GRS RING can/will run over CTC's. Not sure I would want to do that in a 3 member ring. It was bad enough in a 2 member ring.
I am currently using an ICF on a z/12 BC w/no issue. Howerr, I am not sure an ICF is the same thing you are describing. -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Brian Westerman Sent: Tuesday, January 29, 2019 12:24 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Internal Coupling Channel on z13 Hi, Has anyone had any experience with using the internal coupling channels on a z13. "supposedly" IBM has removed the active wait problems (where the CF lpar would try to use 100% of whatever it gets from PR/SM), but I was wondering if it's ready for prime time yet. I have a z13s (single CPU) with 3 LPARs on it, they are fairly low use, but I think it'a about time the started to use GRS since they share DASD (it was small, but now more and more as time goes on). They have been lucky so far, but I would rather not rely on luck. They don't have the cash to add a specialty processor, and if IBM has really reduced the overhead of ICF, then it might be a good fit for them. Anyone using the microcode ICF on a z13 or z14? If so, does it play well with everyone else? Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ::DISCLAIMER:: -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
