Si se actualiza PHP 5.3 a Plesk 9.5.4, genera una incompatibilidad con una tabla de la base de datos de Plesk en MySQL.
La solución viene en: http://www.mikcx.com/mysql-5-5-update-breaks-scheduled-backups/
Los errores que genera ‘backupmng’ son:
backupmng: Unable to fetch backup tasks from database: BIGINT UNSIGNED value is out of range in ‘(-(weekday(`psa`.`BackupsScheduled`.`last`)) + `psa`.`BackupsScheduled`.`backup_day`)’
backupmng: Unable to fetch backup tasks from database: BIGINT UNSIGNED value is out of range in ‘(-(weekday(`psa`.`BackupsScheduled`.`last`)) + `psa`.`BackupsScheduled`.`backup_day`)’
Y para solucionarlo hay que hacer esto:
mysql -u admin -p`cat /etc/psa/.psa.shadow`
use psa
ALTER TABLE BackupsScheduled MODIFY COLUMN backup_day INTEGER;