How much can I save using this migration skill?

By moving large datasets from Cloudflare R2 to AWS Glacier Deep Archive, you can achieve over 90% cost savings, reducing storage costs from ~$15/TB to ~$1/TB.

Can the migration resume if the process crashes?

Yes, the skill utilizes a JSON-based checkpoint system to track progress, allowing you to resume transfers exactly where they left off using the --resume flag.

Is there a way to test the migration before committing?

Yes, the skill supports a dry-run mode to count objects and a small batch testing mode to verify credentials and connectivity before starting a full transfer.

How do I monitor the progress of a transfer?

You can use provided commands to check active screen sessions, tail remote log files via SSH, or inspect the current checkpoint JSON file.

What storage class does this skill target in AWS?

It is specifically configured for the DEEP_ARCHIVE storage class in AWS S3, which offers the lowest storage price point for long-term data retention.

R2 to AWS Glacier Migration Manager

Name: R2 to AWS Glacier Migration Manager
Author: pollinations

bypollinations

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3,486

Cloud Infrastructure

Manages and monitors large-scale data migrations from Cloudflare R2 to AWS S3 Glacier Deep Archive to optimize storage costs.

About

This skill empowers Claude to assist with the complex process of migrating massive datasets, such as the 42.6 TB transfer from Cloudflare R2 to AWS S3 Glacier Deep Archive utilized by Pollinations. It provides specialized commands for monitoring transfer status via SSH, resuming interrupted transfers using checkpoints, and managing batch processing. It is designed to help teams achieve significant cost savings—reducing monthly expenses from roughly $638 to $42—while ensuring data integrity through verified logging and robust streaming patterns.

Key Features

Integrated cost-saving calculators and storage class verification
Configurable batch size and concurrency settings for high-volume streaming
3,486 GitHub stars
Resilient checkpoint management to resume interrupted migrations seamlessly
Automated transfer monitoring and log analysis via remote SSH commands
Support for multi-terabyte bucket status tracking and management

Use Cases

Rescuing failed migration processes without duplicating existing transfers
Monitoring long-running background data transfers on remote servers
Archiving massive production datasets to low-cost cold storage

About

Key Features

Integrated cost-saving calculators and storage class verification
Configurable batch size and concurrency settings for high-volume streaming
3,486 GitHub stars
Resilient checkpoint management to resume interrupted migrations seamlessly
Automated transfer monitoring and log analysis via remote SSH commands
Support for multi-terabyte bucket status tracking and management

Use Cases

Rescuing failed migration processes without duplicating existing transfers
Monitoring long-running background data transfers on remote servers
Archiving massive production datasets to low-cost cold storage