Unable to clear a suspended zpool

Hi all,

After an error from the SAN team, a few disks have been removed from one of our servers, and reappeared a few minutes later. All the zpools were in suspended state. I tried to clear the status, and it worked for most of them, but not for two zpools, still in suspended state :

  pool: armen_log

state: SUSPENDED

status: One or more devices are faulted in response to IO failures.

action: Make sure the affected devices are connected, then run 'zpool clear'.

   see: http://www.sun.com/msg/ZFS-8000-HC

scan: none requested

config:

        NAME                                     STATE     READ WRITE CKSUM