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<img src='content_image/973222.jpg'>

a. Both ports must be defined with the same CHPID type. 

b. These features are defined by using Function IDs (FIDs). 

At least one I/O feature (FICON) or one coupling link feature (ICA SR or HCA3-O) must be present in the minimum configuration. 

The following features can be shared and spanned: 

GLYPH<SM590000> FICON channels that are defined as FC or FCP 

GLYPH<SM590000> OSA-Express features that are defined as OSC, OSD, OSE, OSM, or OSX 

GLYPH<SM590000> Coupling links that are defined as CS5, CIB, or CL5 

GLYPH<SM590000> HiperSockets that are defined as IQD 

The following features are exclusively plugged into a PCIe I/O drawer and do not require the definition of a CHPID and CHPID type: 

GLYPH<SM590000> Each Crypto Express (5S/6S) feature occupies one I/O slot, but does not have a CHPID type. However, LPARs in all CSSs have access to the features. Each Crypto Express adapter can be defined to up to 85 LPARs. 

GLYPH<SM590000> Each RoCE Express/Express2 feature occupies one I/O slot but does not have a CHPID type. However, LPARs in all CSSs have access to the feature. The 10GbE RoCE Express can be defined to up to 31 LPARs per PCHID. The 25 GbE RoCE Express2 and the 10GbE RoCE Express2 features support up to 126 LPARs per PCHID. 

GLYPH<SM590000> Each zEDC Express feature occupies one I/O slot but does not have a CHPID type. However, LPARs in all CSSs have access to the feature. The zEDC feature can be defined to up to 15 LPARs. 

GLYPH<SM590000> Each zHyperLink Express feature occupies one I/O slot but does not have a CHPID type. However, LPARs in all CSSs have access to the feature. The zHyperLink Express adapter works as native PCIe adapter and can be shared by multiple LPARs. Each port can support up to 127 Virtual Functions (VFs), with one or more VFs/PFIDs being assigned to each LPAR. This support gives a maximum of 254 VFs per adapter. 

## I/O feature cables and connectors 

The IBM Facilities Cabling Services fiber transport system offers a total cable solution service to help with cable ordering requirements. These services can include the requirements for all of the protocols and media types that are supported (for example, FICON, Coupling Links, and OSA). The services can help whether the focus is the data center, SAN, LAN, or the end-to-end enterprise. 

Cables:  All fiber optic cables, cable planning, labeling, and installation are client responsibilities for new z14 installations and upgrades. Fiber optic conversion kits and mode conditioning patch cables are not orderable as features on z13 servers. All other cables must be sourced separately. 

