HP 3000 Manuals

System Startup, Configuration, and Shutdown Reference Manual

Series 920, 922, 932, 948, 958, 925, 935, 949 CIO Systems 

You can configure these systems with HP-IB, HP-FL and some SCSI
interfaces.

Three or four levels of addressing are required:  a channel adapter
module number (or interface slot number), the device adapter address the
device address and possibly a unit address.


NOTE  The operating system will not boot from a CIO SCSI device.


Channel Adapter 

The first address level is the channel adapter module number.  For
example, to configure a channel adapter number of 4 you would enter:

     APATH 4,ID=nnnnn 

where nnnnn is a channel adapter module identifier such as HP19744A,
HPA1101A or HPA1741A.

Device Adapter 

To configure a device adapter (with an address of 3 for example) to the
channel adapter module enter:

     APATH PATH 4.3,ID=nnnn 

where nnnnn is a device adapter identifier such as HP27113A, HP28616A or
HP28642A.

HP-FL/HP-IB Devices 

To configure a device (with an address of 1 for example) to the device
adapter:

     ADEV PATH 4.3.1,ID=nnnnn 

where nnnnn is a device identifier such as HP7957A HP7937FL or HPC2474R.


NOTE  For reasons relating to backward compatibility, optical disk
      library (SCSI device) configuration for CIO does not utilize the
      following PSEUDO device identifier.  Instead, optical disk
      libraries are configured with a valid device identifier similar to
      HP-FL and HP-IB devices.  For more information refer to the
      installation documentation for the device.


SCSI Devices 

For a SCSI interface you must use the word PSEUDO as the device
identifier as follows:

     PATH 4.3.1,ID=PSEUDO 

Unit Identifier 

The fourth-level provides the unit address for multi-unit devices.  It is
required for SCSI devices regardless of whether they are single or
multi-unit.  It is required for HP-FL and HP-IB devices only when they
are configured as multi-unit devices.

To configure a unit address of 3, for example, on the device configured
above, enter:

     ADEV 4.3.1.3,ID=nnnnn 

where nnnnn is a valid device identifier.

If the device is not a multi-unit device or if a multi-unit device is
being configured as a single unit, the device unit address of 0 is used
to complete the address.  For example, to use the device configured above
as a single-unit device, enter the following:

     ADEV 4.3.1.0,ID=nnnnn 

where nnnnn is a valid device identifier.


NOTE  An expander bay is available for configuring additional devices on
      series 925, 935, 949.

MPE/iX 5.0 Documentation