====== How to increase your disk size ======

Increasing the size of your disk occurs in 2 steps:

  * the expanding of the "volume group", which is done directly and automatically via your disk management interface.
  * changing the size of the "filesystem", which must be done manually for servers in Expert mode.

  * [[en:iaas:references:disk:resize:classic|Expand a disk with an expert server]] 

====== How to decrease your disk size ======
It is not possible to decrease the size of your disk due to a potential risk of losing data if the new size is not sufficient for the amount of data necessary.

What you can do however is:

  - Create a new disk of the desired (smaller) size,
  - Attach it to your server and move the data to the new disk,
  - Verify the data on the new disk,
  - Remove the old disk and delete it.