Amazon Glacier
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Amazon Glacier vs Amazon S3: What are the differences?

Amazon Glacier: Low-cost storage service that provides secure and durable storage for data archiving and backup. In order to keep costs low, Amazon Glacier is optimized for data that is infrequently accessed and for which retrieval times of several hours are suitable. With Amazon Glacier, customers can reliably store large or small amounts of data for as little as $0.01 per gigabyte per month, a significant savings compared to on-premises solutions; Amazon S3: Store and retrieve any amount of data, at any time, from anywhere on the web. Amazon Simple Storage Service provides a fully redundant data storage infrastructure for storing and retrieving any amount of data, at any time, from anywhere on the web.

Amazon Glacier and Amazon S3 are primarily classified as "Data Backup" and "Cloud Storage" tools respectively.

Some of the features offered by Amazon Glacier are:

  • Low cost – Amazon Glacier is an extremely low-cost, pay-as-you-go storage service that can cost as little as $0.01 per gigabyte per month.
  • You store data in Amazon Glacier as archives. An archive can represent a single file or you may choose to combine several files to be uploaded as a single archive. Retrieving archives from Amazon Glacier requires the initiation of a job. Jobs typically complete in 3 to 5 hours. You organize your archives in vaults.
  • Secure – Amazon Glacier supports secure transfer of your data over Secure Sockets Layer (SSL) and automatically stores data encrypted at rest using Advanced Encryption Standard (AES) 256, a secure symmetric-key encryption standard using 256-bit encryption keys.

On the other hand, Amazon S3 provides the following key features:

  • Write, read, and delete objects containing from 1 byte to 5 terabytes of data each. The number of objects you can store is unlimited.
  • Each object is stored in a bucket and retrieved via a unique, developer-assigned key.
  • A bucket can be stored in one of several Regions. You can choose a Region to optimize for latency, minimize costs, or address regulatory requirements. Amazon S3 is currently available in the US Standard, US West (Oregon), US West (Northern California), EU (Ireland), Asia Pacific (Singapore), Asia Pacific (Tokyo), Asia Pacific (Sydney), South America (Sao Paulo), and GovCloud (US) Regions. The US Standard Region automatically routes requests to facilities in Northern Virginia or the Pacific Northwest using network maps.

"Cold Storage" is the primary reason why developers consider Amazon Glacier over the competitors, whereas "Reliable" was stated as the key factor in picking Amazon S3.

According to the StackShare community, Amazon S3 has a broader approval, being mentioned in 3235 company stacks & 1615 developers stacks; compared to Amazon Glacier, which is listed in 24 company stacks and 9 developer stacks.

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What is Amazon Glacier?

In order to keep costs low, Amazon Glacier is optimized for data that is infrequently accessed and for which retrieval times of several hours are suitable. With Amazon Glacier, customers can reliably store large or small amounts of data for as little as $0.01 per gigabyte per month, a significant savings compared to on-premises solutions.

What is Amazon S3?

Amazon Simple Storage Service provides a fully redundant data storage infrastructure for storing and retrieving any amount of data, at any time, from anywhere on the web

Want advice about which of these to choose?Ask the StackShare community!

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      What are some alternatives to Amazon Glacier and Amazon S3?
      Google Drive
      The Drive SDK gives you a group of APIs along with client libraries, language-specific examples, and documentation to help you develop apps that integrate with Drive. The core functionality of Drive apps is to download and upload files in Google Drive. However, the Drive SDK provides a lot more than just storage.
      Google Cloud Storage
      Google Cloud Storage allows world-wide storing and retrieval of any amount of data and at any time. It provides a simple programming interface which enables developers to take advantage of Google's own reliable and fast networking infrastructure to perform data operations in a secure and cost effective manner. If expansion needs arise, developers can benefit from the scalability provided by Google's infrastructure.
      AWS Storage Gateway
      The AWS Storage Gateway is a service connecting an on-premises software appliance with cloud-based storage. Once the AWS Storage Gateway’s software appliance is installed on a local host, you can mount Storage Gateway volumes to your on-premises application servers as iSCSI devices, enabling a wide variety of systems and applications to make use of them. Data written to these volumes is maintained on your on-premises storage hardware while being asynchronously backed up to AWS, where it is stored in Amazon Glacier or in Amazon S3 in the form of Amazon EBS snapshots. Snapshots are encrypted to make sure that customers do not have to worry about encrypting sensitive data themselves. When customers need to retrieve data, they can restore snapshots locally, or create Amazon EBS volumes from snapshots for use with applications running in Amazon EC2. It provides low-latency performance by maintaining frequently accessed data on-premises while securely storing all of your data encrypted.
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      Decisions about Amazon Glacier and Amazon S3
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      Reviews of Amazon Glacier and Amazon S3
      Review ofAmazon S3Amazon S3

      Insanely low prices, quite easy to use, and they're fast. Plus they provide great support. And they're integrated with other AWS services, like CloudFront.

      Seriously, this is the best service of it's kind out there.

      How developers use Amazon Glacier and Amazon S3
      Avatar of CloudRepo
      CloudRepo uses Amazon S3Amazon S3

      We store the software components that CloudRepo stores for its customers here for the following reasons:

      • Data is Encrypted at Rest
      • Data is stored across multiple physical locations
      • Pricing is competitive
      • Reliability is industry leading and our customers need to be able to access their data at all times list text here
      Avatar of Yelp
      Yelp uses Amazon S3Amazon S3

      In October 2008 we moved to using scribe (now a custom branch), which has served us very well over the past 5+ years that we’ve been using it. We take the logs scribe aggregates and move them into Amazon S3 for storage, which makes using EMR on AWS seamless.

      Avatar of cloak.ly
      cloak.ly uses Amazon S3Amazon S3

      S3 serves as zero-knowledge temporary storage. Files are encrypted in the browser before being uploaded in chunks to S3. When the target recipient downloads them the chunks are reassembled and decrypted in the browser. Files expire after a week and the encrypted chunks are permanently deleted from S3.

      Avatar of CloudRepo
      CloudRepo uses Amazon S3Amazon S3

      Since we generate a static website for our website, AWS S3 provides hosting for us so that we don't have to run our own servers just to serve up static content.

      The pricing is great as you only pay for what you use.

      Avatar of Tana
      Tana uses Amazon S3Amazon S3

      This object storage is always evolving and getting harder to explain. We use it for 1) hosting every static websites, 2) datalake to store every transaction and 3) query with Athena / S3 Select.

      Avatar of Loog
      Loog uses Amazon GlacierAmazon Glacier

      All data is backed up and archived into Amazon Glacier.

      Avatar of Vaultize
      Vaultize uses Amazon GlacierAmazon Glacier

      Cold storage in Vaultize public cloud.

      Avatar of Mohamed El-Kalioby
      Mohamed El-Kalioby uses Amazon GlacierAmazon Glacier

      Keep Data Backup

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