It's an SQLite 3 database, but Ghost allows you to export it to JSON for backing up. I've not had a big load in the few days I've changed from Octopress to Gho

It's an SQLite 3 database, but Ghost allows you to export it to JSON for backing up. I've not had a big load in the few days I've changed from Octopress to Ghost, so I don't know how well it handles it.