Problem with Cold Recovery

We are attempting to recover some data we lost from a week old ontape archive by doing a full informix cold recovery. There are two dbspaces with two chunks in each space. When we do the ontape -r the first dspace recovers just fine, but when informix gets to the second one it chokes. We get a message that says "unable to open device dbspace2". This is not a direct quote. We searched the log and found this message. rsphr.c, line 396, thread 32, proc id 3017, Aborting physical restore of ROOT dbspace, Aborted by CLIENT. Needless to say we still need the data and can't seem to recover all of our dbspaces. Since oninit can still access dbspace2, we tried a warm recovery of dbspace2. That resulted in message which said Memory Fault. From my experience that means ontape core dumped. Not very useful. Has anyone encountered a similar problem? Do you have a solution? Is there a repository of problems I can search? I have tried tech notes and found nothing. John Wells, First Pacific Corporation, 503-315-7233