Backblaze is s service that backs up pictures, documents and other media. Services such as these store amounts of data that can at times seem abstract.
In a blog post, the Backblaze team showed what 10 petabytes actually looks like. One one level, 10 petabytes is double the entire Internet archive.
Here are some other views on how this could be illustrated.
You can think of it in terms of pods:
Or by the number of drives it equals:
Here's the most compelling. Stacked on top of each other the drives would rise higher than the tallest buildings in the world:
Kind of shows why all those data centers are getting built. Doesn't it?