Hi,
I had similar problem, but found the apar dealing with it. If you're also
getting errors like
               ANR8302E I/O error on drive MT1.0.0.0 (MT1.0.0.0)
                       (OP=WRITE, Error Number=1117, CC=400, KEY=4D,
ASC=00,
                       ASCQ=02,
SENSE=70.00.4D.00.00.00.00.0E.00.00.00.00.00.0-
                       2.00.00.50.8D.00.00.00.00., Description=Physical
end of
                       media encountered).  Refer to Appendix D in the
                       'Messages' manual for recommended action.

look into apar  IC35508

My brgds

                Wieslaw