Conference ssag::ask_ssag

6401.0. "TSZ07 and KZPAA ?" by MAASUP::TURRO (Make it so number 1) Mon Feb 17 1997 18:28

    Customer has 2-2100a systems.Each rackmounted in the same cabinet and
    each with a KZPAA connected to its own TSZ07 .He says he sometimes has to
    power off a TSZ07 and when he does the (and im not sure of this)
    system either hangs or crashes. It will happen on either. So he asked
    me if he could get the PN for a "Y" cable to install on end of the KZPAA
    and terminate it. He wonders if this would cure this problem.
    The cable he has is a BN23G-02. So I guess if the cable is the solution
    should it be connected to the BN23G or a seperate one from KZPAA to
    TSZ07.
    
    	I wounder if its a termination problem or does he need to get the
    cable. His config as far as I know is each 2100a has a KZPAA with only
    the TSZ07 attached . Each tape drive is terminated  on each system.
    
    	Any ideas or suggestions would be greatly appreciated.
    
    	Mike Turro
    	MCS Baltimore
    

    Why does he need to power it off? Is there a problem, or does he move
    drives around. And where is termination for the bus. It should be at
    the KZPAA and at the other end. Is it on the Tape Drive? What type of
    crash does he get? A 'Y' cable is really to provide termination 'off'
    a controller so that the scsi bus can be removed from one controller
    in a shared SCSI bus while not affecting the other controllers. A 'Y'
    cable at the tape drive end (if the tape drive's out port is
    terminated) would allow the tape drive to be removed from the bus
    and still allow the bus to be terminated. We don't support such hot
    swaps while the bus is active. So is he removing power and
    disconnecting the cable?
    
           I ask too many questions, don't I? 
    
                         Mark d.