User and Group quota is not working on RHEL6.2 ext4/ext3

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http://www.unix.com – Hello! I am in a weird problem of not able to set quota on an ext4 file system. I have setup a logical volume on which this ext4 filesystem resides. It's going to be used by an application for dumping data. But we want to setup quota so that it does not consume all the free space of the lv. The application will generate an error log if the quota limit is crossed. But the problem is that I am not able to set quota on the filesystem. Here's the mount options used: Code: # mount | grep u02 /dev/mapper/vg_app-lv_app on /u02 type ext4 (rw,acl,usrquota,grpquota) Here's what I get when trying (HowTos)