I hope I have provided enough detail to describe my problem.
I did assume the reader has fairly detailed knowledge of
HACMP and EDT.

Hardware/Software Environment:
        2 IBM p690s
        AIX 5.1 with ML03
        HACMP 4.4.1
        TSM 5.1.something(TBD) (on another machine)
        TSM Storage Agent
        TDP
        EDT 6.4.1 (Gresham Software)
        SAN
                2 McData 6064 switches
                6 McData ES-1000 switches
                1 STK Silo (9310)
                6 STK 9980 Tape Drives
                1 HDS 9980 (using Sanergy would solve
                                this problem but I would like the
                                option of using tapes Lanfree)
        Various other software

Legend:
        hnodeX == HACMP Node X (same as machine for this discussion)
        hresX  == HACMP Resource X

HACMP Configuration (simplified but hopefully adequate to describe problem):
        1 Concurrent Resource (hres3) running Oracle 9.2/RAC.
        1 Cascading Resource (hres1) normally on hnode1.
          Can fail over to hnode2 using IPAT.
        1 Cascading Resource (hres2) normally on hnode2.
          Can fail over to hnode1 using IPAT.

        In summary: each machine can be running one, two or all three
        HACMP resources.

        Each cascading resource has a set of disks
        which moves with the resource and therefore must be backed up
        from either machine.

        The concurrent resource has raw devices
        accessible to both machines which do not "move". Using TDP, they
        can be backed up from either machine.

        Each hnodeX has data (e.g., rootvg and JFS type data belonging to
        the concurrent resource) which stays with the machine
        and must be backed up.

Problem:
        How do I define TSM/EDT? (We currently use EDT to allow us to
        do Lanfree so we know the basics.)

        I need to be able to move hres1 and hres2 between hnodes
        without worrying about tapes being dismounted. We currently
        set CLIENTID to hostname. I do not believe that would work
        in this environment because
                1) hres1 has tape(s) mounted using LANFREE
                2) hres3 has tape(s) mounted using LANFREE
                3) hres1 fails over from hnode1 to hnode2 for some reason
                4) the tape(s) being used by hres1 would not be dismounted

        I then thought of using hresX as the CLIENTID. I thought of separate
        TSM Storage Agents for each hresX (possible?). I thought of separate
        stgpools for each hresX pointing to separate
        libraries so I could use hresX as the EDT CLIENTID (not very
        appealing! but I think it would work).

        Any help in this matter would be GREATLY APPRECIATED!