Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
-Original Message- From: IBM Mainframe Discussion List On Behalf Of Cheryl Walker John, Where are you getting the message. It certainly should be available to the public, and many of my readers have recently downloaded it. Here is a direct link - http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS268. Does it occur when you try to download just the program or the program plus Java? Is anyone else having trouble? It only supports Windows XP. Program with Java (not sure if I need the IBM Java; my workstation already has the Java 6 JRE installed). I get an error box with Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. Same result for the program without Java (just now tried that). When I manually navigate to the correct folder on ftp.software.ibm.com, right-click on either package and select Copy to Folder..., I get the access denied error. A colleague said he downloaded it earlier yesterday morning. I wonder if IBM has their server configured to remember domains that have downloaded it, and limit each requesting domain to one download? -jc- -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Chase, John wrote: When I manually navigate to the correct folder on ftp.software.ibm.com, right-click on either package and select Copy to Folder..., I get the access denied error. Sounds like a firewall/proxy error. A colleague said he downloaded it earlier yesterday morning. I wonder if IBM has their server configured to remember domains that have downloaded it, and limit each requesting domain to one download? Doubtful. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
-Original Message- From: IBM Mainframe Discussion List On Behalf Of Cheryl Walker John, Marianne Hammer of IBM gave an excellent SHARE presentation that showed the changes between releases. Go to www.share.org, click on Orlando Proceedings to the left, then search for session #2530. There is first a section about going from z/OS 1.7 to 1.8, where the goal had changed from being +/- 1% of equivalency to improving the performance. The performance improvement ranged from 1.6% (low n-way) to 4.8% (high n-way). For 1.8 to 1.9, the goal was a 5% improvement and their LSPR benchmarks showed a 5.2% improvement. Your mileage may vary, so it's very important to use WSC's free tool called SoftCap (WSC PRS268), which lets you enter the breakdown of your workloads to see what your expected change will be. Thanks for the info. It appears that, despite the inviting verbiage on the SoftCap download page, the tool is not generally available for download. I get access denied when I try to download it. -jc- -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
John, Where are you getting the message. It certainly should be available to the public, and many of my readers have recently downloaded it. Here is a direct link - http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS268. Does it occur when you try to download just the program or the program plus Java? Is anyone else having trouble? It only supports Windows XP. Cheryl -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Chase, John Sent: Monday, March 17, 2008 12:25 PM To: IBM-MAIN@bama.ua.edu Subject: Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption Thanks for the info. It appears that, despite the inviting verbiage on the SoftCap download page, the tool is not generally available for download. I get access denied when I try to download it. -jc- -- 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 -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Sun, 16 Mar 2008 10:49:24 -0500 Rick Fochtman [EMAIL PROTECTED] wrote: :---snip- : I'll accept some of the responsibility for your confusion, Walt. I : first used the words 5% decrease in utilization to describe how many : fewer resources the operating system was expected to use. I see now : how that phrase might be misinterpreted. (Ted's comments just added to : the confusion.) A better, non-ambiguous, wording choice would have : been to say 5% performance improvement like Cheryl did. (I guess : that's why they pay her the big bucks. :-) :---unsnip- :I can't help but stick my oar in here. :It appears that comparisons and branches are being combined into single :instructions on the z/10 processor. I would estimate that when z/OS, or :its successor, requires a minimum of a z/10 processor, we'll see further :improvements in operating system performance, and perhaps a slight :improvement in storage utilization. While older version of z/os (or any :other system) will PROBABLY continue to run, later versions will utilize :these new instructions heavily, with improvements as each component is :updated. Considering the number of compares followed by branches that :must be present in any operating systems, these new instructions MUST :represent performance improvements. But until application code starts using, i.e., the compilers generate z10 code, the performance improvement of just the supervisor will not make THAT big a deal. -- Binyamin Dissen [EMAIL PROTECTED] http://www.dissensoftware.com Director, Dissen Software, Bar Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Binyamin Dissen wrote: But until application code starts using, i.e., the compilers generate z10 code, the performance improvement of just the supervisor will not make THAT big a deal. The compilers are already supporting z10 via ARCH(8)/TUNE(8). See http://www.ibm.com/software/awdtools/czos/features/technical.html -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Walt Farrell wrote: To try to clarify that question a bit: I think -I- know what we're trying to do, but I'm not sure everyone on the list is interpreting that 5% decrease in the same way. Or maybe it was just Ted (sorry, Ted :-) who confused me. I'll accept some of the responsibility for your confusion, Walt. I first used the words 5% decrease in utilization to describe how many fewer resources the operating system was expected to use. I see now how that phrase might be misinterpreted. (Ted's comments just added to the confusion.) A better, non-ambiguous, wording choice would have been to say 5% performance improvement like Cheryl did. (I guess that's why they pay her the big bucks. :-) -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Ted's comments just added to the confusion I had no intent to confuse; if I did that I'm sorry. My comment was more intended to say that you cannot reduce resource consumption by 5% every release, because eventually that would tend to zero. And, we know MVS does not consume zero resources. - Too busy driving to stop for gas! -- 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
z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? TIA, -jc- -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Hi John, You *may* actually save some CPU with regards to other system related overhead associated with this upgrade. Check the MXG archives under subject Master for a thread in which a few Users are experiencing less CPU with regards to Master and RSM upgrades when migrating to z/OS 1.9. Regards, Patrick Falcone Chase, John [EMAIL PROTECTED] wrote: We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? TIA, -jc- -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
To be precise, it appears that the savings are actually as a result of RSM modifications in z/OS 1.8, carried forward, not z/OS 1.9. Sorry bout that. Patrick Falcone [EMAIL PROTECTED] wrote: Hi John, You *may* actually save some CPU with regards to other system related overhead associated with this upgrade. Check the MXG archives under subject Master for a thread in which a few Users are experiencing less CPU with regards to Master and RSM upgrades when migrating to z/OS 1.9. Regards, Patrick Falcone Chase, John wrote: We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? TIA, -jc- -- 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 -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Chase, John wrote: We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Fri, 14 Mar 2008 09:51:56 -0700, Edward Jaffe [EMAIL PROTECTED] wrote: Chase, John wrote: We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. Doesn't that conflict with the goals of the hardware sales people? ;-) Seriously, that's the first time I ever heard that. It used to be a pretty good ROT to expect 3-5% increase for each new release (all things being equal). 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Mark Zelden wrote: On Fri, 14 Mar 2008 09:51:56 -0700, Edward Jaffe [EMAIL PROTECTED] wrote: I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. Doesn't that conflict with the goals of the hardware sales people? ;-) Seriously, that's the first time I ever heard that. It used to be a pretty good ROT to expect 3-5% increase for each new release (all things being equal). Welcome to the 21st century. ;-) IBM is scraping the bottom of the barrel looking for performance these days. Example: the z10 added a bunch of new instructions that make compare/jump faster by not surfacing the condition code to later instructions in the pipeline. They even added instructions to help an application micro-manage its cache usage! Pipeline/cache issues used to be something only SYNCSORT and similar utilities cared about. Now everyone's doing it! -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. Actually, it's simpler than that. IBM used to promise it would not cost more for the same functionality in each subsequent release. Mind you, if you exploit new technology all bets are off. (0.95)**N becomes infeasible after awhile, since this tends towards zero. (Also, I cannot find it on the website[s], but I remember the promise from many presentations in the 1990's) - Too busy driving to stop for gas! -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
Ted MacNEIL wrote: I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. Actually, it's simpler than that. IBM used to promise it would not cost more for the same functionality in each subsequent release. Mind you, if you exploit new technology all bets are off. (0.95)**N becomes infeasible after awhile, since this tends towards zero. (Also, I cannot find it on the website[s], but I remember the promise from many presentations in the 1990's) This has nothing to do with anything said in the 1990s. It is a much more recent initiative that has been articulated verbally to ISVs, customers at at SHARE, and in other places. It is not a formal promise to anyone. It is an internal objective. So far, it's working. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
The new instructions on the z10 are interesting and offer some opportunities for improvement. We are still experimenting. There have been some surprises but that's what makes this job fun. John Reda Syncsort, Inc. -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Edward Jaffe Sent: Friday, March 14, 2008 1:57 PM To: IBM-MAIN@bama.ua.edu Subject: Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption snip IBM is scraping the bottom of the barrel looking for performance these days. Example: the z10 added a bunch of new instructions that make compare/jump faster by not surfacing the condition code to later instructions in the pipeline. They even added instructions to help an application micro-manage its cache usage! Pipeline/cache issues used to be something only SYNCSORT and similar utilities cared about. Now everyone's doing it! -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Fri, 14 Mar 2008 19:25:40 +, Ted MacNEIL [EMAIL PROTECTED] wrote: I believe IBM currently uses an unofficial goal of a 5% decrease in utilization per release. Actually, it's simpler than that. IBM used to promise it would not cost more for the same functionality in each subsequent release. Mind you, if you exploit new technology all bets are off. (0.95)**N becomes infeasible after awhile, since this tends towards zero. (Also, I cannot find it on the website[s], but I remember the promise from many presentations in the 1990's) I'd like to see that, because I recall reading parallel sysplex test reports that showed an increase. 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
I'd like to see that, because I recall reading parallel sysplex test reports that showed an increase. I'll hunt for the reference, but I'm not sure what you mean. SYSPLEX overhead goes up, or overhead goes up because you implemented SYSPLEX? The second is obvious. - Too busy driving to stop for gas! -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
This has nothing to do with anything said in the 1990s. It is a much more recent initiative that has been articulated verbally to ISVs, customers at at SHARE, and in other places. It is not a formal promise to anyone. It is an internal objective. So far, it's working. Possibly. But, 5%/release reduction is not sustainable. Eventually, something has to give. The promise I articulated does make sense. - Too busy driving to stop for gas! -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Fri, 14 Mar 2008 20:53:44 +, Ted MacNEIL [EMAIL PROTECTED] wrote: I'd like to see that, because I recall reading parallel sysplex test reports that showed an increase. I'll hunt for the reference, but I'm not sure what you mean. SYSPLEX overhead goes up, or overhead goes up because you implemented SYSPLEX? The second is obvious. The (former) parallel sysplex test reports weren't about migrating to parallel sysplex. http://www-304.ibm.com/jct03004c/servers/eserver/zseries/zos/integtst/library.html 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Fri, 14 Mar 2008 11:46:35 -0700, Edward Jaffe [EMAIL PROTECTED] wrote: ...snipped... This has nothing to do with anything said in the 1990s. It is a much more recent initiative that has been articulated verbally to ISVs, customers at at SHARE, and in other places. It is not a formal promise to anyone. It is an internal objective. So far, it's working. I wonder if there is some confusion about what a 5% decrease in utilization per release means? Was that intended to indicate a performance improvement or degredation? -- Walt -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
On Fri, 14 Mar 2008 15:40:36 -0500, Walt Farrell [EMAIL PROTECTED] wrote: On Fri, 14 Mar 2008 11:46:35 -0700, Edward Jaffe [EMAIL PROTECTED] wrote: ...snipped... This has nothing to do with anything said in the 1990s. It is a much more recent initiative that has been articulated verbally to ISVs, customers at at SHARE, and in other places. It is not a formal promise to anyone. It is an internal objective. So far, it's working. I wonder if there is some confusion about what a 5% decrease in utilization per release means? Was that intended to indicate a performance improvement or degredation? To try to clarify that question a bit: I think -I- know what we're trying to do, but I'm not sure everyone on the list is interpreting that 5% decrease in the same way. Or maybe it was just Ted (sorry, Ted :-) who confused me. -- Walt -- 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
Re: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption
John, Marianne Hammer of IBM gave an excellent SHARE presentation that showed the changes between releases. Go to www.share.org, click on Orlando Proceedings to the left, then search for session #2530. There is first a section about going from z/OS 1.7 to 1.8, where the goal had changed from being +/- 1% of equivalency to improving the performance. The performance improvement ranged from 1.6% (low n-way) to 4.8% (high n-way). For 1.8 to 1.9, the goal was a 5% improvement and their LSPR benchmarks showed a 5.2% improvement. Your mileage may vary, so it's very important to use WSC's free tool called SoftCap (WSC PRS268), which lets you enter the breakdown of your workloads to see what your expected change will be. Cheers! Cheryl -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Chase, John Sent: Friday, March 14, 2008 8:44 AM To: IBM-MAIN@bama.ua.edu Subject: z/OS 1.7 to z/OS 1.9 Migration - Increase in CPU/MSU Consumption We are just about to start the migration from z/OS 1.7 to z/OS 1.9. Would someone provide a ballpark percentage increase in the amount of CPU resources between the two releases so we can estimate the monthly increase in our z/OS base monthly billing? TIA, -jc- -- 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 -- 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