By "not keep", you mean that PVE might revert the name back to the original?
Thanks for the guidance on serial/wwn - I'll look into using those as an alternative.
I have created a zfspool storage on one of my nodes:
# From /etc/pve/storage.cfg:
zfspool: zfs-data-vols-thick
pool tank/proxmox/data-vols-thick
content images
mountpoint /tank/proxmox/data-vols-thick
sparse 0
Within this...