okay, @Platypussy is right:
root@Ubu2004RedChungus:/home/ish# zpool list -v Curoch
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
Curoch 2.03T 729G 1.32T - - 15% 35% 1.00x ONLINE -
raidz1-0 2.03T 729G 1.32T - - 15% 35.0% - ONLINE
sdh1 699G - - - - - - - ONLINE
sdg1 699G - - - - - - - ONLINE
sde1 699G - - - - - - - ONLINE
root@Ubu2004RedChungus:/home/ish# zpool export Curoch ; sleep 5 ; zpool import -d /dev/disk/by-id Curoch ; sleep 5 ; zpool list -v Curoch
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
Curoch 2.03T 729G 1.32T - - 15% 35% 1.00x ONLINE -
raidz1-0 2.03T 729G 1.32T - - 15% 35.0% - ONLINE
wwn-0x50026b7682991bd0-part1 699G - - - - - - - ONLINE
wwn-0x500253884023bc67-part1 699G - - - - - - - ONLINE
wwn-0x500253885009ce56-part1 699G - - - - - - - ONLINE
root@Ubu2004RedChungus:/home/ish# zpool export Curoch ; sleep 5 ; zpool import -d /dev/disk/by-partuuid Curoch ; sleep 5 ; zpool list -v Curoch
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
Curoch 2.03T 729G 1.32T - - 15% 35% 1.00x ONLINE -
raidz1-0 2.03T 729G 1.32T - - 15% 35.0% - ONLINE
f1098db0-5569-9047-8bc5-2a7c2573f3ab 699G - - - - - - - ONLINE
a408494e-57a2-314d-8c5e-8e6a0053050c 699G - - - - - - - ONLINE
73716b89-f720-d245-9a6f-1ba001be2317 699G - - - - - - - ONLINE