Filesystem
To enable quota for a file system
1. Modify the filesystem enntry in /etc/fstab with userquota and groupquota option
/dev/mapper/vg00-rootlv / ext3 defaults,errors=remount-ro,usrquota,grpquota 0 1
2. Run the following commands to enable the quota
touch /quota.user /quota.group chmod 600 /quota.* mount -o remount / quotacheck -avugm quotaon -avug