Attatch a new EBS volume with running instance to make Backup

In this article , I'm explaining how to extend your ebs machine volume. Let the EBS  volume created is: /dev/sdf and you are creating one volume.

Now take back up of   /opt

	#mkdir /opt_backup
	#cp /opt /opt_backup>
    

• Login to your instance using your terminal.
• type fdisk /dev/sdf
• At "Command" type n
• At "Primary or Extended" type p
• At Number of volumes type 1
• Press "Return" two times to accept the default cylinder values
• Press "w" to write the partition table and exit
• Type "mkfs.ext3 /dev/sdf" to format an ext3 file system
• Type mount /dev/sdf /opt to mount the drive
• edit /etc/fstab to add the drive mount to automount at boot.

vi /etc/fstab

add this line:

/dev/sdf /opt ext3 defaults 0 0

• You have successfully attatched a new volume to your running instance.
    Type “df -h” in terminal to check it

• copy back data from /opt_backup to /opt

#cp /opt_backup /opt