Conference ssag::ask_ssag

6387.0. "Seven RZ28D-VW in a BA356-KC" by QBUS::E_BURKHALTER () Mon Feb 10 1997 15:14

    
    Another engineer worked the call below  and this is the symptons.
    
    PROBLEM:
              
    SCSI poweron resets/timouts on a 2100 4/200, kzpda, ba356-kb with (7)
    rz28d-v disks.  The errors appear when high activity exists on the
    3 system cluster in which this 2100 serves internal and the 7 external
    disks.
                      
    All componients were replaced, and parameters were adjusted on the
    KZPDA with no resolve.  Product engineering would not assist because 
    the KZPDA had not been qualified on the 4/200. 
    
    There are (7) RZ28D-VW in a BA356-KC
                                                    
                                                                                
    RESOLUTION:
                                                                       
                                                                                
    Remove (1) RZ28D-VW leaving (6) RZ28D-VW's and install a second             
    BA35X-HF power supply.                                                      
    
    This is from a Sales or StorageWorks article.
    
    o  The BA356-KC pedestal supports up to seven 16 bit 7200 RPMdisks.
    There are no slot restrictions. The BA356-KC has 15 percent more power
    than the BA350-KB.
    
    
    Question?
    Does the BA356-KC support 7 7200 RPM (RZ28D-VW) drives?
    If so is there a known problem or solution to the problem above?
    
    Ed Burkhalter
    CSC Atlanta 
                                                    

Not only did you ADD power, you REMOVED one bus load. You may still be looking
at a bus problem.

roger.