Appendix D. Shared Memory Communications 497
Example D-3 shows a sample IOCP FUNCTION configuration that defines ISM adapters
shared between LPSRs and multiple VLANs on the same CPC as shown in Figure D-18.
Figure D-18 Multiple LPARs connected through multiple VLANs
Workloads can be logically isolated on separate ISM VCHIDs. Alternatively, workloads can be
isolated by exploiting VLANs. The ISM VLAN definitions are inherited from the associated IP
network (OSA or HiperSockets).
Example D-3 Sample IOCP Function
FUNCTION FID=1017,VCHID=7E1,VF=1,PART=((LPAR3),(LPAR3,LPAR4)),PNETID=(PNETA),TYPE=ISM
FUNCTION FID=1018,VCHID=7E1,VF=2,PART=((LPAR4),(LPAR3,LPAR4)),PNETID=(PNETA),TYPE=ISM
FUNCTION FID=1019,VCHID=7E1,VF=3,PART=((LPAR5),(LPAR4,LPAR5)),PNETID=(PNETA),TYPE=ISM
FUNCTION FID=1020,VCHID=7E1,VF=4,PART=((LPAR6),(LPAR5,LPAR6)),PNETID=(PNETA),TYPE=ISM
FUNCTION FID=1021,VCHID=7E1,VF=5,PART=((LPARn),(LPAR6,LPARn)),PNETID=(PNETA),TYPE=ISM
FUNCTION FID=1022,VCHID=7E2,VF=1,PART=((LPAR1),(LPAR1,LPAR2)),PNETID=(PNETB),TYPE=ISM
FUNCTION FID=1023,VCHID=7E2,VF=2,PART=((LPAR2),(LPAR1,LPAR2)),PNETID=(PNETB),TYPE=ISM
FUNCTION FID=1024,VCHID=7E2,VF=3,PART=((LPARn),(LPAR1,LPARn)),PNETID=(PNETB),TYPE=ISM
Note: On the IOCDS statement, the VCHID is defined as 7E1. In Figure D-17 on
page 496, the ISM network “PNET 1” is referenced by the IOCDS VCHID statement. ISM
(just like IQD) doesn’t use physical cards or card slots (PCHID), but only logical (firmware)
instances that are defined as VCHIDs in IOCDS.
This OS has access to 2
unique ISM networks
(VCHIDs); requires 2
unique ISM FIDs (VFs)
. . .
LPAR 1 LPAR 3LPAR 2 LPAR 5LPAR 4 LPAR n
PR/SM
LPAR 6
ISM Network PNet A (VCHID 7E1)
ISM Network PNet B (VCHID 7E2)
VF=1
VF=4
VF=2
VF=1
VF=3
VF=3
ISM
FID 1022
ISM
FID 1023
ISM
FID 1017
ISM
FID
1021
VLAN 1
VLAN 2
VLAN 7
VLAN 1
VF=2
VF=5
This OS (LP2 & LP5) have
access to 2 VLANs on the
same ISM network; requires a
single ISM FID (VF)
System z13 or z13s (Driver 27)
ISM
FID 1018
ISM
FID 1019
ISM
FID 1020
ISM
FID
1022