🧊S3 Glacier

NEW

An Amazon S3 storage class for low-cost, long-term archival with retrieval options from minutes to hours or days.

DESCRIPTION

Amazon S3 Glacier provides secure, durable, and cost-effective storage for infrequently accessed data. It supports multiple retrieval tiers, including Instant Retrieval, Flexible Retrieval, and Deep Archive, balancing cost and access time. Organizations use Glacier for backups, compliance archives, and data retention policies. Integration with S3 lifecycle rules enables automated transitions. Encryption, audit logging, and regional durability meet governance and regulatory needs.

ALTERNATIVE DEFINITIONS

AWS

Amazon S3 Glacier is a secure, durable, and low-cost Amazon S3 storage class for data archiving and long-term backup.

Highlights security, durability, and low cost for archiving.

Source

AWS

S3 Glacier storage classes are designed for archiving data, providing configurable retrieval times at the lowest storage cost.

Emphasizes configurable retrieval and lowest cost among S3 classes.

Source

Wikipedia

Amazon S3 Glacier is a cloud storage service from Amazon Web Services designed for data archiving and long-term backup.

Places Glacier within AWS’s cloud storage services for archival.

Source

RELATED TERMS

Amazon S3 Object Storage Archival Storage Lifecycle Policies Cold Storage Data Retention Compliance Restore Retrieval Tier Backup

COMPETING TERMS

Azure Archive Storage Google Cloud Archive Tape Storage

KNOWLEDGE AREAS

Cloud Data Services Data Storage & Operations Data Management

TARGET AUDIENCE

Cloud Architect Data Engineer IT Manager Chief Information Security Officer Data Privacy Officer

EXTERNAL SOURCES

• Wikipedia - Amazon S3
• AWS - Official Glacier storage class overview
• AWS - Lifecycle transition to Glacier
• Google Cloud - Competing archive storage classes

TOP QUESTIONS

When should you use S3 Glacier?

Use Glacier for data retained long-term but infrequently accessed, such as backups, compliance archives, and cold data.

Category: Requirements

What are Glacier retrieval options?

Instant, Standard, Bulk, and Deep Archive tiers provide retrieval from minutes to hours or days depending on cost.

Category: Overview

How do lifecycle policies work with S3 Glacier?

Lifecycle rules automatically transition objects to Glacier classes after specified retention periods, reducing storage costs.

Category: Management

What is the risk of using S3 Glacier incorrectly?

Unexpected retrieval charges and delays can disrupt workflows. Misconfigured lifecycle policies may archive active data prematurely.

Category: Risks

How does S3 Glacier ensure durability?

AWS replicates data across multiple facilities, providing eleven nines durability and encryption for protection.

Category: Overview

What are alternatives to S3 Glacier?

Azure Archive and Google Archive offer similar archival tiers. On-prem tape may suit specific regulatory or cost scenarios.

Category: Alternatives

How to estimate costs with S3 Glacier?

Use AWS calculators, consider storage, retrieval tier, data transfer, and requests. Model access patterns realistically.

Category: Best practices

Can you query data in S3 Glacier directly?

Objects must be restored to an accessible tier before direct access; Glacier Select supports limited queries in some cases.

Category: Misunderstanding

What’s a hot topic around S3 Glacier?

Balancing instant retrieval needs with cost by tiering between Glacier Instant Retrieval and Deep Archive.

Category: Topic