# lvcreate -l 64 -s -n databackname /dev/vgraid/lvone (备份快照) ===查看/dev/vgraid/lvone 目录下会多一个databackname 的软链接文件
# mkdir -p /media/databackname (强制在media目录下创建 databackname目录)
# mount -o ro /dev/vgraid/databackname /media/databackname (挂载快照) ===
# cd /media/databackname/ (显示快照内容)
# umount /media/databackname
# lvremove /dev/vgraid/databackname (删除快照)