On Thu, 15 Nov 2007 16:30:34 +0200, Meganen Naidoo - BCX - RO JHB <[EMAIL PROTECTED]> wrote:
> >We would like to know what strategy's other companies use to install >these system fixes. How often do you receive/apply system fixes...etc > 100 companies, 100 different answers. Search the archives as this has been discussed. I've probably already wrote what I am going to write next.... I have been doing quarterly RSU minus 1 quarter. That means when RSU0709 came out, I did RSU0706. That is because quarterly RSU has (had) been the recommended way of doing maintenance since CST. But since everyone does that, doing current quarterly RSU is sort of like being current on PUT used to be (you are the first to really test it). But I also do look at HIPERs via ASAP on IBMLINK (when it works) and selectively apply ones that I really think could affect us. Mostly, I still wait for it to hit an RSU because if you look at ASAP as much as I do, you'll see that lots of HIPERs still go PE (this really scares me!) I used to do quarterly RSU + HIPER + PRP. That was the old recommendation and because of HIPERs that went PE (and getting burned a few times) I stopped doing it. I have found that the above has kept us really stable for z/OS 1.8 but I am considering changing to waiting one or 2 months after quarterly comes out instead of 3 months (i.e, when RSU0710 comes out, do RSU0709). This is because when I consider the amount of time to roll the maintenance out through my sandbox, development and production... there could be an additional 30-45 days from the time I apply it. Not to mention the delay before it actually hits RSU (more below on that). If you have access to the SHARE web site, Greg Daynes gave a session on z/OS maintenance best practices. His recommendation (which is similar to what IBM has recommended since CST) was to use RSU* because of the lag time that a PTF already has had from the time it was created, tested, available as corrective service and PUT is already a long time before it hits any RSU after CST. HTH, Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[EMAIL PROTECTED] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- 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
