Amazon S3 Glacier and S3 Glacier Deep Archive offer secure, reliable, and remarkably affordable cloud storage solutions within Amazon S3 specifically tailored for archiving data and long-term backups. These storage classes are engineered to achieve an impressive durability rate of 99.999999999% and come equipped with extensive security and compliance features that assist in fulfilling even the most demanding regulatory standards. Users can take advantage of pricing as low as $1 per terabyte each month, which presents a considerable cost reduction compared to traditional on-premises storage solutions. To accommodate diverse retrieval requirements without compromising affordability, Amazon S3 Glacier includes three distinct access options that range from mere minutes to several hours, while S3 Glacier Deep Archive offers two access choices with timelines spanning from 12 to 48 hours. Additionally, the S3 Glacier storage classes boast advanced compatibility with AWS CloudTrail, enabling the logging, monitoring, and retention of storage API call activities for effective auditing. Furthermore, they also feature three different encryption methods to enhance data security. Overall, these storage classes provide an efficient and scalable solution for businesses looking to streamline their data management processes.