From the warnquota man page: warnquota checks the disk quota for each filesystem and mails a warning message to those users who have reached their softlimit. This however does not work for nfs based mounts using quotas. This was reported by a customer. The support for NFS is disabled in the warnquota code. To confirm this, I posted a note to the forum on the quota sourceforge.net page and got the confirmation that it is not supported over NFS and no plans exist currently to add support. http://sourceforge.net/forum/forum.php?thread_id=1870399&forum_id=57476 A change instead was made to the warnquota man page to make it clear that warnquota works only for local filesystems. http://linuxquota.cvs.sourceforge.net/linuxquota/quota-tools/warnquota.8?r1=1.9&r2=1.10 Can engineering please change the man page to make it clear that the warnquota utility only works for local filesystems.
This request was evaluated by Red Hat Product Management for inclusion, but this component is not scheduled to be updated in the current Red Hat Enterprise Linux release. If you would like this request to be reviewed for the next minor release, ask your support representative to set the next rhel-x.y flag to "?".
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: The warnquota(8) man page implied that "warnquota" checks the disk quota for all file systems, whereas it actually only checks local file systems. The man page has been clarified in this regard, and no longer contains misleading information.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2010-0767.html