Moved from the Workstation forum to the Solaris 9 forum.
It is not a hardware issue.
While waiting for whatever response might appear, you could review the Solaris 9 man page for fdisk.
Additionally, you seem to post everything to the hardware forums, rather than spending a few moments to find the most appropriate location for your inquiries. Put some effort into that in the future. Off-topic posts might just get deleted instead of moved.