## 14.2.7 Defining a Coupling Facility link with ICP CHPIDs 

The only way to define an ICP CHPID to another ICP CHPID is as a logical internal connection within the processor. 

The following are considerations for creating a CF link using ICP CHPIDs: 

GLYPH<SM590000> Each of the logical ICP links can only support one CHPID at each end of the link. 

GLYPH<SM590000> How many ICP CF links are required to provide enough coupling bandwidth. 

GLYPH<SM590000> Which z/OS LPARs on the same processors need access to the CF LPARs. 

GLYPH<SM590000> The example will be connecting two ICP CHPIDs (FC and FD) on the same processor. 

To define a Coupling Facility link with ICP CHPIDs, complete these steps: 

1. From the main HCD panel, select option 1.3. Processors . 

2. Enter s  next to the Processor that you want to create the first CF link from, and press Enter . 

3. Enter s  next to the CSS ID that has the ICP CHPID definition you want to create the first CF link from, and press Enter . 

4. Scroll through the Channel Path List until you find the first ICP CHPID you want to connect from, or in the Command Line enter L FC . In our example, we use FC . 

5. Enter f  next to the CHPID definition (Figure 14-28), and press Enter . 

Channel Path List Row 2 of 12 More: > Command ===> _______________________________________________ Scroll ===> CSR Select one or more channel paths, then press Enter. To add use F11. Processor ID . . . . : ARIES Configuration mode . : LPAR Channel Subsystem ID : 2 CHID+ Dyn Entry + / CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description _ 15 115 FC SHR __ __ __ No FC#0428 16Gb FICON Exp16S+ SX _ 80 00/1 CS5 SHR __ __ __ Y No FC#0176 ICA SR 2 Links _ 84 17/1 CS5 SHR __ __ __ Y No FC#0176 ICA SR 2 Links _ 88 1DC/1 CL5 SHR __ __ __ Y No FC#0433 Coupling Express LR _ 8C 23C/1 CL5 SHR __ __ __ Y No FC#0433 Coupling Express LR _ C3 1BC OSE SHR __ __ __ No FC#0446 OSA Express7S 1000Base-T _ C6 11C OSC SHR __ __ __ No FC#0446 OSA Express7S 1000Base-T _ E1 128 OSD SHR __ __ __ No FC#0445 OSA Express7s 10GbE SR _ F0 7E0 IQD SHR __ __ __ No IQD Internal Queued Direct Comms f  FC _____ ICP SHR __ __ __ N No ICP Internal Coupling Peer _ FD _____ ICP SHR __ __ __ N No ICP Internal Coupling Peer 

6. HCD prompts you to specify the second ICP CHPID you want to connect to. Scroll through the Channel Path List until you find the second ICP CHPID you want to connect to, or in the Command Line, enter L ED . In our example, we use FD . 

