HowTo destroy a zpool with lun unavailable (lun destroys before the zpool)

Hello,

By mistake the lun(s)  in a zpool(s)  have been destroy before destroy the zpool(s),

so the zpools is always there with the zfs fs but is there in I/O error of course. 

We can't recover the lun because they are suppress from san configuration. 

We can't  destroy them   with zpool destroy -f  "pooName"  because the devices aren't there.

and the command is hang ... have you a idea to help me to resolve this problem.

thank.

Alain