Good day (morning, everning or night

).
We have Informix Dynamic Server Version 9.30.FC1 at HP-UX 11i.
We have a problem:
After start-up informix server (go to on-line mode) we have a critical error: "bad primary chunk 'ifx-chunk_100'". 'ifx-chunk_100' is a link for real charecter device. This device is empty (100% free space). We re-create this device (also VG with this device). Error is stay.
We probe start-up Informix server without real charecter device (also VG). Error stay.
We probe edit systables - we can`t modify this record (table syschunks), no access to delete

.
onstate -d show PD state to this chunk.
We can`t modify this state (to PO state), 'onspaces -s ... -p .../ifx-chunk_100 -o 0 -O' show error: "Error opening file .../ifx-chunk_100"
We can`t delete this chunk, 'onspaces -d ... -p .../ifx-chunk_100 -o 0' show error "ISAM error: Primary and Mirror chunks are bad"
dbaccess show another error -
"311: Cannot open system catalog (systables).
155: ISAM error: Primary and Mirror chunks are bad"
How to we have decide this problem?
AsKZ.