OSA-Express6S 1000BASE-T Ethernet OSA-Express5S 1000BASE-T Ethernet OSA-Express4S 1000BASE-T Ethernet z14 introduces an Ethernet technology refresh with OSA-Express6S 1000BASE-T Ethernet  features to be installed in the PCIe I/O drawer, which is supported by the 16 GBps PCIe Gen3  host bus. The performance characteristics are comparable to the OSA-Express5S features  and they also retain the same form factor and port granularity. Note:  Operating system support is required to recognize and use the second port on the  OSA-Express6S 1000BASE-T Ethernet feature. The supported operating systems are listed in Table 7-8 on page 255 and Table 7-9 on  page 257. Statement of Direction $^{a}$: OSA-Express6S 1000BASE-T adapters (#0426) is the last  generation of OSA 1000BASE-T adapters to support connections operating at 100 Mbps  link speed. Future OSA-Express 1000BASE-T adapter generations will support operation  only at 1000 Mbps (1Gbps) link speed. The OSA-Express5S 1000BASE-T Ethernet feature is installed exclusively in the PCIe I/O  drawer. Each feature includes one PCIe adapter and two ports. The two ports share a CHPID,  which can be defined as OSC, OSD or OSE. The ports can be defined as a spanned channel,  and can be shared among LPARs and across logical channel subsystems. Each adapter can be configured in the following modes: Note:  Operating system support is required to recognize and use the second port on the  OSA-Express5S 1000BASE-T Ethernet feature. The supported operating systems are listed in Table 7-8 on page 255 and Table 7-9 on  page 257. The OSA-Express4S 1000BASE-T Ethernet feature is installed exclusively in the PCIe I/O  drawer. Each feature includes one PCIe adapter and two ports. The two ports share a CHPID,  which is defined as OSC, OSD, or OSE. The ports can be defined as a spanned channel, and  can be shared among LPARs and across logical channel subsystems. Each adapter can be configured in the following modes: Note:  Operating system support is required to recognize and use the second port on the  OSA-Express4S 1000BASE-T Ethernet feature. a. All statements regarding IBM plans, directions, and intent are subject to change or withdrawal  without notice. Any reliance on these statements of general direction is at the relying party’s  sole risk and will not create liability or obligation for IBM. GLYPH<SM590000> QDIO mode, with CHPID types OSD GLYPH<SM590000> Non-QDIO mode, with CHPID type OSE GLYPH<SM590000> Local 3270 emulation mode, including OSA-ICC, with CHPID type OSC GLYPH<SM590000> QDIO mode, with CHPID types OSD and OSN GLYPH<SM590000> Non-QDIO mode, with CHPID type OSE GLYPH<SM590000> Local 3270 emulation mode, including OSA-ICC, with CHPID type OSC 294  IBM z14 (3906) Technical Guide