1.6.3 Setting the MSCP Unit Number
The ISE is set at the factory to read the DSSI node ID as the MSCP unit
number. Unit numbers for all DSSI devices connected to a system’s associated
DSSI buses must be unique. When more than one bus is being used, and
your system is using a nonzero allocation class, you need to assign new unit
numbers for devices on all but one of the DSSI buses.
When assigning a different unit number, you must also set the FORCEUNI
parameter to 0. This allows the unit number you have set to be used. The
factory setting for FORCEUNI is 1, forcing the DSSI node ID to be used as the
MSCP unit number.
The following example shows how to change the MSCP unit number:
PARAMS> sh unitnum
Parameter
Current
Default
Type
Radix
--------- ------------
-------------
---------
-----
UNITNUM
5
0
Word
Dec
U
PARAMS> set unitnum 21
PARAMS> sh unitnum
Parameter
Current
Default
Type
Radix
--------- ------------
-------------
---------
-----
UNITNUM
21
0
Word
Dec
U
PARAMS> sh forceuni
Parameter
Current
Default
Type
Radix
--------- ------------
-------------
---------
-----
FORCEUNI
1
1
Boolean
0/1
U
PARAMS> set forceuni 0
PARAMS> sh forceuni
Parameter
Current
Default
Type
Radix
--------- ------------
-------------
---------
-----
FORCEUNI
0
1
Boolean
0/1
U
PARAMS> write
1–30 EF- and RZ-Series Integrated Storage Elements