Need to test tar throwing an error

Solaris 10.

I am trying to test a fix to a purchased application. Previously the
application did not correctly handle the error from tar when creating a
tarball where an input file was > 8 GB. The application has been patched to
use the E option for tar (cEf), so it will no longer get this error. That
piece is easy to test.

However, I also want to test that the application will correctly process an
error when tar returns one. Since I can't use the file > 8 GB, I am now
looking for another way to get tar to throw an error when creating a tarball.
Suggestions?

Jim Ritterbusch
Database Administrator
GE Capital
83 Wooster Heights Rd
Danbury, CT 06810
Ph:  203.546.4370