Backup drive - disk space anomaly

Operating System & Version
CentOS v7.9.2009
cPanel & WHM Version
106.0.4

kamm

Well-Known Member
Jan 17, 2004
61
1
158
Spain
cPanel Access Level
Root Administrator
WHM disk usage for the /backup drive (917 GB) is showing 671 GB used, as does du -sh, but I'm receiving email notifications showing 718.53 GB - 83.45% used. Anyone know what's causing this anomaly?
 

quietFinn

Well-Known Member
Feb 4, 2006
1,701
352
438
Finland
cPanel Access Level
Root Administrator
When cPanel backup finishes doing backup it deletes the oldest backup, according to your backup retention settings. So 718.53 GB is before the old backup is deleted, and 671 GB is after.
 
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kamm

Well-Known Member
Jan 17, 2004
61
1
158
Spain
cPanel Access Level
Root Administrator
Thanks both for the responses - makes sense, as I just noticed the notifications are only sent once daily a few minutes before the "backup process completed" notification.