To disable apache logs (access and error log) to avoid excessive writes on local server just open your /etc/apache2/apache2.conf file and change the following two configurations:

Change the ErrorLog to:

ErrorLog /dev/null

Now, open /etc/apache2/conf.d/other-vhosts-access-log and comment the following line

#CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined

In addition, you might have to change these files:

/etc/apache2/sites-available/default-ssl

/etc/apache2/sites-available/default

and change the ErrorLog and comment out the CustomLog:

ErrorLog /dev/null

#CustomLog ${APACHE_LOG_DIR}/access.log combined

If you have more VirtualHosts, you need to make the same configuration for them.

Source; lleess