cPanel shows incorrect disk usage
* Disk usage zero for all the domains in ‘list accounts’
* Mismatch between the disk usage in backend and Cpanel
Check whether /home partition has been mounted with ‘usrquota’ option (defaults,usrquota in /etc/fstab)
# cat /etc/fstab| grep home
LABEL=/home /home ext3 defaults,usrquota 1 2
# quotacheck -c /home
Also Check the option WHM >> Server Configuration >> Tweak Settings >> System — Disable Disk Quota display caching
