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Amazon EBS (Elastic Block Store) is a scalable block storage service designed for Amazon EC2 instances. It provides durable, high-performance storage that can be attached to running instances. Below is a step-by-step guide to setting up and managing EBS volumes.
Steps to Configure EBS for EC2
1. Create an EBS Volume
- Go to the AWS Management Console → EC2 Dashboard → Volumes → Create Volume.
- Select the Volume Type (gp3 for general-purpose, io1/io2 for high IOPS).
- Specify Size (in GiB) and Availability Zone (must match the EC2 instance’s AZ).
AWS CLI Command:
aws ec2 create-volume --availability-zone us-east-1a --size 100 --volume-type gp3
2. Attach the EBS Volume to an EC2 Instance
- In the EC2 Volumes section, select the volume → Actions → Attach Volume.
- Choose the EC2 Instance ID and specify a Device Name (e.g.,
/dev/sdf).
**AWS CLI Command:**
aws ec2 attach-volume --volume-id vol-1234567890abcdef0 --instance-id i-0123456789abcdef0 --device /dev/sdf
### **3. Format and Mount the EBS Volume**
- SSH into your EC2 instance:
ssh -i "your-key.pem" ec2-user@your-instance-ip
- Check the attached disk:
lsblk
- Format the disk (if new):
sudo mkfs -t xfs /dev/xvdf
- Create a mount directory:
sudo mkdir /mnt/ebs_volume
- Mount the volume:
sudo mount /dev/xvdf /mnt/ebs_volume
- Make mount persistent (add to
/etc/fstab)echo "/dev/xvdf /mnt/ebs_volume xfs defaults,nofail 0 2" | sudo tee -a /etc/fstab
### **4. Monitor and Backup EBS Volumes**
- Use CloudWatch for monitoring:
aws cloudwatch get-metric-statistics --namespace AWS/EBS --metric-name VolumeReadBytes --dimensions Name=VolumeId,Value=vol-1234567890abcdef0 --start-time 2023-10-01T00:00:00 --end-time 2023-10-02T00:00:00 --period 3600 --statistics Average
- Create EBS Snapshots (Backup):
aws ec2 create-snapshot --volume-id vol-1234567890abcdef0 --description "Daily Backup"
## **You Should Know:**
✔ **EBS Volume Types:**
- gp3: General-purpose SSD (balanced price/performance).
- io1/io2: High-performance SSD (for databases).
- st1: Low-cost HDD (throughput-optimized).
- sc1: Cold HDD (cheapest, rarely accessed data).
✔ **Detaching EBS Safely:**
sudo umount /mnt/ebs_volume aws ec2 detach-volume --volume-id vol-1234567890abcdef0
✔ **Resizing EBS:**
- Modify volume in AWS Console → Extend filesystem:
sudo growpart /dev/xvdf 1 sudo xfs_growfs /mnt/ebs_volume
## **What Undercode Say:**
Amazon EBS is essential for persistent storage in AWS. Always:
– Encrypt volumes for security (aws ec2 enable-ebs-encryption-by-default).
– Automate snapshots using AWS Backup or Lambda.
– Monitor IOPS/throughput to avoid bottlenecks.
– Use Linux commands (df -h, iostat -x 5) for disk health checks.
**Expected Output:**
A fully mounted EBS volume accessible at `/mnt/ebs_volume` with automated backups and performance monitoring.
**Further Reading:**
References:
Reported By: Riyazsayyad Imagine – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
