Storage services. In this lesson, you will learn about AWS storage services. What is data storage? Data storage is the process of recording information onto storage mechanisms, to preserve them for future use. For example, this Australian, aboriginal drawing records, and extinct species of bird. According to the journal Science, the quantity of digital storage doubles every three years. Data storage at cloud scale. On the AWS cloud, we generally think of storage in terms of exabytes. So to get you thinking like us at cloud scale, understand this. Zero or one are bits. One character, like the letter A or Z, is a byte. One bite equals eight bits. One gigabyte equals 1000 megabytes. 4.7 gigabytes is the size of a standard DVD. One terabyte equals 1000 gigabytes. Ten terabytes is the size of the printed collection of the US Library of Congress, which has 171 million items in 470 different languages. One petabyte equals 1000 terabytes. 1.5 petabytes is the size of all 10 billion photos uploaded to Facebook. According to UC Berkeley, 50 petabytes is the entire written works of mankind, from the beginning of recorded language in all languages. One exabyte equals 1000 petabytes. one exabyte is the entire Netflix catalog, recorded over and over again 3000 times. Again at AWS, this is the amount of data we normally think about handling in the cloud, one zettabyte equals 1000 exabytes. According to IDC and Seagate, we will collectively create one 175 zettabytes of data by 2025. And people like you and me will be managing, governing and delivering insight from all of this data. Now we're going to explore the types of storage: edge, cloud, hybrid and secondary. Edge environment tend to be rugged meaning that, the equipment must survive dust storms, immersion in water, fire and hostile action that would normally destroy electronics. Also, some cloud scale data transfers would take years or decades if done online. Even with the fast connections we have today. That's why AWS serves customers' edge needs, with the AWS Snow family of products. We'll start with the largest storage capacity, and move down to the smallest Snow offerings. Snowmobile is a truck, it stores 100 petabytes, roughly twice the entire written works of mankind. If you see the words on the product page, they advertise themselves as exabyte scale. Remember that an exabyte is 1000 petabytes, so how is 100 petabytes exabyte scale? Isn't 100 petabytes one tenth of an exabyte? Yes, but with any Snow product, you can use multiple of them at once. So using ten Snowmobiles would get you one exabyte. You use Snowmobiles to complete large data migrations to AWS. Next, a Snowball Edge is a desktop computer-sized Snow device. Versions available today store 80 terabytes of data, roughly eight times the Library of Congress. One use case is shipping, submarines, cruise ships, and other ocean going vessels with limited internet connectivity can use Snowball Edges to assemble and store data. In this video a Snowball Edge survives a depth charge. Finally, Snowcone fits in your mailbox, versions available today store eight terabytes (roughly one Library of Congress). If you've ever wondered how movie theaters get released copies from their movies, one answer is that, the theater receives a Snowcone. With the Snow devices, not only can you perform edge storage, but you can also perform edge compute on that storage. Because each snow device, can function as its own computer. You can also connect Snow devices to AWS compute resources, using the Internet, taking advantage of all of AWS services.