Adding coupling connectivity
This chapter describes the steps to define CS5, CL5, and ICP CHPIDs, and Coupling Facility links between these CHPID types.
It also provides a list of these potential configuration items and a short description of how to do each of them by using hardware configuration definition (HCD).
 
Note: Not all of the configuration items that are described in this chapter are necessarily required for your installation. Also, the examples that are presented are not intended to be exhaustive.
This chapter includes the following topics:
14.1 Defining more I/O using HCD
When defining new I/O components in an IODF, certain definitions, such as OSCONFIGs, partitions, FICON Switches, Control Units, and Devices must be made up front. After the following definitions are made, the connections can be made:
•Defining Coupling Facility LPARs in a CSS
•Defining CS5 CHPIDs
•Defining a Coupling Facility link with CS5 CHPIDs
•Defining CL5 CHPIDs
•Defining a Coupling Facility link with CL5 CHPIDs
•Defining ICP CHPIDs
•Defining a Coupling Facility link with ICP CHPIDs
The I/O definitions that are described next use HCD to demonstrate the examples. The examples continue by using the example that was created in Chapter 5, “Production IODF and setting up the CPC” on page 85 (for example, ITSO.IODF78.WORK).
14.2 Coupling Facility LPARs, CS5, CL5, and ICP CHPIDs
This section covers defining Coupling Facility LPARs and the CS5, CL5, and ICP CHPID type definitions.
14.2.1 Defining Coupling Facility LPARs in a CSS
A new (unreserved) partition includes the following considerations:
•Partition name
•Number
•Usage
•Description
•To add CHPIDs to a partition, they first must be defined to the processor
•Renaming a partition is a two-step process:
a. It must be redefined as reserved (Partition name = *) and the IODF activated on the processor.
b. The partition must be redefined to the new name and the IODF activated on the processor.
To change a reserved partition to an active partition in a CSS, complete the following steps:
1. From the main HCD panel, select option 1.3. Processors.
2. Enter s next to the Processor that you want to add a partition to, and press Enter.
3. Enter p next to the CSS ID that you want to add a partition to, and press Enter.
4. Enter c next to the Reserved Partition that you want to unreserve (we use ID A for this example), and press Enter.
5. Complete the following updates (see Figure 14-1) and press Enter:
 – Update Partition Name to MUSCA2A (a naming standard based on CSS=2, Partition =A).
 – Review Partition usage and change if required. We use CF in this example.
 – Update Description to MUSCA2A test CF partition.
*----------------------------- Partition List -----------------------------*
| Goto Backup Query Help |
| ----------------------------------------------------------------------- |
| |
| Command ===> ________________________________________ Scroll ===> CSR |
| |
| Select one or more partitions, then press Enter. To add, use F11. |
| |
| Processor *-------------- Change Partition Definition ---------------* |
| Configura | | |
| Channel S | | |
| | Specify or revise the following values. | |
| / Partiti | | |
| c MUSCA2A | Partition name . . . MUSCA2A | |
| _ * | Partition number . . A (same as MIF image ID) | |
| _ * | Partition usage . . CF + | |
| _ * | UID uniqueness . . . N (Y/N) | |
| _ * | | |
| _ * | Description . . . . MUSCA2A test CF partition | |
| _ * | | |
| _ * | | |
| _ * | | |
| _ * | | |
*---------- *----------------------------------------------------------* --*
Figure 14-1 Processors: Change Partition Definition, Coupling Facility
14.2.2 Defining CS5 CHPIDs
When defining a CS5 CHPID to create a Coupling Facility link between a Coupling Facility LPAR and a z/OS LPAR, first determine which z/OS LPARs require access to which CF LPAR, how many CF links are required, and to how many different physical processors.
CS5 coupling facility CHPIDs are defined by using FC 0172 (ICA SR 2 Links) cards that are installed on the CPC drawer as opposed to in the PCIe+ I/O drawer.
The ICA SR card has two ports (Port 1 and Port 2) that provide two physical connections to another ICA SR card on the same or different processor.
Each of the ports can have up to four CHPIDs defined to these ports.
A new CS5 CHPID includes the following considerations:
•Channel path ID (CHPID)
•Channel path type
•Operational mode
•Description
•Adapter ID (AID)
•Adapter Port
•Partition access list
•For performance and redundancy, how many AID cards are installed in the processor and to what PCIe slot on what CPC drawer (see the PCHID/CHID report for a list of installed hardware)
To define a new CS5 CHPID and provide access to a partition, complete the following steps:
1. From the main HCD panel, select option 1.3. Processors.
2. Enter s next to the Processor that you want to add a CHPID to, and press Enter.
3. Enter s next to the CSS ID that you want to add a CHPID to, and press Enter.
4. In the command line, enter add (see Figure 14-2) to add a CHPID.
*---------------------------- Add Channel Path -----------------------------*
| |
| |
| Specify or revise the following values. |
| |
| Processor ID . . . . : MUSCA Musca |
| Configuration mode . : LPAR |
| Channel Subsystem ID : 2 |
| |
| Channel path ID . . . . E0 + Channel ID ___ + |
| Number of CHPIDs . . . . 1 |
| Channel path type . . . CS5 + |
| Operation mode . . . . . SPAN + |
| Managed . . . . . . . . No (Yes or No) I/O Cluster ________ + |
| Description . . . . . . FC#0172 ICA SR 2 Links_________ |
| |
| Specify the following values only if connected to a switch: |
| Dynamic entry switch ID __ + (00 - FF) |
| Entry switch ID . . . . __ + |
| Entry port . . . . . . . __ + |
| |
| |
*---------------------------------------------------------------------------*
Figure 14-2 Processors: Add Channel Path, CS5
5. Complete the following updates and press Enter:
 – Channel path ID to E0
 – Channel path type to CS5
 – Operational mode to SPAN
 – Description to the description that you want
 
6. HCD prompts you to specify the adapter and port of the HCA attributes. Complete the following updates (see Figure 14-3) and press Enter:
 – Adapter of the HCA to 12
 – Port on the HCA to 1
*------------------ Specify HCA Attributes -------------------*
| |
| |
| Specify or revise the values below. |
| |
| Adapter ID of the HCA . . 12 + |
| Port on the HCA . . . . . 1 + |
| |
| |
| |
| |
*-------------------------------------------------------------*
Figure 14-3 Processors: Specify HCA Attributes, CS5
7. HCD prompts you to select to which partitions the CHPID should have access. Enter a forward slash ‘/’ next to the wanted partitions (see Figure 14-4), and press Enter.
*--------------------------- Define Access List ----------------------------*
| Row 22 of 31 |
| Command ===> _________________________________________ Scroll ===> CSR |
| |
| Select one or more partitions for inclusion in the access list. |
| |
| Channel subsystem ID : 2 |
| Channel path ID . . : E0 Channel path type . : CS5 |
| Operation mode . . . : SPAN Number of CHPIDs . . : 1 |
| |
| / CSS ID Partition Name Number Usage Description |
| / 1 MUSCA11 1 OS |
| _ 1 MUSCA12 2 OS |
| _ 1 MUSCA13 3 OS |
| _ 1 MUSCA14 4 OS |
| _ 1 MUSCA15 5 OS |
| _ 1 MUSCA16 6 OS |
| _ 1 MUSCA17 7 OS |
| _ 1 MUSCA18 8 OS |
| _ 1 MUSCA19 9 OS |
| / 2 MUSCA2A A CF MUSCA2A test CF partition |
| **************************** Bottom of data ***************************** |
| |
*---------------------------------------------------------------------------*
Figure 14-4 Processors: Define Access List, CS5
8. Because more partitions than the selected two are defined, the next panel Define Candidate List appears. For this example, we do not add any partitions in the access list. Therefore, press Enter. HCD now returns to the Channel Path List, which shows you the CHPID that was defined (see Figure 14-5).
                             Channel Path List Row 1 of 1 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ N No FC#0172 ICA SR 2 Links
Figure 14-5 Processors: Channel Path List, CS5
9. Define another CS5 CHPID as E4 to the same LPARs as AID=16, Port=1 (see Figure 14-6).
                             Channel Path List Row 1 of 2 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ N No  FC#0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ N No FC#0172 ICA SR 2 Links
Figure 14-6 Processors: Channel Path List, CS5
14.2.3 Defining a Coupling Facility link with CS5 CHPIDs
The only way to define a CS5 CHPID to another CS5 CHPID is direct connected.
Creating a CF link by using CS5 CHPIDs includes the following considerations:
•The ICA SR connection is a physical cable between two FC 0172 cards on the same or different processors.
•Up to four logical CHPIDs per port can be defined over that physical connection.
•How many CS5 CF links are required to provide enough primary and secondary links and coupling bandwidth.
•Which z/OS LPARs on the same or different processors need access to the CF LPARs.
•CF links also provide Server Time Protocol (STP) connectivity for a Coordinated Time Network (CTN) between processors and a sysplex.
•Our example connects two CS5 CHPIDs (E0 and E4) on the same processor.
To define a Coupling Facility link with CS5 CHPIDs, complete the following 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 CS5 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 CS5 CHPID you want to connect from, or in the command line, enter L E0. In our example, we use E0.
5. Enter f next to the CHPID definition (see Figure 14-7), and press Enter.
                             Channel Path List Row 1 of 2 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
f E0 12/1 CS5 SPAN __ __ __ N No FC#0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ N No FC#0172 ICA SR 2 Links
Figure 14-7 Processors: CF Channel Path Connectivity List, CS5
6. In the next panel, HCD prompts you to specify the second CS5 CHPID to which you want to connect. Scroll through the Channel Path List until you find the second CS5 CHPID you want to connect to, or in the command line enter L E4. In our example, we use E4.
7. Enter p next to the CHPID definition (see Figure 14-8), and press Enter.
                    CF Channel Path Connectivity List Row 1 of
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ E0 12/1 Y CS5 SPAN N
p E4 16/1 Y CS5 SPAN N
Figure 14-8 Processors: CF Channel Path Connectivity List, CS5
8. HCD prompts you to specify to which CF channel path to connect. Complete the following updates (see Figure 14-9) and press Enter:
 – Destination processor ID to MUSCA
 – Destination channel subsystem ID to 2
 – Destination channel path ID to E0
*---------------- Connect to CF Channel Path -----------------*
| |
| |
| Specify the following values. |
| |
| Source processor ID . . . . . : MUSCA |
| Source channel subsystem ID . : 2 |
| Source channel path ID . . . . : E4 |
| Source channel path type . . . : CS5 |
| |
| Destination processor ID . . . . . . MUSCA___ + |
| Destination channel subsystem ID . . 2 + |
| Destination channel path ID . . . . E0 + |
| |
| Timing-only link . . . . . . . . . . No |
| |
| |
*-------------------------------------------------------------*
Figure 14-9 Processors: Connect to CF Channel Path, CS5
9. HCD checks available Control Unit numbers and Device addresses starting at FFFF and works backwards to provide suggestions. These suggestions can be overridden or accepted. We accept the suggestions for the second CS5 CHPID (see Figure 14-10) and press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : E4 Operation mode . . : SPAN |
| Channel path type . . . . : CS5 |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFDC |
| Number of devices . . . . . 8 |
| |
| |
*--------------------------------------------------------------------*
Figure 14-10 Processors: Add CF Control Unit and Devices, CS5
10. HCD provides suggested Control Unit numbers and Device addresses for the first CS5 CHPID (see Figure 14-11). The Control unit number is the same and that eight devices were allocated. Press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : E0 Operation mode . . : SPAN |
| Channel path type . . . . : CS5 |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFD4 |
| Number of devices . . . . . 8 |
| |
| |
| |
| |
*--------------------------------------------------------------------*
Figure 14-11 Processors: Add CF Control Unit and Devices, CS5
HCD provides a summary of the Source and Destination CF Connectivity List (see Figure 14-12).
                    CF Channel Path Connectivity List Row 1 of
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ E0 12/1 Y CS5 SPAN N MUSCA.2 E4 16/1 Y CS5 SPAN CFP 8
_ E4 16/1 Y CS5 SPAN N MUSCA.2 E0 12/1 Y CS5 SPAN CFP 8
Figure 14-12 Processors: Add CF Channel Path Connectivity List, CS5
14.2.4 Defining CL5 CHPIDs
When defining a CL5 CHPID to create a Coupling Facility link between a Coupling Facility LPAR and a z/OS LPAR, determine which z/OS LPARs require access to which CF LPAR, how many CF links are required, and to how many different physical processors.
CL5 coupling facility CHPIDs are defined by using FC 0433 (Coupling Express LR) cards, which are installed in the PCIe+ I/O drawer instead of on the CPC drawer.
The Coupling Express LR card has two ports (Port 1 and Port 2), which provide two physical connections between another Coupling Express LR card on the same or different processor.
Each of the ports can have up to four CHPIDs defined.
A new CL5 CHPID includes the following considerations:
•Channel path ID (CHPID)
•Channel ID (CHID)
•Channel path type
•Operational mode
•Description
•Partition access list
•For performance and redundancy, how many CL5 cards are installed in the processor and to what PCIe slot on what CPC drawer (see the PCHID/CHID report for a list of installed hardware)
To define a new CL5 CHPID and provide access to a partition, complete the following steps:
1. From the main HCD panel, select option 1.3. Processors.
2. Enter s next to the Processor that you want to add a CHPID to, and press Enter.
3. Enter s next to the CSS ID that you want to add a CHPID to, and press Enter.
4. In the command line, enter add (see Figure 14-13) to add a CHPID.
*---------------------------- Add Channel Path -----------------------------*
| |
| |
| Specify or revise the following values. |
| |
| Processor ID . . . . : MUSCA Musca |
| Configuration mode . : LPAR |
| Channel Subsystem ID : 2 |
| |
| Channel path ID . . . . E8 + Channel ID ___ + |
| Number of CHPIDs . . . . 1 |
| Channel path type . . . CL5 + |
| Operation mode . . . . . SPAN + |
| Managed . . . . . . . . No (Yes or No) I/O Cluster ________ + |
| Description . . . . . . FC#0433 Coupling Express LR ____ |
| |
| Specify the following values only if connected to a switch: |
| Dynamic entry switch ID __ + (00 - FF) |
| Entry switch ID . . . . __ + |
| Entry port . . . . . . . __ + |
| |
| |
*---------------------------------------------------------------------------*
Figure 14-13 Processors: Add Channel Path, CL5
5. Complete the following updates and press Enter:
 – Channel path ID to E8
 – Channel ID to 124
 – Channel path type to CL5
 – Operational mode to SPAN
 – Description to the description that you want
6. HCD prompts you to specify the coupling PCHID/Port attributes. Update Coupling Port to 1 (see Figure 14-14) and press Enter.
*----------- Specify Coupling Pchid/Port Attribute -----------*
| |
| |
| Specify or revise the values below. |
| |
| Physical channel ID . . . 124 |
| Coupling port . . . . . . 1 + |
| |
| |
*-------------------------------------------------------------*
Figure 14-14 Processors: Specify Coupling Pchid/Port Attributes, CL5
7. HCD prompts you to select to which partitions the CHPID can access. Enter a forward slash ‘/’ next to the partitions that you want (see Figure 14-15), and press Enter.
*--------------------------- Define Access List ----------------------------*
| Row 22 of 31 |
| Command ===> _________________________________________ Scroll ===> CSR |
| |
| Select one or more partitions for inclusion in the access list. |
| |
| Channel subsystem ID : 2 |
| Channel path ID . . : E8 Channel path type . : CL5 |
| Operation mode . . . : SPAN Number of CHPIDs . . : 1 |
| |
| / CSS ID Partition Name Number Usage Description |
| / 1 MUSCA11 1 OS |
| _ 1 MUSCA12 2 OS |
| _ 1 MUSCA13 3 OS |
| _ 1 MUSCA14 4 OS |
| _ 1 MUSCA15 5 OS |
| _ 1 MUSCA16 6 OS |
| _ 1 MUSCA17 7 OS |
| _ 1 MUSCA18 8 OS |
| _ 1 MUSCA19 9 OS |
| / 2 MUSCA2A A CF MUSCA2A test CF partition |
| **************************** Bottom of data ***************************** |
| |
*---------------------------------------------------------------------------*
Figure 14-15 Processors: Define Access List, CL5
8. Because more partitions than the selected two are defined, the next panel Define Candidate List appears. For this example, we do not add any partitions in the access list. Therefore, press Enter. HCD returns to the Channel Path List, which shows you the CHPID that was defined (see Figure 14-16 on page 358).
                             Channel Path List Row 1 of 3 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ Y No FC#0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E8 124/1 CL5 SPAN __ __ __ N No FC 0433 Coupling Express LR
Figure 14-16 Processors: Channel Path List, CL5
9. Define another CL5 CHPID as ED to the same LPARs as CHID=144, Port=1 (see Figure 14-17).
                             Channel Path List Row 1 of 4 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E8 124/1 CL5 SPAN __ __ __ N No FC 0433 Coupling Express LR
_ ED 144/2 CL5 SPAN __ __ __ N No FC 0433 Coupling Express LR
Figure 14-17 Processors: Channel Path List, CL5
14.2.5 Defining a Coupling Facility link with CL5 CHPIDs
The only way to define a CL5 CHPID to another CL5 CHPID is direct connected.
Creating a CF link by using CL5 CHPIDs includes the following considerations:
•The Coupling Express LR connection is a physical cable between two FC 0433 cards on the same or different processors.
•Up to four logical CHPIDs per port can be defined over that physical connection.
•How many CL5 CF links are required to provide enough primary and secondary links and coupling bandwidth.
•Which z/OS LPARs on the same or different processors need access to the CF LPARs.
•CF links also provide STP connectivity for a CTN between processors and a sysplex.
•Our example connects two CL5 CHPIDs (E8 and ED) on the same processor.
To define a Coupling Facility link with CL5 CHPIDs, complete the following 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 includes the CL5 CHPID definition for which you want to create the first CF link, and press Enter.
4. Scroll through the Channel Path List until you find the first CL5 CHPID you want to connect from, or in the command line, enter L E8. In our example, we use E8.
5. Enter f next to the CHPID definition (see Figure 14-18) and press Enter.
                             Channel Path List Row 3 of 4 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
f E8 124/1 CL5 SPAN __ __ __ N No FC 0433 Coupling Express LR
_ ED 144/2 CL5 SPAN __ __ __ N No FC 0433 Coupling Express LR
Figure 14-18 Processors: CF Channel Path Connectivity List, CL5
6. HCD prompts you to specify the second CL5 CHPID to which you want to connect. Scroll through the Channel Path List until you find the second CL5 CHPID you want to connect to, or in the command line enter L ED. In our example, we use ED.
7. Enter p next to the CHPID definition (see Figure 14-19) and press Enter.
                    CF Channel Path Connectivity List Row 3 of
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ E8 124/1 Y CL5 SPAN N
p ED 144/2 Y CL5 SPAN N
Figure 14-19 Processors: CF Channel Path Connectivity List, CL5
8. HCD prompts you to specify to which CF channel path to connect. Complete the following updates (see Figure 14-20) and press Enter:
 – Destination processor ID to MUSCA
 – Destination channel subsystem ID to 2
 – Destination channel path ID to E8
*---------------- Connect to CF Channel Path -----------------*
| |
| |
| Specify the following values. |
| |
| Source processor ID . . . . . : MUSCA |
| Source channel subsystem ID . : 2 |
| Source channel path ID . . . . : ED |
| Source channel path type . . . : CL5 |
| |
| Destination processor ID . . . . . . MUSCA___ + |
| Destination channel subsystem ID . . 2 + |
| Destination channel path ID . . . . E8 + |
| |
| Timing-only link . . . . . . . . . . No |
| |
| |
*-------------------------------------------------------------*
Figure 14-20 Processors: Connect to CF Channel Path, CL5
9. HCD checks available Control Unit numbers and Device addresses starting at FFFF and works backwards to provide suggestions. These suggestions can be overridden or accepted. We accept the suggestions for the second CL5 CHPID (see Figure 14-21) and press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : ED Operation mode . . : SPAN |
| Channel path type . . . . : CL5 |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFCC |
| Number of devices . . . . . 8 |
| |
| |
*--------------------------------------------------------------------*
Figure 14-21 Processors: Add CF Control Unit and Devices, CL5
10. HCD provides suggested Control Unit numbers and Device addresses for the first CL5 CHPID (see Figure 14-22). The Control unit number is the same and that eight devices were allocated. Press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : E8 Operation mode . . : SPAN |
| Channel path type . . . . : CL5 |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFC4 |
| Number of devices . . . . . 8 |
| |
| |
*--------------------------------------------------------------------*
Figure 14-22 Processors: Add CF Control Unit and Devices, CL5
HCD provides a summary of the Source and Destination CF Connectivity List (see Figure 14-23).
                    CF Channel Path Connectivity List Row 3 of 4
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ E8 124/1 Y CL5 SPAN N MUSCA.2 ED 144/2 Y CL5 SPAN CFP 8
_ ED 144/2 Y CL5 SPAN N MUSCA.2 E8 124/1 Y CL5 SPAN CFP 8
Figure 14-23 Processors: Add CF Channel Path Connectivity List, CL5
14.2.6 Defining ICP CHPIDs
When defining an ICP CHPID to create a Coupling Facility link between a Coupling Facility LPAR and a z/OS LPAR, determine which z/OS LPARs require access to which CF LPAR, and how many CF links are required within the same physical processor.
ICP coupling facility CHPIDs are defined logically and internally to the processor and require no installed hardware. However, the maximum number of ICP CHPIDS that can be defined in a processor is limited to 32.
Each of the logical ICP links can support only one CHPID at each end of the link. However, the CHPIDS can be spanned across multiple CSSs.
A new ICP CHPID includes the following considerations:
•Channel path ID (CHPID)
•Channel path type
•Operational mode
•Description
•Partition access list
To define a new ICP CHPID and provide access to a partition, complete the following steps:
1. From the main HCD panel, select option 1.3. Processors.
2. Enter s next to the Processor that you want to add a CHPID to and press Enter.
3. Enter s next to the CSS ID that you want to add a CHPID to and press Enter.
4. In the command line, enter add (see Figure 14-24) to add a CHPID.
*---------------------------- Add Channel Path -----------------------------*
| |
| |
| Specify or revise the following values. |
| |
| Processor ID . . . . : MUSCA Musca |
| Configuration mode . : LPAR |
| Channel Subsystem ID : 2 |
| |
| Channel path ID . . . . EE + Channel ID ___ + |
| Number of CHPIDs . . . . 1 |
| Channel path type . . . ICP + |
| Operation mode . . . . . SPAN + |
| Managed . . . . . . . . No (Yes or No) I/O Cluster ________ + |
| Description . . . . . . ICP Internal Coupling Peer______ |
| |
| Specify the following values only if connected to a switch: |
| Dynamic entry switch ID __ + (00 - FF) |
| Entry switch ID . . . . __ + |
| Entry port . . . . . . . __ + |
| |
| |
*---------------------------------------------------------------------------*
Figure 14-24 Processors: Add Channel Path, ICP
5. Complete the following updates and press Enter:
 – Channel path ID to EE
 – Channel path type to ICP
 – Operational mode to SPAN
 – Description to the description that you want
 
6. HCD prompts you to select to which partitions the CHPID should have access. Enter a forward slash ‘/’ next to the partitions that you want (see Figure 14-25), and press Enter.
*--------------------------- Define Access List ----------------------------*
| Row 22 of 31 |
| Command ===> _________________________________________ Scroll ===> CSR |
| |
| Select one or more partitions for inclusion in the access list. |
| |
| Channel subsystem ID : 2 |
| Channel path ID . . : EE Channel path type . : ICP |
| Operation mode . . . : SPAN Number of CHPIDs . . : 1 |
| |
| / CSS ID Partition Name Number Usage Description |
| / 1 MUSCA11 1 OS |
| _ 1 MUSCA12 2 OS |
| _ 1 MUSCA13 3 OS |
| _ 1 MUSCA14 4 OS |
| _ 1 MUSCA15 5 OS |
| _ 1 MUSCA16 6 OS |
| _ 1 MUSCA17 7 OS |
| _ 1 MUSCA18 8 OS |
| _ 1 MUSCA19 9 OS |
| / 2 MUSCA2A A CF MUSCA2A test CF partition |
| **************************** Bottom of data ***************************** |
| |
*---------------------------------------------------------------------------*
Figure 14-25 Processors: Define Access List, ICP
Because more partitions than the selected two are defined, the next panel Define Candidate List appears. For this example, we do not add any partitions in the access list. Therefore, press Enter.
HCD returns to the Channel Path List, which shows you the CHPID that was defined (see Figure 14-26).
                             Channel Path List Row 1 of 5 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E8 124/1 CL5 SPAN __ __ __ Y No FC 0433 Coupling Express LR
_ ED 144/2 CL5 SPAN __ __ __ Y No FC 0433 Coupling Express LR
_ EE _____ ICP SPAN __ __ __ N No ICP Internal Coupling Peer
Figure 14-26 Processors: Channel Path List, ICP
7. Define another ICP CHPID as EF to the same LPARs (see Figure 14-27).
                             Channel Path List Row 1 of 6 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
_ E0 12/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E4 16/1 CS5 SPAN __ __ __ Y No FC 0172 ICA SR 2 Links
_ E8 124/1 CL5 SPAN __ __ __ Y No FC 0433 Coupling Express LR
_ ED 144/2 CL5 SPAN __ __ __ Y No FC 0433 Coupling Express LR
_ EE _____ ICP SPAN __ __ __ N No ICP Internal Coupling Peer
_ EF _____ ICP SPAN __ __ __ N No ICP Internal Coupling Peer
Figure 14-27 Processors: Channel Path List, ICP
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.
Creating a CF link using ICP CHPIDs includes the following considerations:
•Each of the logical ICP links can support only one CHPID at each end of the link.
•How many ICP CF links are required to provide enough coupling bandwidth.
•Which z/OS LPARs on the same processors need access to the CF LPARs.
•Our example connects two ICP CHPIDs (E4 and E5) on the same processor.
To define a Coupling Facility link with ICP CHPIDs, complete the following 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 includes the ICP CHPID definition that 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 from which you want to connect, or in the Command Line enter L EE. In our example, we use EE.
5. Enter f next to the CHPID definition (see Figure 14-28), and press Enter.
                             Channel Path List Row 5 of 6 More:
Command ===> _______________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter. To add use F11.
Processor ID . . . . : MUSCA Musca
Configuration mode . : LPAR
Channel Subsystem ID : 2
CHID+ Dyn Entry +
/ CHPID AID/P Type+ Mode+ Sw+ Sw Port Con Mng Description
f EE _____ ICP SPAN __ __ __ N No ICP Internal Coupling Peer
_ EF _____ ICP SPAN __ __ __ N No ICP Internal Coupling Peer
Figure 14-28 Processors: CF Channel Path Connectivity List, ICP
6. HCD prompts you to specify the second ICP CHPID to which you want to connect. 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 EF. In our example, we use EF.
7. Enter p next to the CHPID definition (see Figure 14-29) and press Enter.
                    CF Channel Path Connectivity List Row 5 of
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ EE Y ICP SPAN N
p EF Y ICP SPAN N
Figure 14-29 Processors: CF Channel Path Connectivity List, ICP
8. HCD prompts you to specify to which CF channel path to connect. Complete the following updates (see Figure 14-30) and press Enter:
 – Destination processor ID to MUSCA
 – Destination channel subsystem ID to 2
 – Destination channel path ID to EE
*---------------- Connect to CF Channel Path -----------------*
| |
| |
| Specify the following values. |
| |
| Source processor ID . . . . . : MUSCA |
| Source channel subsystem ID . : 2 |
| Source channel path ID . . . . : EF |
| Source channel path type . . . : ICP |
| |
| Destination processor ID . . . . . . MUSCA___ + |
| Destination channel subsystem ID . . 2 + |
| Destination channel path ID . . . . EE + |
| |
| Timing-only link . . . . . . . . . . No |
| |
*-------------------------------------------------------------*
Figure 14-30 Processors: Connect to CF Channel Path, ICP
9. HCD checks available Control Unit numbers and Device addresses starting at FFFF and works backwards to provide suggestions. These suggestions can be overridden or accepted. We accept the suggestions for the second ICP CHPID (see Figure 14-31) and press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : EF Operation mode . . : SPAN |
| Channel path type . . . . : ICP |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFBD |
| Number of devices . . . . . 7 |
| |
*--------------------------------------------------------------------*
Figure 14-31 Processors: Add CF Control Unit and Devices, ICP
10. HCD provides suggested Control Unit numbers and Device addresses for the first ICP CHPID (see Figure 14-32). Observe that the Control unit number is the same and that seven devices were allocated. Press Enter.
*----------------- Add CF Control Unit and Devices ------------------*
| |
| |
| Confirm or revise the CF control unit number and device numbers |
| for the CF control unit and devices to be defined. |
| |
| Processor ID . . . . . . . : MUSCA |
| Channel subsystem ID . . . : 2 |
| Channel path ID . . . . . : EE Operation mode . . : SPAN |
| Channel path type . . . . : ICP |
| |
| Control unit number . . . . FFFD + |
| |
| Device number . . . . . . . FFA5 |
| Number of devices . . . . . 7 |
| |
| |
*--------------------------------------------------------------------*
Figure 14-32 Processors: Add CF Control Unit and Devices, ICP
HCD provides a summary of the Source and Destination CF Connectivity List (see Figure 14-33).
                    CF Channel Path Connectivity List Row 5 of 6
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more channel paths, then press Enter.
Source processor ID . . . . . : MUSCA Musca
Source channel subsystem ID . : 2
Source partition name . . . . : *
----------Source---------- -----------Destination----------- -CU- -#-
/ CHP CHID CF Type Mode Occ Proc.CSSID CHP CHID CF Type Mode Type Dev
_ EE Y ICP SPAN N MUSCA.2 EF Y ICP SPAN CFP 7
_ EF Y ICP SPAN N MUSCA.2 EE Y ICP SPAN CFP 7
Figure 14-33 Processors: Add CF Channel Path Connectivity List, ICP
 
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