is confirued already to 125M.

in the apache error log I found

/usr/local/www/fastcgi/timeoutftp.server” stderr: PHP message: WordPress database error MySQL server has gone away for query SELECT autoload FROM wp_options WHERE option_name = ‘_site_transient_update_core’ made by do_core_upgrade, Core_Upgrader->upgrade, delete_site_transient, delete_site_option, delete_option, referer: https://myurl.com/wp-admin/update-core.php
/usr/local/www/fastcgi/timeoutftp.server” stderr: PHP message: WordPress database error MySQL server has gone away for query INSERT INTO wp_options (option_name, option_value, autoload) VALUES (‘_site_transient_update_core’, ‘O:8:\\”stdClass\\”:3:{s:7:\\”updates\\”;a:0:{}s:15:\\”version_checked\\”;s:5:\\”3.8.1\\”;s:12:\\”last_checked\\”;i:1392981078;}’, ‘yes’) ON DUPLICATE KEY UPDATE option_name = VALUES(option_name), option_value = VALUES(option_value), autoload = VALUES(autoload) made by do_core_upgrade, Core_Upgrader->upgrade, wp_version_check, set_site_transient, add_site_option, add_option, referer: https://myurl.com/wp-admin/update-core.php
/usr/local/www/fastcgi/timeoutftp.server” stderr: PHP message: WordPress database error MySQL server has gone away for query SELECT COUNT(NULLIF(meta_value LIKE ‘%”administrator”%’, false)), COUNT(NULLIF(meta_value LIKE ‘%”editor”%’, false)), COUNT(NULLIF(meta_value LIKE ‘%”author”%’, false)), COUNT(NULLIF(meta_value LIKE ‘%”contributor”%’, false)), COUNT(NULLIF(meta_value LIKE ‘%”subscriber”%’, false)), COUNT(*) FROM wp_usermeta WHERE meta_key = ‘wp_capabilities’ made by do_core_upgrade, Core_Upgrader->upgrade, wp_version_check, count_users, referer: https://myurl.com/wp-admin/update-core.php

but the myserver was always up. WP works without problems.