## 12.2 FICON CHPIDs, switches, and DASD control units 

This section describes defining FICON CHPIDs, and then connecting them to FICON switches and a DASD control unit. 

## 12.2.1 Defining FICON CHPIDs and connecting them to a FICON switch 

A new FICON CHPID includes the following considerations: 

GLYPH<SM590000> Channel path ID (CHPID). 

GLYPH<SM590000> Channel ID (CHID). 

GLYPH<SM590000> Channel path type. 

GLYPH<SM590000> Operational mode. 

GLYPH<SM590000> Description. 

GLYPH<SM590000> Dynamic entry switch ID. 

GLYPH<SM590000> Entry switch ID. 

GLYPH<SM590000> Entry port. 

GLYPH<SM590000> Partition access list. 

GLYPH<SM590000> For performance and redundancy, how many CHPIDs are required to connect to the FICON Switch, and then to one or more Control Units? 

GLYPH<SM590000> For performance and redundancy, how many I/O cards of that feature are installed in the processor and to what PCIe ports and to which CPC drawer do the I/O cards connect (see the PCHID/CHID report for a list of installed hardware)? 

GLYPH<SM590000> After a CHPID is defined, it can then be: 

– Added to a predefined partition in that CSS 

– Connected to a FICON switch 

– Connected to a Control Unit 

To define a new FICON CHPID, connect to a FICON switch, 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 12-3 on page 279) to add a CHPID. 

5. Complete the following updates and press Enter: 

– Channel path ID  to 14 

– Channel ID  to 114 

– Channel path type  to FC 

– Operational mode  to SHR 

– Description  to whatever description that you want 

– Dynamic entry switch ID  to 41 

– Entry switch ID  to 41  (optional, but preferred) 

– Entry port  to 10  (optional, but preferred) 

