Conference netcad::hub_mgnt

1817.0. "Power consumption on Dechub900" by CX3PST::WSC493::K_CULP () Thu Dec 22 1994 15:30

Hi, 

    Had an interesting problem pop up wihtin the last few days.  The dechub 900
    was installed wiht 4 power supplies.  The customer attempted to add a ds900tm
    and was returned a status message that he could not add it because "not enough
    power to add module".  Is there any bug with version 3.1 that does not calculate 
    the total aggregate power of the dechub 900. Oh by the way the fix was to power 
    recycle the dechub 900 to calculate it's power consumption.

    
    [you went way over 80 columns, there - makes it hard to read]
    
    The easiest way for this to happen is to have a connector problem on
    the large lower backplane connector; some of those pins are used by the
    management module to 'read' the power requirements of a newly inserted
    module so that it can decide whether or not to grant it power.  If one
    or more pins are not connected properly it can get a reading way above
    the correct one and decide that there is not enough to meet the
    request.