Solved How to attach a partition (vdev) to a ZFS dataset ?

Hello,
I have a zpool named zroot on top of 3-way mirroring (ada0p4, ada1p4, ada2p4), and zroot/data with mountpoint /data. Now I would like to set zroot/data to use a partition of a fourth disk (namely ada3p1). How could I do that?
Thx for your helps.
 
Make a new pool from that ada3p1 partition and move the data set to the new pool (assuming you want to keep that data on ZFS).
 
Yes, Sir
I know that. Because of definition of zfs pool and dataset, I think there is no possibility to attach a sole vdev to a sole dataset, right?
Thank you, Sir.
 
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