[EC2] How do I extend a Linux file system after increasing an EBS volume on an EC2 instance?

Snapshot Backup 

1. Go to AWS Console > EC2 > Elastic Block Store > Volumes > Select Volume > Actions > Create Snapshot

Volume Expansion 

1. Go to AWS Console > EC2 > Elastic Block Store > Volumes > Select Volume > Actions > Modify Volume > Change Size 

File System Expansion 

1. Before Expansion - Check Status 

   # df -hT
   # lsblk

2. Expand the File System 

   # sudo xfs_growfs -d /파일시스템

3. After Expansion - Verify Changes 

   # df -hT
   # lsblk