You should be able to create a PRIMARY STGPOOL named TAPEPOOL and a
COPY STGPOOL named COPYPOOL with both of them having a sequential access
(tape) DEVICE CLASS such as DLT or LTO.  Both stgpools can be in the
same library.  On the stgpool TAPEPOOL definition you set the
COPYSTGPOOLS parameter to COPYPOOL.  Then when your client backs up to
TAPEPOOL, TSM will simultaneously write to COPYPOOL.  Of course having
an adequate number of tape drives is required.


H. Milton Johnson