Note:  The CE LR is a two-port card that occupies one PCIe+ I/O drawer slot. Therefore, an  IBM z14 Model ZR1server that is configured as a stand-alone Coupling Facility (CF) must  include at least one PCIe+ I/O drawer. The relationship between one or more CF link connections between CPCs must be  configured in HCD to enable the exchange of CF link signals. HCD generates the Control Unit  (CU) and device definitions automatically, if the CPCs are known within the same IODF file  and the AID or PCHIDs are not reserved by other definitions. Coupling connectivity for z14 ZR1:  The z14 ZR1 CPC  does not support coupling  connectivity using InfiniBand features . As such, it can connect only for transmitting  coupling or timing (STP) data to a z13/z13s or to another z14 M0x/z14 ZR1 CPC.  In a Parallel Sysplex that also contains zEC12/zBC12 servers, the z14 ZR1 or the  zEC12/zBC12  cannot  be used for running the Coupling Facility LPAR. The CF LPAR must  be run on a CPC that includes coupling connectivity to z14 ZR1 and the zEC12/zBC12. Depending on the hardware that is configured on the CPC, a different channel type must be  defined. Depending on the type of the CF link hardware, CF links operate up to a set distance.  Physical placement of the CPCs or CFs must be considered to avoid exceeding the maximum  distance that is supported by the CF link. For the Coupling Express Long Reach links, dense  wavelength division multiplexing (DWDM) technology can be used to extend the maximum  length of the CF links.  For more information about qualified devices, see the IBM Resource Link. Planning considerations STP signals can be exchanged between two CPCs without any CF LPARs involved. If  physical coupling links are established between two CPCs, HCD allows the configuration of  STP links (timing-only links).  For more information, see  z/OS HCD User’s Guide , SC34-2669, and Chapter 8, “Preparing  for Sysplex and configuring Server Time Protocol” on page 159 . IBM z14 Model M0x (machine type 3906) will be the last z Systems and IBM Z server  to support HCA3-O and HCA3-O LR adapters $^{a}$: z14 M0x will be last z Systems and IBM  Z server to support HCA3-O fanout for 12x IFB (#0171) and HCA3-O LR fanout for 1x IFB  (#0170). As announced previously, z13s is the last mid-range z Systems server to support  these adapters. Enterprises should begin migrating from HCA3-O and HCA3-O LR  adapters to ICA SR and Coupling Express Long Reach (CE LR) adapters on z14, z13, and  z13s.  For high-speed short-range coupling connectivity, enterprises should migrate to the  Integrated Coupling Adapter (ICA-SR). For long-range coupling connectivity, enterprises  should migrate to the new Coupling Express LR coupling adapter. For long-range coupling  connectivity requiring a DWDM, enterprises must determine their wanted DWDM vendor’s  plan to qualify the planned replacement long-range coupling link. a. IBM’s statements regarding its plans, directions , and intent are subject to change or withdrawal  without notice at IBM’s sole discretion. Info rmation regarding potential future products is  intended to outline our general product direction and it should not be relied on in making a  purchasing decision. 28  IBM z14 Model ZR1 Configuration Setup