Amazon Glacier is the cheapest service that provides more secure, durable and flexible storage for long-term backup and data archival. Its retrieval time is three to five hours and is used for infrequently accessed data. In Amazon Glacier, the user can store data as little as 0.004% per Gigabit per month and can save any form of data. It is the most cost-effective resource to secure your data for months, year or decades. For long-term backup mostly data stored in the form of ZIP files or TAR (Tape archive). Amazon Glacier is designed for 99.999999999% durability of objects over a given year. Amazon Glacier support SSL encryption of data in transit or at rest. Amazon Glacier provides three options for access to archives, from a few minutes to several hours.
Amazon Glacier provides a console, which you can use to create and delete vaults. However, all other interactions with Amazon Glacier require that you use the AWS Command Line Interface (AWS CLI) or write code. For example, to upload data, such as photos, videos, and other documents, you must either use the AWS CLI or write code to make requests, by using either the REST API directly or by using the AWS SDKs. For more information about using Amazon Glacier with the AWS CLI, go to AWS CLI Reference for Amazon Glacier. To install the AWS CLI, go to AWS Command Line Interface.
In that, data stores as archives and it can contain up to 40 TB. At the time of archival, each archive is assigned by a unique archive ID. Once the archive is created, it cannot be, modified and are automatically encrypted.
For Archives, data containers are vaults. Each account can have up to 1,000 vaults and can control access to the vaults by using vault access policies.
Vault lock feature enforces compliance with a vault lock policy such as WORM (Write Once Read Many). Once the policy, locked you cannot change the policy.
Amazon Glacier is designed in such a way that retrievals are unusual, and for long periods of time data will be stored. Data can be retrieved up to 5 per cent of your average monthly storage free every month. You have to pay additional charged per GB when you exceed the limit. To avoid this, we set on vault a data retrieval policy to a specific data rate.
Amazon Glacier is an extremely low-cost storage service that provides durable storage with security features 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.