What are the different states that an EBS volume can have?

What is the relationship between the state of an EC2 instance and its associated EBS volumes? How do EBS volumes behave in terms of attachment, detachment, and deletion in different EC2 instance states.

what are the disadvantages of using HDD in cloud?

They are slower for both data access and retrieval, as well as write operations, leading to longer wait times when saving, updating or retrieving data.

What happens to the data after detaching volume from the instance?

When you detach an EBS volume from an EC2 instance, the data on it stays safe and can still be accessed, as long as the volume is not deleted. You can attach the volume to the same or another instance later to get the data back.

What is the reason for attaching additional volumes to an instance?

Attaching additional EBS volumes to an EC2 instance gives you more storage and helps keep the operating system separate from your data. This makes it easier to manage, back up, and improve performance.