Day 14 Of Cloud with AWS: Attach an EBS Volume to an EC2 Instance
#100DaysOfCloud challenge using AWS
Objective: Attach an EBS Volume to an EC2 Instance
1
datacenter-volume
to the EC2 instance:
1
datacenter-ec2
in the:
1
us-east-1
region using the device name:
1
/dev/sdb
Step 1: Open AWS Console
- Login to the AWS Management Console.
- Select region:
1
us-east-1
from the top-right corner.
Step 2: Open EC2 Dashboard
- Search for:
1
EC2
- Open the EC2 service.
Step 3: Open Volumes Section
- In the left sidebar, under:
1
Elastic Block Store
- Click:
1
Volumes
Step 4: Locate the Volume
- Find the volume named:
1
datacenter-volume
- Select the checkbox next to it.
Make sure:
- Volume state is:
1
Available
If it already says:
In-use
then it is already attached somewhere else.
Step 5: Attach the Volume
- Click:
1
Actions
- Select:
1
Attach volume
Step 6: Configure Attachment
In the attachment window:
| Setting | Value |
|---|---|
| Instance | datacenter-ec2 |
| Device name | /dev/sdb |
Important:
- Type exactly:
1
/dev/sdb
Step 7: Complete Attachment
- Click:
1
Attach volume
AWS will now attach the EBS volume to the EC2 instance.
Step 8: Verify
After a few seconds:
- Refresh the Volumes page.
- Confirm:
- Volume state shows:
1
In-use
- Attached instance is:
1
datacenter-ec2
- Device name is:
1
/dev/sdb
EBS volume:
- Elastic → Storage size and performance can be scaled.
- Block → Data is stored in fixed-size blocks like a hard disk/SSD.
- Store → Used for storing operating systems, applications, and files.
An EBS volume behaves like a virtual hard drive attached to an EC2 instance.
What Does Device Name Mean?
The device name represents how the storage volume appears inside the operating system.
For Linux EC2 instances:
/dev/sda→ usually root disk/dev/sdb→ additional attached disk
Once attached, the instance can mount and use this volume as extra storage.
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