Mine

ne1# ./create.pl titan 5 3 2
titan/01
titan/01/01
titan/01/01/01
titan/01/01/02
titan/01/02
titan/01/02/01
titan/01/02/02
titan/01/03
titan/01/03/01
titan/01/03/02
titan/02
titan/02/01
titan/02/01/01
titan/02/01/02
titan/02/02
titan/02/02/01
titan/02/02/02
titan/02/03
titan/02/03/01
titan/02/03/02
titan/03
titan/03/01
titan/03/01/01
titan/03/01/02
titan/03/02
titan/03/02/01
titan/03/02/02
titan/03/03
titan/03/03/01
titan/03/03/02
titan/04
titan/04/01
titan/04/01/01
titan/04/01/02
titan/04/02
titan/04/02/01
titan/04/02/02
titan/04/03
titan/04/03/01
titan/04/03/02
titan/05
titan/05/01
titan/05/01/01
titan/05/01/02
titan/05/02
titan/05/02/01
titan/05/02/02
titan/05/03
titan/05/03/01
titan/05/03/02


ne1# ./create.pl titan 20 10 10 10 | xargs -n 1 -t zfs create
zfs create titan/01
zfs create titan/01/01
zfs create titan/01/01/01
zfs create titan/01/01/01/01
zfs create titan/01/01/01/02
zfs create titan/01/01/01/03
zfs create titan/01/01/01/04
zfs create titan/01/01/01/05
zfs create titan/01/01/01/06
zfs create titan/01/01/01/07
zfs create titan/01/01/01/08
zfs create titan/01/01/01/09
zfs create titan/01/01/01/10
zfs create titan/01/01/02
zfs create titan/01/01/02/01
zfs create titan/01/01/02/02
zfs create titan/01/01/02/03
zfs create titan/01/01/02/04
zfs create titan/01/01/02/05
zfs create titan/01/01/02/06
zfs create titan/01/01/02/07


               capacity     operations    bandwidth
pool         used  avail   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
titan       4.85G   219G      0      2  23.7K  30.2K
titan       4.85G   219G      0    462      0  5.22M
titan       4.85G   219G      0    434      0  4.89M
titan       4.85G   219G      0    433      0  4.81M
titan       4.85G   219G      0    446      0  5.04M
titan       4.85G   219G      0    424      0  4.75M
titan       4.85G   219G      0    392      0  4.45M