Disk usage on non-root filesystems that contain a backup destination

Question

Why are my accounts not showing the correct disk usage in cPanel and WHM?

Answer

The system will automatically disable quotas on non-root filesystems that contain a backup destination. This behavior was designed to prevent performance degradation caused by backups on a partition with quotas enabled. If accounts exist on the same partition, this will prevent their quotas from updating and will result in disk usage being inaccurate.