In our lab, NFS server has been setup. This server has home directories of all users. Quota is enabled for all users.
root@server:/users/labuser# du -sh
69M .
root@lab-01:~# quota -su labuser
Disk quotas for user labuser (uid 52022):
Filesystem blocks quota limit grace files quota limit grace
10.x.y.z:/users 301M* 196M 200M none 1903 0 0
'du -sh' shows 69MB whereas quota shows 301M. User is getting "disk quota exceeded" error. He is unable to create/save any file/directory.
What could be the problem?