# Backing up the administration database

Backing up the project administration database (talend\_administrator) is mandatory before starting the migration process.

Before backing up the project administration database, pause all currently active tasks in Talend Administration Center.

If you migrate from database X to database X (ex: from MySQL to MySQL), the database backup is performed directly in the web application in the first step of the migration process.

If you migrate from database X to database Y (ex: from H2 to MySQL), you need to back up the administration database manually.

### In this section

* [Pausing tasks in Talend Administration Center](https://help.qlik.com/talend/en-US/migration-upgrade-guide/7.3/pausing-tasks-in-talend-administration-center)
* [Backing up a MySQL database](https://help.qlik.com/talend/en-US/migration-upgrade-guide/7.3/backing-up-mysql-database)
* [Backing up an H2 database](https://help.qlik.com/talend/en-US/migration-upgrade-guide/7.3/backing-up-h2-database)