[root@sfzwapp2 /]# umount -f /app umount2: Device or resource busy umount: /app: device is busy.         (In some cases useful info about processes that use          the device is found by lsof(8) or fuser(1)) umount2: Device or resource busy

 [root@sfzwapp2 /]# fuser -c /app

/app:                18822ce [root@sfzwapp2 /]# ps -ef|grep 18822 root     18822     1  0 00:00 ?        00:00:07 ./nmon_x86_64_rhel6 -f -T -s 120 -c 720 root     21559 21427  0 14:55 pts/2    00:00:00 grep 18822 [root@sfzwapp2 /]# kill -9 18822 [root@sfzwapp2 /]# umount -f /app
[root@sfzwapp2 /]# lvremove /dev/vg_sfzwapp2/LogVapp  Do you really want to remove active logical volume LogVapp? [y/n]: y   Logical volume "LogVapp" successfully removed  [root@sfzwapp2 /]# lvextend -L +100G /dev/vg_sfzwapp2/LogVhome    Size of logical volume vg_sfzwapp2/LogVhome changed from 10.00 GiB (2560 extents) to 110.00 GiB (28160 extents).   Logical volume LogVhome successfully resized [root@sfzwapp2 /]# resize2fs    /dev/vg_sfzwapp2/LogVhome
resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/vg_sfzwapp2/LogVhome is mounted on /home; on-line resizing required old desc_blocks = 1, new_desc_blocks = 7 Performing an on-line resize of /dev/vg_sfzwapp2/LogVhome to 28835840 (4k) blocks. The filesystem on /dev/vg_sfzwapp2/LogVhome is now 28835840 blocks long.   [root@sfzwapp2 /]# df -h Filesystem            Size  Used Avail Use% Mounted on /dev/mapper/vg_sfzwapp2-LogVroot                        35G  2.2G   31G   7% / tmpfs                  16G  224K   16G   1% /dev/shm /dev/sda1             477M   42M  410M  10% /boot /dev/mapper/vg_sfzwapp2-LogVhome                       109G   38M  103G   1% /home /dev/mapper/vg_sfzwapp2-LogVtmp                       9.8G   23M  9.2G   1% /tmp /dev/mapper/vg_sfzwapp2-LogVusr                       9.8G  2.9G  6.5G  31% /usr /dev/mapper/vg_sfzwapp2-LogVvar                       9.8G  145M  9.1G   2% /var