Dssi Device Parameters: Definitions And Function - DEC 4000 AXP Service Manual

pua0.0.0.0.0 RF0000
pua0.1.0.0.0 RF0001
pua0.2.0.0.0 RF0002
pua0.3.0.0.0 RF0003
>>>
>>> cdp -i dua13
pua13.3.0.0.0:
Node Name [RF0003]? ALPHA13
Allocation Class [2]? 1
Unit Number [13]? 5
>>>
6.4.3 DSSI Device Parameters: Definitions and Function
Five principal parameters are associated with each DSSI device:
• Bus node ID
• ALLCLASS
• UNITNUM
• NODENAME
• SYSTEMID
ALLCLASS, NODENAME, and UNITNUM are examined and modified
using the cdp command (Section 6.4.2).
SYSTEMID is examined and modified using the console-based Diagnostic
Utility Program (DUP) server utility.
The bus node ID is physically determined by the numbered bus node ID
plug that inserts into the front panel of the storage compartment.
A brief description of each parameter follows:
Bus Node ID
The bus node ID parameter is provided by the bus node ID plug on the front
panel of the storage compartment. Each DSSI bus can support up to eight nodes,
(bus nodes 0–7). Each DSSI adapter and each device count as a node. Hence, in
a single-system configuration, a DSSI bus can support up to seven devices, bus
nodes 0–6 (with node 7 reserved for the adapter).
6–36 System Configuration and Setup
0411214901371 2 10 $2$DIA10
0411214901506 2 11 $2$DIA11
041122A001625 2 12 $2$DIA12
0411214901286 2 13 $2$DIA13
Note