Visara FEP-4600 Planning Guide - Manual (Page 30)

Chapter 2. Support of PU 2.0 Platforms
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IOCDS Gen Requirements when VTAM Local Major Nodes are Used
Note that this section only applies to older platforms using the Luminex ESCON
interface configured for device type ‘3174’.
Each DSPU that is to be supported by the FEP-4600 requires that a single subchannel
address be assigned, to the host LPAR that owns the resource. If multiple DSPU
resources are owned by the same LPAR, then a single CNTLUNIT macro may be used to
define the multiple PU 2.0 resources by using a consecutive range of addresses. This
conserves CU resources in the FEP-4600. An example set of definitions for a single
DSPU (type 2.0) would look similar to the following:
RESOURCE PARTITION=((PROD1,1),(TEST,3))
CHPID PATH=(1F),TYPE=CNC,SWITCH=01,SHARED
CNTLUNIT CUNUMBR=1F00,PATH=1F,UNITADD=((00,1)),UNIT=3174,LINK=C5
IODEVICE CUNUMBR=1F00,ADDRESS=(680,1)UNIT=3174,UNITADD=00,PARTITION=(PROD1)
On a processor that supports Logical Subsystems (such as the z990), the definitions will
look slightly different. Here is the same set of definitions as would be seen for the z990.
RESOURCE PARTITION=(CSS(0),(PROD1,1),(TEST,3))
CHPID PATH=(CSS(0),1F),TYPE=CNC,SWITCH=01,SHARED,PCHID=160
CNTLUNIT CUNUMBR=1F00,PATH=(CSS(0),1F),UNITADD=((00,1)),UNIT=3174,LINK=(CSS(0),C5)
IODEVICE CUNUMBR=1F00,ADDRESS=(680,1)UNIT=3174,UNITADD=00,PARTITION=(CSS(0),PROD1)
A similar definition that supports 3 DSPU (type 2.0) controllers over separate links
controlled by the same LPAR might appear like this:
RESOURCE PARTITION=((PROD1,1),(TEST,3))
CHPID PATH=(1F),TYPE=CNC,SWITCH=01,SHARED
CNTLUNIT CUNUMBR=1F20,PATH=1F,UNITADD=((00,3)),UNIT=3174,LINK=C5
IODEVICE CUNUMBR=1F20,ADDRESS=(680,3)UNIT=3174,UNITADD=00,PARTITION=(PROD1)
Note the consecutive range of addresses used when sharing a single CNTLUNIT macro
for multiple PU2.0 platforms.