Lab Information
As part of a data migration project, the team lead has tasked the team with migrating data from an existing S3 bucket to a new S3 bucket. The existing bucket contains a substantial amount of data that must be accurately transferred to the new bucket. The team is responsible for creating the new S3 bucket and ensuring that all data from the existing bucket is copied or synced to the new bucket completely and accurately. It is imperative to perform thorough verification steps to confirm that all data has been successfully transferred to the new bucket without any loss or corruption.
As a member of the Nautilus DevOps Team, your task is to perform the following:
Create a New Private S3 Bucket: Name the bucket datacenter-sync-14788.
Data Migration: Migrate the entire data from the existing datacenter-s3-12806 bucket to the new datacenter-sync-14788 bucket.
Ensure Data Consistency: Ensure that both buckets have the same data.
Use AWS CLI: Use the AWS CLI to perform the creation and data migration tasks.
Lab Solutions
✅ STEP 1 — Create the New S3 Bucket
Run this command in us-east-1:
aws s3 mb s3://datacenter-sync-14788 --region us-east-1
S3 buckets are private by default — no extra action needed.
✅ STEP 2 — Sync (Copy) All Data From the Source Bucket
Existing bucket (source):
datacenter-s3-12806
New bucket (destination):
datacenter-sync-14788
Run:
aws s3 sync s3://datacenter-s3-12806 s3://datacenter-sync-14788
This copies:
All objects
All folders
Maintains structure
Skips duplicates on re-run
✅ STEP 3 — Verify the Data Migration
✔ Check number of files and total size
# Source:
aws s3 ls s3://datacenter-s3-12806 --recursive --summarize
# Destination:
aws s3 ls s3://datacenter-sync-14788 --recursive --summarize
Both should show the same number of files and the same total size.
# Dry-run comparison (should show no differences)
aws s3 sync s3://datacenter-s3-12806 s3://datacenter-sync-14788 --dryrun
Top comments (0)