1、检查文件系统的完整性：[root@linuxprobe ~]# e2fsck -f /dev/storage/voe2fsck 1.42.9 (28-Dec-2013)Pass 1: Checking inodes, blocks, and sizesPass 2: Checking directory structurePass 3: Checking directory connectivityPass 4: Checking reference countsPass 5: Checking group summary information/dev/storage/vo: 11/74000 files (0.0% non-contiguous), 15507/299008 blocks
2、将LV逻辑卷的容量减小到120M：[root@linuxprobe ~]# resize2fs /dev/storage/vo 120Mresize2fs 1.42.9 (28-Dec-2013)Resizing the filesystem on /dev/storage/vo to 122880 (1k) blocks.The filesystem on /dev/storage/vo is now 122880 blocks long.[root@linuxprobe ~]# lvreduce -L 120M /dev/storage/voWARNING: Reducing active logical volume to 120.00 MiBTHIS MAY DESTROY YOUR DATA (filesystem etc.)Do you really want to reduce vo? [y/n]: yReducing logical volume vo to 120.00 MiBLogical volume vo successfully resized
3、将文件系统重新挂载并查看系统状态：[root@linuxprobe ~]# mount -a[root@linuxprobe ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/rhel-root 18G 3.0G 15G 17% /devtmpfs 985M 0 985M 0% /devtmpfs 994M 80K 994M 1% /dev/shmtmpfs 994M 8.8M 986M 1% /runtmpfs 994M 0 994M 0% /sys/fs/cgroup/dev/sr0 3.5G 3.5G 0 100% /media/cdrom/dev/sda1 497M 119M 379M 24% /boot/dev/mapper/storage-vo 113M 1.6M 103M 2% /linuxprobe