On Mon, 19 Mar 2007 06:06:51 -0400, Jousma, David <[EMAIL PROTECTED]> wrote:
>No these are the actual ZFS's(data components only). When I mentioned >earler that I had over 100K tracks of ZFS's this is what I meant. Yes I >do have the backups on there too, only because "I can". If I didn't >have the space, I wouldn't have put them on there. > That was the "duplication" I was referring to. The ZFS you run from and the backup. As you said, you have the space. But since I'm not planning on doing it that way a mod-27 would be a big waste of space since I am only using a little more than a mod-9's worth of space. Multiply the wasted space by 8 and thats about 16 mod-9s. DASD is cheap, but not that cheap. :-) Why multiply by 8? I have 6 sysres sets to accommodate multiple OS versions (plus the 1 maintenance version for each OS). I need to have at least 3 to rotate between for a given release. 1 to roll out to less critical LPARs first, then while that is rolling to the other LPARs a 2nd set may be rolling out to the less critical LPARs. Then if there is an emergency or a PE needs to be backed off, the 3rd set is required since the other 2 are already in use. In small environments (usually single production LPAR and a test / sysprog LPAR) I have gotten away with 2 sets total and just flip flopped between the 2. Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group: G-ITO mailto:[EMAIL PROTECTED] z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/ 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
