On Tue, 25 May 2010 06:29:36 -0700, Walter Marguccio <[email protected]> wrote:
>> I really have no idea how expensive CA-MIM is, but if performance is >> not acceptable, you may want to consider it. >No, MIM is not an option. I understand. It's hard to beat "free". >> With 4 systems in your ring, you are probably already pushing the limits. >That was my fear. >> I recall (years ago, before XCF) a client of mine adding a 3rd system to >> a GRS ring and the CA-1 scratch runs doubled in wall clock time due >> to catalog performance. >We have GRS via XCF. Catalogs traffic is what I fear the most. >I'll see what the GRS says, before and after. "Normal" catalog traffic may not be much different than you have today with 4 systems. Things that hit the catalog hard like the CA-1 scratch utility are the things that will suffer (a little more than they already do today). Depending on how your batch runs and how many data sets are allocated / deleted compared to actual step run times, you could see some differences there as well. Online response time shouldn't really be affected (but start up times could be). As usual, YMMV. Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:[email protected] Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html Systems Programming expert at http://expertanswercenter.techtarget.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
