Using SquareScale, everything is possible, with some warnings:
- you can scale up the database server anytime, with no data loss. Due to technical limitations we cannot overcome, it's currently impossible to scale up twice in less than 6 hours.
- if you destroy your database server, you'll lose your data forever.
- if you change the RDBMS type (from PostgreSQL to MariaDB for example), content will obviously not be migrated from one system to the other.