How to increase FS which is in LVM in AWS

How to extend EBS volume which is part of LVM:

And

How to increase FS which is in LVM in AWS :

As our day to day task, we may get request to increase filesystem size by some GB value. Suppose that filesystem is part of LVM and the instance is hosted on AWS then below steps you can follow.

1. Fist you have to identify the volume for server

2. Identify the volume from AWS and increase size

3. Make new size visible on server/instance.

4. Extend the mountpoint and hence filesystem to desired value.

Note: Here we are not adding new volume we are using existing volume only. The steps for new volume are different and quite simple too.

In this example, we are going to extend the existing volume /dev/xvdm (current size: 700GB) by 300GB which is part of LVM or belongs to volume group “VolGroup02”. Mount point name is /application.

From AWS End:

1. Login to AWS console and search our instance with instance ID or instance name.
2. Check devices attached to respective instance. Check for /dev/sdm (On server, we will see it as /dev/xvdm) volume which we are going to increase by 300GB
3. Click on volume /dev/sdm and choose modify volume option and increase it by 300GB. New size will be 1000GB.

After modifying the volume from AWS end we have to check on server whether it is modified or not.

From Server End:

1. Check size of our volume on server.

    #pvs |grep -i xvdm

It will not show the new size.

2. Resize the PV so the total size of the volume will be visible

#pvresize /dev/xvdm

 3. Recheck the size of volume; it will show new value now. 

Now we want to extend the mountpoint /application

4. Extend the logical volume by lvextend

    

+100%FREE - It will use 100%  of the free space to extend the volume.

5. Resize the filesystem.

6. Check new size of filesystem.

[root@mycloud ~]# df -h /applicaiton

Regards,

Kiran Jadhaw