Brian, Thanks for pointing that out. Wondering why IBM couldn’t have designed some automated method to determine if the KCindex needs to be rebuilt or not? Now the issue will be to remember to let it rebuild after a maintenance cycle? Or z/OS release change? How will I know when it *needs* to be rebuilt? I want to set this just to streamline the startup, but not at the expense of some future "headscratching" trying to figure out why something isn’t updating....
_____________________________________________________________________________________________________ Dave Jousma AVP | Manager, Systems Engineering Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand Rapids, MI 49546 616.653.8429 | fax: 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Brian Westerman Sent: Tuesday, October 29, 2019 12:30 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: [EXT] Re: zOS 2.4 migration guide **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** There is an APAR that provides a new setting (KCINDEX=N) that you use (after the first time you start zosmf), that keeps the i/o's down to a much more reasonable level. Our clients that have small single frame systems (z13s, z14-rz1), find that it cuts the startup time by almost 40%. The official IBM speak is: "With APAR PH06678, a new option "KCINDEX" is provided in IZUSVR. If "KCINDEX=N" is provided when starting IZUSVR, the embedded knowledge center will not build its index. As index is not rebuilt, startup time has 12% improvement. CPU usage has 24% improvement. I/O has 16% improvement. " Remember, the first time you start it though it's going to be slow because you can't use the KCINDEX=N until after that first time. Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
