Problem: You get the ftp error “553 Disk full – please upload later”, even when the quota of the user has not been exceeded and the disk partition in which all the user accounts reside (say /dev/sda5) is not full.
Cause: The value of the variable ‘MaxDiskUsage’ in the pure-ftpd configuration file (/etc/pure-ftpd.conf ) will be equal to or less than the percent use of the partition.
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root@ [~]# grep MaxDiskUsage /etc/pure-ftpd.conf
MaxDiskUsage 90
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#df
Filesystem Size Used Avail Use% Mounted on
/dev/sda5 144G 59G 78G 90% /
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Solution: Change the MaxDiskUsage value to 99 (Some high value) and restart pure-ftpd. 🙂