Free space merging

Hi, I have a md3200i, with 12x1Tb in raid5 disks with a big volume at the begining and some smaller ones after that, with some free space at the end:

volume1          8,192.000 GB 
cluster2-vms    200.000 GB
cluster2-vms2  100.000 GB 
proxmox4        5.000
proxmox5        5.000
proxmox6        5.000
proxmox7        5.000

My question is, if I were to delete volume1, would it be possible to expand cluster2-vms or cluster2-vms2 or the free space used to expand a volume must be contiguous?