root root 7 11月 6 19:11 lv_root -> ../dm-0lrwxrwxrwx. 1 root root 7 11月 6 19:11 lv_swap -> ../dm-1 实际位置是在这里
[root@gechong vg_gechong]# cd /dev/mapper/
3：基于卷组创建逻辑卷
[root@gechong ~]# lvcreate -n lv_root -L 16G vg_gechong
查看逻辑卷
[root@gechong ~]# lvs LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert lv_root vg_gechong -wi-ao--- 16.51g lv_swap vg_gechong -wi-ao--- 3.00g[root@gechong ~]# lvdisplay --- Logical volume --- LV Path /dev/vg_gechong/lv_root LV Name lv_root VG Name vg_gechong LV UUID yatm0L-pnIX-d9Rf-zfTf-0PPq-9zJC-K0Lh5J LV Write Access read/write LV Creation host, time gechong, 2013-10-13 23:57:50 +0800 LV Status available # open 1 LV Size 16.51 GiB Current LE 4226 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:0 --- Logical volume --- LV Path /dev/vg_gechong/lv_swap LV Name lv_swap VG Name vg_gechong LV UUID cxINGt-Nae0-XJYA-6gEV-N6lM-20zG-cWhY0Z LV Write Access read/write LV Creation host, time gechong, 2013-10-13 23:58:02 +0800 LV Status available # open 2 LV Size 3.00 GiB Current LE 768 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:1
4：为逻辑卷创建文件系统
[root@gechong vg_gechong]# mkfs.ext4 /dev/vg_gechong/lv_swap
5：将格式化好的逻辑卷挂载使用
[root@gechong vg_gechong]# mount /dev/vg_gechong/lv_swap /mnt/vg/lv_swap
6：删除逻辑卷
删除逻辑卷之前必须先卸载
[root@gechong vg_gechong]# lvremove /dev/vg_gechong/lv_swap
7：删除卷组
[root@gechong vg_gechong]# vgremove vg_gechong
8：删除物理卷
[root@gechong vg_gechong]# pvremove /dev/sdb