Hi Gadi, You certainly cannot setup STP over your existing CTC connections but if you meet all the hardware and software requisites I think you should be able to install Timing-only links. Take a look at the STP page and the two excellent Redbooks especially the Planning Guide. Of course if you are going to purchase and install the coupling links, the STP feature on each processor, and you already run a basic Sysplex why not convert to running with an ICF partition and make it a Parallel Sysplex? There would be some nice benefits including the ability to use GRS STAR mode. IBM should be able to give you definitive answers and planning assistance but that is how I read it.
http://www-03.ibm.com/systems/z/advantages/pso/stp/software.html STP is available as a feature on z9 EC, z9 BC, z990, and z890 servers, and is supported by z/OS and z/OS.e V1.7 and above. <z10 too> Even though the planned availability version of z/OS and z/OS.e V1.7 and V1.8 have function to support STP, additional software maintenance is required. Maintenance being installed on the z/OS and z/OS.e system image can be done using the "rolling IPL" process, which allows you to avoid a sysplex-wide outage. The "rolling IPL" process allows coexistence of the following system images: z/OS and z/OS.e V1.7 or above with the maintenance z/OS and z/OS.e V1.7 or above without the maintenance z/OS and z/OS.e V1.4 through z/OS and z/OS.e V1.6 Software support for Timing-only links Timing-only links are Coupling links that allow two servers to be synchronized using STP messages, when a CF does not exist at either end of the Coupling link. If Timing-only links are required for the configuration, then PTFs are also needed. Best Regards, Sam Knutson, GEICO System z Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 (cell) 301.996.1318 "Think big, act bold, start simple, grow fast..." -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of ??? ?? ??? Sent: Monday, November 10, 2008 6:34 AM To: IBM-MAIN@BAMA.UA.EDU Subject: STP question Hi, We are working on replacing out sysplex time with STP. We currently have two machines connected is a BASIC sysplex using CTC's. I spoke to someone at IBM, and he said that he remembered that in order to use STP, a coupling facility is required. >From what I've read, this is not correct. So, Is a coupling facility required to use STP? TIA gadi ==================== This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
