reclaim reserved available free space on linux

reclaim reserved available free space

[root@dbs-xxx-4-131 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
65G 2.7G 59G 5% /
/dev/mapper/VolGroup01-LogVol00
679G 35G 609G 6% /u01
/dev/sda1 996M 46M 899M 5% /boot
tmpfs 7.8G 0 7.8G 0% /dev/shm
/dev/sdc1 886G 200M 841G 1% /Backup

[root@dbs-ruh-4-131 ~]# tune2fs -m 0 /dev/sdc1
tune2fs 1.39 (29-May-2006)
Setting reserved blocks percentage to 0% (0 blocks)

[root@dbs-xxx-4-131 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
65G 2.7G 59G 5% /
/dev/mapper/VolGroup01-LogVol00
679G 35G 609G 6% /u01
/dev/sda1 996M 46M 899M 5% /boot
tmpfs 7.8G 0 7.8G 0% /dev/shm
/dev/sdc1 886G 200M 886G 1% /Backup