Resize AWS EC2 Volume

AWS

In this excerise, we will try to resize a volume for EC2

  • Size(any type) and IOPS(Some types) can be increased for the EBS volumes
  • Repartition required after resizing
  • The volume is still usable after increasing the size
  • Can’t decrease the EBS volume size

Check volume before the resize

[root@ip-111-111-111-111 ec2-user]# lsblk
NAME      MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
xvda      202:0    0   8G  0 disk
├─xvda1   202:1    0   8G  0 part /
├─xvda127 259:0    0   1M  0 part
└─xvda128 259:1    0  10M  0 part
[root@ip-111-111-111-111 ec2-user]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs           477M     0  477M   0% /dev/shm
tmpfs           191M  2.8M  188M   2% /run
/dev/xvda1      8.0G  1.6G  6.4G  20% /
tmpfs           477M     0  477M   0% /tmp
tmpfs            96M     0   96M   0% /run/user/1000

Resize the volume

  • Go to EC2->Elastic Block Store -> Volumes
  • Select the volume to be resized
  • Go to Actions->Modify volume
  • Change the Size to the one we need, for example from 8GB to 10GB here
  • Check the volume
[root@ip-111-111-111-111 ec2-user]# lsblk
NAME      MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
xvda      202:0    0  10G  0 disk
├─xvda1   202:1    0   8G  0 part /
├─xvda127 259:0    0   1M  0 part
└─xvda128 259:1    0  10M  0 part
[root@ip-111-111-111-111 ec2-user]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs           477M     0  477M   0% /dev/shm
tmpfs           191M  2.8M  188M   2% /run
/dev/xvda1      8.0G  1.6G  6.4G  20% /
tmpfs           477M     0  477M   0% /tmp
tmpfs            96M     0   96M   0% /run/user/1000

Extend the partition and reboot

[root@ip-111-111-111-111 ec2-user]# growpart /dev/xvda 1
CHANGED: partition=1 start=24576 old: size=16752607 end=16777183 new: size=20946911 end=20971487
[root@ip-111-111-111-111 ec2-user]# lsblk
NAME      MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
xvda      202:0    0  10G  0 disk
├─xvda1   202:1    0  10G  0 part /
├─xvda127 259:0    0   1M  0 part
└─xvda128 259:1    0  10M  0 part
[root@ip-111-111-111-111 ec2-user]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs           477M     0  477M   0% /dev/shm
tmpfs           191M  2.8M  188M   2% /run
/dev/xvda1      8.0G  1.6G  6.4G  20% /
tmpfs           477M     0  477M   0% /tmp
tmpfs            96M     0   96M   0% /run/user/1000

[ec2-user@ip-111-111-111-111 ~]$ reboot

Confirm the volume resized

[ec2-user@ip-111-111-111-111 ~]$ lsblk
NAME      MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
xvda      202:0    0  10G  0 disk
├─xvda1   202:1    0  10G  0 part /
├─xvda127 259:0    0   1M  0 part
└─xvda128 259:1    0  10M  0 part
[ec2-user@ip-111-111-111-111 ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs           477M     0  477M   0% /dev/shm
tmpfs           191M  2.9M  188M   2% /run
/dev/xvda1       10G  1.6G  8.4G  16% /
tmpfs           477M     0  477M   0% /tmp
tmpfs            96M     0   96M   0% /run/user/1000