Hi Sysplex-community, In a month or so our sysplex team overhere has to come up with a recommendation: standalone CFs vs ICFs. And I mean, ICF-only! We know the (excellent, BTW !!!) paper "GM13-0103-05 System-Managed CF Structure Duplexing” by Dave Raften. It plays a key role in this discussion because of the "Failure Isolation" aspect as explained on p.7 of his paper.
In this kind of discussions, you have believers and non-believers (whatever arguments are advanced by the other clan), it's like a religious war. I have 3 questions. Q1. Are you a sysplex-er which went the ICF-only way (by applying (more than probably) System- or User-Managed Duplexing? If yes, can we get in touch with you to exchange experiences? Q2. Is the table on p.27 of Dave's paper about approximate impact ratios (multipliers) relative to the simplex cost & the percentage of CF operations to be applied for each category OK? Or did you apply (slight) adjustements to those multipliers? Q3. Appendix A outlined a methodology to calculate the Simplex resource use. Is there a tool commonly available? In stead of each having to write it's own spreadsheet in it's little corner? And when it would be available, I suppose it contains the duplex aspect with the multiplier ratios too? Jan ---------------------------------------------------------------------- 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
