Understanding the different storage types
The storage used by your application records contributes to the most important part of the overall data storage allocation on the platform. There is also storage used by the files uploaded by users and that used by so-called Big Objects. Big Objects are a type of object that allows you to store billions of records of data on the platform (we will discuss them later in this chapter). By default, in a scratch org, you can store up to 1 million records in your Big Objects. Later in this chapter, we will discuss so-called External Objects, which as the name suggests, are used to integrate with data stored outside of the Salesforce environment and will not be represented here.
From the Storage Usage page under the Setup menu, you can see a summary of the storage used, including the storage that resides in the Salesforce Standard Objects.
Later in this chapter, we will be creating a Custom Metadata Type object to store configuration...