if you are using basic disk, you would create a concatenated meta and then use diskpart the extend the partition.

I extended the storage by creating a new lun in a new RG and migrate the data, this has worked fine. On the host side I do see the extended data as unallocated. (Didn't use metaluns). I am thinking now I should use diskpart, list volume, select volume# and type extend. Do you agree? Thank you.

great, thank you for your quick reply.

Hey jellybean, welcome to the Forums.

Just wanted to point out (since you are new here) that you can not only mark your question answered but also assign points to helpful members (like dynamox) by tagging specific responses in the thread as "helpful" or "correct".