I don't quite understand the desire for IPL from a removable medium. I get it if you're IPLing z/OS literally for the first time. That has happened to me once in 20 years when we built a new data center. The last new data center was a decade before that. If you have a running system in place, surely it's easier to use existing data sets. Even then, you cannot do much with just what could possibly live on a removable device.
. . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-302-7535 Office [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Mike Schwab Sent: Tuesday, October 04, 2016 9:48 AM To: [email protected] Subject: (External):Re: Weird idea? IPL LPAR from DVD ISO image on HMC? On Tue, Oct 4, 2016 at 7:35 AM, John Eells <[email protected]> wrote: > R.S. wrote: > <snip> >> >> The notable exception is z/OS COD - Customized Offering Driver. While >> it can be IPL-ed from both DVD and ftp, the next activity is to >> restore DVD content to CKD disk and the source has to be DVD. > > > Actually, you can *install* the COD from DVD, but z/OS itself is IPLed > from CKD disk. Only the copy of Standalone ICKDSF that comes with the > COD is IPLed from the DVD. Also, we do not support Internet delivery > for the COD today. > > There are at least two reasons why z/OS does not get IPLed from DVD. > One is that even the COD's z/OS subset is too large to fit on a DVD. A > full copy of z/OS, of course, is even larger. The second is that we'd > need significant changes to IPL from the DVD- or another HMC file > system-based IPL process. > It might be feasible, but I have not looked at that and currently do > not plan to look at it. It's far below other things on my personal > list of things to make easier. > > -- > John Eells > IBM Poughkeepsie > [email protected] > How about a bare bones z/OS starter system? To let you ICKDSF your disk volumes and restore from your backup. Or create zFS file systems and download the software to there. -- Mike A Schwab, Springfield IL USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
