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Create a pool on a single drive and specify a mountpoint for it. Note: use id, not uuid.

zpool create -m /mnt/Pool Pool -f /dev/disk/by-id/b592...

If you have more than one drive to begin with, you can make mirrors as follows:

zpool create -m /mnt/Pool Pool -f mirror /dev/disy/by-id/2323... /dev/disy/by-id/3232...

If you accidentally used short names, then export and import to change it asap like this:

zpool export vms 
zpool import -d /dev/disk/by-id vms

If you messed up and picked a wrong name and/or mountpoint, adjust later as follows. To rename:

zpool export [pool_name]
zpool import [original_pool_name] [new_pool_name]

To change mountpoint:

zfs set mountpoint=/myspecialfolder mypool

If you now have more than one drive, add another drive as a mirror as follows:

zpool attach nameofpool /dev/disk/by-id/currentdisk /dev/disk/by-id/newdisk

To create an encrypted dataset you generate a key and then specify the location and name of the pool as follows:

dd if=/dev/random of=/secure/area/example.key bs=1 count=32
zfs create -o encryption=on -o keyformat=raw -o keylocation=file:///mnt/vault/example.key pool/dataset

After reboot, import (mount), the data set as follows:

zfs load-key pool/dataset
zfs mount pool/dataset