On Fri, 17 Dec 2021 01:46:59 +0100, Radoslaw Skorupka <[email protected]> wrote:
>Another question, CF links: Assuming a sysplex has two Coupling >Facilities - do CFs need to be connected one to each other? >Note, I don't mean z/OS - CF connection. It is about CF-CF connection. >I know it *was* a requirement, but maybe something has changed. > IIRC, the original requirement was for timing links only. The CFs only need to be connected for structure duplexing, and that is still true. From the z/OS 2.4 Setting Up a Sysplex book: "PR/SM Planning Guide describes the different type of coupling facility channels, including peer mode links, which can provide both sender and receiver capability on the same link by being configured as an unshared channel path to a single coupling facility and at the same time as a shared channel path among several sender LPARs. CF-to-CF links allow a coupling facility sender channel to communicate with another coupling facility, a function that is required for system-managed duplexing rebuild." Art Gutowski Huntington National Bank ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
