1、创建pv [root@autodeploy nfs]# pvcreate /dev/vdd1 WARNING: xfs signature detected on /dev/vdd1 at offset 0. Wipe it? [y/n]: y Wiping xfs signature on /dev/vdd1. Physical volume “/dev/vdd1” successfully created [root@autodeploy nfs]# pvcreate /dev/vde1 Physical volume “/dev/vde1” successfully created 2、创建vg [root@autodeploy nfs]# vgcreate nfs_vg /dev/vdd1 /dev/vde1 Volume group “nfs_vg” successfully created
3、创建lv（此处可以根据需要创建lv，下面只展示做一个lv的列子） [root@autodeploy ~]# lvcreate -l 100%FREE -n nfs_lv nfs_vg Logical volume “nfs_lv” created. 大小可以指定，比如： lvcreate -L 100G -n nfs_lv nfs_vg
4、格代化lv为xfs [root@autodeploy dev]# mkfs.xfs /dev/nfs_vg/nfs_lv meta-data=/dev/nfs_vg/nfs_lv isize=256 agcount=4, agsize=262143488 blks = sectsz=512 attr=2, projid32bit=1 = crc=0 finobt=0 data = bsize=4096 blocks=1048573952, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal log bsize=4096 blocks=511999, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0
到此处磁盘已做成LVM，只需挂载到相应的文件目录就可以使用。
下面讲一下lvm的扩容 新加入一块100G的盘 pvcreate /dev/vdf1 把pv加到VG中： vgextend nfs_vg /dev/vdf1
将逻辑卷分区VG(nfs_vg)增加100G： lvextend -L +100G /dev/nfs_vg/nfs_lv
调整刷新xfs: xfs_growfs /dev/nfs_vg/nfs_lv resize2fs -p /dev/nfs_vg/nfs_lv
