I have Dual Xeon +2G ram cpanel with 700 accounts. Normally server load is only 0.5, but when donig backup load always rocket to sky like 18 . Also, another problem is back seems to take forever to finish, it could run from 03:00~17:00
Any ideas how to reduce the load when backuping? I am using cpanel 's backup function (have not tried
incremental backup yet)
Configure your backups to not to backup mysql since it creates a lot of dump schemas which can be restored later. If you backup the whole mysql directory using a custom script, it will cause less load.
Try to run the script using /bin/nice so that it runs with a lower priority and takes less resources than other processes. /bin/nice --help