Amazon Glacier is an extremely low-cost storage service that provides secure and
durable storage for data archiving and backup. With Amazon Glacier, customers
can store their data cost effectively for months, years, or even decades. Amazon
Glacier enables customers to offload the administrative burdens of operating and
scaling storage to AWS, so they don't have to worry about capacity planning,
hardware provisioning, data replication, hardware failure detection and
recovery, or time-consuming hardware migrations.
Amazon Glacier is a great storage choice when low storage cost is paramount, your data is rarely retrieved, and retrieval latency of several hours is acceptable.