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56 Chapter 4
Configuring and Using the 9900 Subsystem
Figure 4.2 shows a sample IOCP hardware definition for a 9900 configured with:
3990 ID.
Two (2) LPARs called PROD and TEST sharing 4 ExSA™ (ESCON
®
) channels connected via 2
ESCDs to the 9980.
Each switch has ports C0 and C1 attached to the 9980.
Four (4) LCUs with 256 LVIs per control unit.
Two (2) cu statements per logical control unit.
To protect data integrity due to multiple operating systems sharing these volumes, these
devices require FEATURE=SHARED.
CHPID PATH=(B0,B1),TYPE=CNC,PARTITION=(PROD,TEST,SHR),SWITCH=01
CHPID PATH=(B2,B3),TYPE=CNC,PARTITION=(PROD,TEST,SHR),SWITCH=02
CNTLUNIT CUNUMBR=A000,PATH=(B0,B1),UNITADD=((00,256)),LINK=(C0,C1),CUADD=0,UNIT=3990
CNTLUNIT CUNUMBR=A001,PATH=(B2,B3),UNITADD=((00,256)),LINK=(C0,C1),CUADD=0,UNIT=3990
CNTLUNIT CUNUMBR=A100,PATH=(B0,B1),UNITADD=((00,256)),LINK=(C0,C1),CUADD=1,UNIT=3990
CNTLUNIT CUNUMBR=A101,PATH=(B2,B3),UNITADD=((00,256)),LINK=(C0,C1),CUADD=1,UNIT=3990
CNTLUNIT CUNUMBR=A200,PATH=(B0,B1),UNITADD=((00,256)),LINK=(C0,C1),CUADD=2,UNIT=3990
CNTLUNIT CUNUMBR=A201,PATH=(B2,B3),UNITADD=((00,256)),LINK=(C0,C1),CUADD=2,UNIT=3990
CNTLUNIT CUNUMBR=A300,PATH=(B0,B1),UNITADD=((00,256)),LINK=(C0,C1),CUADD=3,UNIT=3990
CNTLUNIT CUNUMBR=A301,PATH=(B2,B3),UNITADD=((00,256)),LINK=(C0,C1),CUADD=3,UNIT=3990
IODEVICE ADDRESS=(A000,256),CUNUMBR=(A000,A001),UNIT=3390,FEATURE=SHARED
IODEVICE ADDRESS=(A100,256),CUNUMBR=(A100,A101),UNIT=3390,FEATURE=SHARED
IODEVICE ADDRESS=(A200,256),CUNUMBR=(A200,A201),UNIT=3390,FEATURE=SHARED
IODEVICE ADDRESS=(A300,256),CUNUMBR=(A300,A301),UNIT=3390,FEATURE=SHARED
Note: 4096 device addressing requires 16 CU images using CUADD=0 through CUADD=F in the CNTLUNIT statement.
Figure 4.2 IOCP Definition for 1024 LVIs (9900 connected to host CPU(s) via ESCD)