我是否应该使用EBS或S3来存储数据库?

I want to host a website on an Amazon EC2 instance, but for reliability purposes, I want to have the underlying database on some more permanent storage medium. There won't be any file uploading or anything like that, but I want to make sure that the database queries and updates are going quickly. Should I use EBS or S3 for this?I want to host a website on an Amazon EC2 insta