ModSecurity persistent IP database (/var/cpanel/secdatadir/ip.pag) size is 10.72GBThis requires further investigation otherwise it will start to affect server performance.
Interestingly, when I was checking the file /var/cpanel/secdatadir/ip.pag using 'du', it was showing only 41MB usage. It is because this file is a sparse file, and it can store a lot of 0 bit into it. For some reason, lfd determines the actual size of this file and sends warning when the actual size of the file hits 10GB, not the usage. To fix this, simply truncate the file or create a new file.
mv /var/cpanel/secdatadir/ip.pagtouch; /var/cpanel/secdatadir/ip.pag; chmod 755 /var/cpanel/secdatadir/ip.pag; chown nobody:nobody /var/cpanel/secdatadir/ip.pag; service httpd restart