Dear Phany,
If you want to implement Hypermetro for NAS, and you need to assign existing filesystems to a vStore, in order to configure the Hypermetro relationship. You can use the "change file_system vstore" command to change the owning vStore of a file system.
Before changing the owning vStore, you need to remove all the filesystem configuration first, as the command example details.
After the owning vStore is changed, reconfigure any required features on the filesystem.
Thanks.