HP 3000 Manuals

Performing System Management Tasks

Determining Hardware Paths 

The SPU on Series 925 through Series 949 systems, Series 958 systems, and
Series 950 through Series 980 systems consists of the processor, memory,
and I/O. Information is communicated through buses.  A bus is a path over
which information is transferred from any of several sources to any of
several destinations.  This is how data gets from the SPU to devices, and
from devices to the SPU.

When you configure the system, you need to know hardware paths.  When you
add a peripheral to the system, such as a new disk drive or printer, you
must supply a hardware path for the configuration.  Hardware paths are a
map used by the system when it configures the hardware.  They allow the
system to find a specific peripheral when only the LDEV or the device
class is specified.

To recognize hardware path components 

The components that make up the hardware path are shown in Figure 12-14
.  A path for Series 925 through Series 949 systems and Series 958
systems consists of module slot number.device adapter.device.  A path for
Series 950 through Series 980 systems consists of bus converter/module 
slot number.device adapter.device.


          Figure 12-14.  Hardware Path Components 

The components are described here:

   *   Bus converter number (Series 947 through Series 967 systems only)
       -

   *   Bus converter number (Series 950 through Series 980 systems only)
       - For midbus 0 use 2/ and for midbus 1 use 6/.

   *   Channel adapter module number - Four times the channel adapter
       card slot number (Series 925 systems and Series 950 through Series
       980 systems).  On the Series 935 system, the channel adapter card
       slot number is fixed at nine, so the channel adapter module number
       is four times nine, or 36.

   *   CIO device adapter slot number - The actual slot the device
       adapter card is in.

   *   Port or HP-IB/HP-FL address - The HP-IB/HP-FL address is set on
       the device itself.

MPE/iX 5.0 Documentation