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A sample of channel paths that are defined as dedicated, shared, and spanned is shown in Figure 5-3. 

<img src='content_image/1011934.jpg'>

The following definitions of a channel path are shown in Figure 5-3: 

GLYPH<SM590000> CHPID FF, which is assigned to PCHID 20A is dedicated access for partition 15 of LCSS0. The same applies to CHPID 00,01,02 of LCSS0, and CHPID 00,01,FF of LCSS1. 

GLYPH<SM590000> CHPID 03, which is assigned to PCHID 20E is shared access for partition 2, and 15 of LCSS0. The same applies to CHPID 05 of LCSS1. 

GLYPH<SM590000> CHPID 06, which is assigned to PCHID 120 is spanned access for partition 1, 15 of LCSS0, and partition 16, 17 of LCSS1. The same applies to CHPID 04. 

Channel spanning is supported for internal links (HiperSockets and IC links) and for certain types of external links. External links that are supported on z14 ZR1 servers include FICON Express16S+, FICON Express16S, FICON Express8S, OSA-Express6S, OSA-Express5S, and Coupling Links. 

The definition of LPAR name, MIF image ID, and LPAR ID are used to identify an LPAR by the channel subsystem to identify I/O functions from different LPARs of multiple LCSSs, which support the implementation of these dedicated, shared, and spanned paths. 

