Windows partitions
From OpenZFS on OS X
Powershell
Get-Partition | ForEach-Object { [PSCustomObject]@{ Path = "\\?\Harddisk$($_.DiskNumber)Partition$($_.PartitionNumber)" Size = "$($_.Size) bytes" AccessPath = ($_.AccessPaths -join ", ") } } | Format-Table -AutoSize
Then use the syntax: zpool create BOOM HarddiskXPartitionY