S3 Data Migration

S3 (Amazon Simple Storage Service) data migration entails transferring data stored in Amazon S3, a cloud-based object storage service offered by Amazon Web Services (AWS), to another system or S3 bucket within AWS.

S3 data migration involves several steps, such as data extraction, data transformation, data loading, data verification, and data archiving. S3 data migration can be complex and time-consuming, especially for organizations with large volumes of data and strict security and compliance requirements.

smart-file-data-migration-aws-thumbSmart Amazon S3 Data Migration and Data Management for File and Object Data

Komprise Elastic Data Migration is designed to make cloud data migrations simple, fast and reliable. It eliminates sunk costs with continual data visibility and optimization even after the migration. Komprise has received the AWS Migration and Modernization Competency Certification, verifying the solution’s technical strengths in file data migration.

A Smart Data Migration strategy for file workloads to Amazon S3 uses an analytics-driven approach to speed up data migrations and ensures the right data is delivered to the right tier in AWS, saving 70% or more on data storage and ultimately ensuring you can leverage advanced technologies in the cloud.

S3 Migration Done Right

When you’re migrating data or resources to Amazon Simple Storage Service (S3), a scalable object storage service offered by Amazon Web Services (AWS), your migrating to S3 can involve moving data from on-premises storage, another cloud provider, or even within different S3 buckets. Additionally, there are many possible S3 migration scenarios for unstructured data – for example, S3 to S3 migration, File to Object migration, Object to Object migration, etc. Whatever your object storage data migration strategy is, there are a number of basic steps considerations to keep in mind, including:


  • Identify the data you want to migrate.
  • Assess the size and type of data.
  • Consider access patterns and performance requirements.

Create an S3 Bucket:

  • Log in to the AWS Management Console.
  • Navigate to the S3 service.
  • Create a new bucket to store your data.

Set Up Permissions:

  • Configure access control lists (ACLs) and bucket policies to manage permissions.
  • Ensure that your IAM (Identity and Access Management) roles have the necessary permissions.

Data Transfer:

  • Many AWS customers start with AWS DataSync, AWS Snowball, AWS CLI, or SDKs to transfer data and then discover the analysis-first Komprise Elastic Data Migration solution.
  • For large-scale migrations, consider using AWS Snowball for physical transfer of data. Read the blog post here.

Update Applications:

  • If your data is being accessed by applications, update their configurations to point to the new S3 location.


  • Perform tests to ensure data integrity and that applications can access data from the new S3 location.

Switch Over:

  • Once testing is successful, switch over to using the new S3 location.
  • Update DNS entries or configurations as needed.


  • Set up monitoring and logging to track S3 usage and performance.
  • Implement alerts for any unexpected issues.


  • Once you are confident in the migration, clean up the old data storage and associated resources.


  • Update documentation to reflect the changes made during the migration.

Of course, the specifics of your S3 migration will vary depending on your use case, data volume, and existing infrastructure. It’s also important to consider security best practices and compliance requirements during the unstructured data migration process.

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