In case you choose to use a PostgreSQL-driven script app on one of your sites, you should have a sufficient amount of database storage space for it, in order to guarantee that even when your site evolves, it will run smoothly and without interruptions. Adding extra items to an online shop or extra comments to a discussion forum are just two examples of what can expand your databases. In the event you use up all your space at some time, the performance will decrease or the website may not be available at all due to the fact that if your storage limit is reached, the script won't be able to keep new content inside the database - user-generated or system one. Due to the fact that PostgreSQL is designed for scalable web applications, it's likely that when you use this type of database for your site, you'll need more space for it when your website expands.