question on corrupt zpool

 Hello,
I am trying to figure out what could have happened and what could be done with this pool:

zdb shows

as_search

    version=22

    name='as_search'

    state=0

    txg=175099

    pool_guid=11120038135555730817

    hostid=2242917492

    hostname='nodename'

    vdev_children=1

    vdev_tree

        type='root'

        id=0

        guid=11120038135555730817

        children[0]

                type='disk'

                id=0

                guid=13001104063806155922

                path='/dev/dsk/c3t0017380001BF2131d0s0'

                devid='id1,ssd@x0017380001bf2131/a'

                phys_path='/scsi_vhci/ssd@g0017380001bf2131:a'

                whole_disk=1

                metaslab_array=23

                metaslab_shift=28

                ashift=9

                asize=51526238208

                is_log=0

                create_txg=4

    rewind_txg_ts=1297463435

bad config type 7 for seconds_of_rewind    <<<=== ???

    verify_data_errors=0

The errors we have seen :