逻辑卷的删除

1、取消逻辑卷与目录的挂载关联，删除配置文件中永久生效的设备参数。

[root@linuxprobe ~]# umount /linuxprobe 

[root@linuxprobe ~]# vim /etc/fstab 

# 

# /etc/fstab 

# Created by anaconda on Fri Feb 19 22:08:59 2017 

# 

# Accessible filesystems, by reference, are maintained under '/dev/disk' 

# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info 

# 

/dev/mapper/rhel-root / xfs defaults 1 1 

UUID=50591e35-d47a-4aeb-a0ca-1b4e8336d9b1 /boot xfs defaults 1 2 

/dev/mapper/rhel-swap swap swap defaults 0 0 

/dev/cdrom /media/cdrom iso9660 defaults 0 0

2、把LV逻辑卷设备删除，需要手工输入y来确认操作：

[root@linuxprobe ~]# lvremove /dev/storage/vo 

Do you really want to remove active logical volume vo? [y/n]: y 

Logical volume "vo" successfully removed

3、把VG卷组删除，此处只需写卷组名称即可，而无需设备完整绝对路径：

[root@linuxprobe ~]# vgremove storage 

Volume group "storage" successfully removed

4、把PV物理卷设备移除：

[root@linuxprobe ~]# pvremove /dev/sdb /dev/sdc 

Labels on physical volume "/dev/sdb" successfully wiped 

Labels on physical volume "/dev/sdc" successfully wiped