## 📜 **DEPLOYMENT_STEPS.md**
\# Deployment Steps – AWS S3 to EFS Data Migration using DataSync
This document provides a detailed guide to deploy and verify the \*\*S3 → EFS migration\*\* using AWS services.
---
\## Step 1: Create an S3 Bucket
1\. Go to \*\*AWS Console → S3 → Create Bucket\*\*.
2\. Enter a unique name (e.g., `s3-datasync-source-bucket`).
3\. Keep defaults and click \*\*Create Bucket\*\*.
4\. Upload files or folders that you want to migrate.
---
\## Step 2: Create an EFS File System
1\. Navigate to \*\*AWS Console → EFS → Create File System\*\*.
2\. Choose:
- \*\*VPC:\*\* Same VPC where your EC2 will be launched.
- \*\*Mount Targets:\*\* Create for each Availability Zone (if needed).
3\. Note down the \*\*EFS DNS name\*\* (e.g., `fs-xxxxxx.efs.ap-south-1.amazonaws.com`).
---
\## Step 3: Create AWS DataSync Locations
1\. Go to \*\*AWS Console → DataSync → Locations → Create location\*\*.
2\. \*\*For Source:\*\*
- Select \*\*Amazon S3\*\*.
- Choose your S3 bucket.
3\. \*\*For Destination:\*\*
- Select \*\*Amazon EFS\*\*.
- Choose your EFS file system.
---
\## Step 4: Create and Run a DataSync Task
1\. Go to \*\*DataSync → Create Task\*\*.
2\. Select \*\*S3 (source)\*\* and \*\*EFS (destination)\*\*.
3\. Configure:
- \*\*Task Name:\*\* `s3-to-efs-datasync`
- \*\*Bandwidth limit:\*\* Default
- \*\*Task execution role:\*\* Automatically created
4\. Review and click \*\*Create Task\*\*.
5\. Once created, click \*\*Start Task\*\* → \*\*Verify transfer status\*\* (should show “Success”).
---
\## Step 5: Launch EC2 Instance using AWS CloudShell
1\. Open \*\*CloudShell\*\* in AWS Console.
2\. Run the command:
```bash
-> aws ssm get-parameter --name /aws/service/datasync/ami --region your-region
-> https://console.aws.amazon.com/ec2/v2/home?region=your-region#LaunchInstanceWizard:ami=ami-id
3\. Once launched copy the public IP address of EC2 instance.
\## Step 6: Connect to EC2 using MobaXterm
1. Open MobaXterm → Session → SSH.
2\. Enter:
Remote Host: <EC2 Public IP>
Username: ec2-user
Key File: my-keypair.pem
3\. Click OK to connect.
\## Step 7: Install NFS Utils and Mount EFS
1.Inside EC2 terminal:
sudo yum update -y
sudo yum install -y nfs-utils
sudo mkdir /mnt/efs
sudo mount -t nfs4 -o nfsvers=4.1 fs-xxxxxx.efs.ap-south-1.amazonaws.com:/ /mnt/efs
\## Step 8: Verify Migrated Data
1. Run:
ls /mnt/efs
You should see all files that were originally in the S3 bucket.
\## Outcome:
1. DataSync Task: Shows “Successful” status.
2\. EFS Mounted: Verified under /mnt/efs.
3\. File Consistency: Source and destination data match.
\## Clean-Up (Optional)
After verification:
1.Stop and terminate EC2 instance.
2.Delete DataSync task.
3.Remove S3 bucket or EFS if no longer needed.
\## 👩💻 Author
\*\*Keerthi B\*\*
📧 Email: bkeerthi1528@gmail.com
🔗 LinkedIn: \[www.linkedin.com/in/siva-sai-keerthi-bondalapati-b89779248](#)