Glacier

AWS Glacier is another available object storage option. Glacier storage is like an extension of S3, but it is intended for infrequently accessed datasets. You can think of it as primarily suitable for data archiving and where a retrieval time of several hours is acceptable. Glacier storage offers the same high durability as S3 but with a very low cost. Objects in Glacier are managed through S3. Objects are not associated or managed with Glacier directly upon upload. Rather than this, the existing Amazon S3 objects are transitioned to Glacier when the data is ready for archiving. AWS also added additional retrieval options from Glacier that you can choose from to get the data quickly out of Glacier.