Hi John, It's such a neat idea that IBM is already getting ready to provide it in z/OS 2. It's called 'Streaming SMF' and was presented at SHARE in San Antonio at session 18476 by Elpida Tzortzatos and Theresa Tai. Although they didn't post the session there, it's something to keep an eye out for.
I know about it because Frank Kyne is planning to write about it. It looks fantastic! Cheryl Cheryl Watson Watson & Walker, Inc. 100 Central Ave, Suite 1013 Sarasota, FL 34236 P-941-924-6565, F-941-924-4892 www.watsonwalker.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John McKown Sent: Wednesday, April 6, 2016 10:11 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: any need? I am wondering if anyone else thinks the idea below is useful and reasonable. If a product needs to "trap" data normally written to SMF, in real time for some reason (CA-7 external data set triggering comes to mind), the product must install the three IEFU8{3,4,5} exits. Even if they're only interested in a few of the records. The exit code must first examine the record number to see if it is of interest (likely most are not), and if so, process it. If you have multiple products doing this, it seems wasteful to me. So I got to thinking (ouch! that hurts). It would be nice if there were a way to register an interest in a particular SMF record number, or numbers, and have "something" happen when a write occurs. The "something" could be invoke an exit routine (like the IEFU8n exits above but already subsetted), or perhaps have the registration API supply a buffer area into which to copy the SMF record and an ECB address to post; or a routine to be invoked via a PC-ss of some sort into the requester's address space; or a program to be run in the requester's address space (perhaps as an SRB, perhaps as an IRB on the TCB which issued the request). I would personally prefer an IRB be scheduled on the requesting TCB. This would allow SVC 3 to clean up things automagically when the TCB ends. I would guess that the requester would need to be APF authorized, or better, have appropriate access to a RACF FACILITY or XFACILIT profile. I prefer the RACF approach, personally. Is this a solution looking for a problem? I.e. is there something that _you'd_ do with SMF in "real time" if such an API existed? CA: I know that you do weird and wonderful things with the SMF router in z/OS, perhaps you find this advantageous to make into a licensed (cost) feature of CAS9. -- How many surrealists does it take to screw in a lightbulb? One to hold the giraffe and one to fill the bathtub with brightly colored power tools. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
