Custom snapshot location for each virtual disk

[jeremywj]

I was hoping to set up a mirrored disk set up with zfs having two vdi'a stored on two different physical disks. In theory then if one physical disk was lost I would still have my mirrored data. However, due to the fact that I have snapshots the data is actually be written to the same physical disk despite the real vdi's being on two separate physical disks.

I request a feature to be able to define the location of snapshot files for each virtual disk.