practice will avoid problems with duplicate device names if you later
decide to form a cluster.
C.3 Examining and Setting DSSI Device Parameters
The following instructions describe how to change DSSI parameters, using the
DUP driver utility. In the example procedures, the allocation class will be set
to 2, the devices for bus 0 (in the system) will be assigned new unit numbers
(to avoid the problem of duplicate unit numbers), and the system disk will be
assigned a new node name.
The following shows sample DSSI buses and bus node IDs for an expanded
system.
System
Expander
DSSI Cable
Bus 0
Bus 1
3 2 1
0
6 5 4
2 1 0
5
MLO-007177
Note
Your system need not have the maximum number of devices, as do the
examples in this appendix.
Programming Parameters for DSSI Devices C–5
