This will work if you made the PV your whole disk. If you want to do so with partition follow the link HERE.

I use XCP-NG and when adding additional space to an existing disk I scan for the extra space using the command below and the extra space doesn’t appear.


So to get it to rescan the disk for the extra space you have to do the following command.

pvresize /dev/xvdX

Now when you scan for the additional space with the command below you will see it and now you can grow the LV as needed.