Apologies for being ignorant So when we move to a higher version of hardware the storage area below the line shrinks ?
On Wed 9 Jan, 2019, 2:52 AM Mike Schwab <[email protected] wrote: > I would like to make a suggestion. REGION=xxx and other settings > should remain the same. If you specify REGION=(#K,#M,#G), where you > are requesting 24, 31, and 64 bit memory amounts subject to other > suffixes and normal override measures. > > > On Tue, Jan 8, 2019 at 4:08 PM <[email protected]> wrote: > > > > Jesse, > > > > While I like Region=0, one should always remember that there are > installation parms and exits that control how "zero" is actually applied > below and above the line. Ann old version of SAS that liked to getmain > everything up to the top of private has bitten me in the past as it blew up > on the system areas allocated down from top ☹ > > > > There is a wealth of data on private area usage in the SMF Type 30-4 > records and the Type 78-2 records that the OP can use to check the history > of Private and Common usage across changes in CEC, OS, etc. > > > > Simply checking the available private region for addresses before and > after the migration may help to drill down on the problem. A simple change > in Common storage can mean huge changes in available private. > > > > MXG is our friend. > > > > Ron Hawkins > > Director, Ipsicsopt Pty Ltd (ACN: 627 705 971) | m: +61 400029610 | h: > +61 387399252 | email: [email protected] > > > > -----Original Message----- > > From: IBM Mainframe Discussion List <[email protected]> On > Behalf Of Jesse 1 Robinson > > Sent: Wednesday, 9 January 2019 06:13 > > To: [email protected] > > Subject: Re: [IBM-MAIN] Generic query on Region allocation failure > > > > This post is not intended to be enlightening; it's merely corroborative. > We recently went from z12EC to z14. We had already upgraded to z/OS 2.3 > with hardware support service. In the week or so afterwards, we experienced > a handful of 'storage shortage abends' in tasks that had been running > unchanged for years. AFAIK no technical explanations ever came forth. In > the few PMRs we opened, the advice was to increase region size. We did. > Problems went away. Move on. > > > > I do have one piece of advice. Never specify a smallish region size. If > it's worth your time and effort to type in any region size at all, go for > some number >16M. It generally costs nothing and may save some debugging > grief down the road. I've seen cases where 0M may be required for a > particular product. Again, the cost of doing so is minimal. Why quibble? > Someone needs to refresh the communal coffee pot. > > > > . > > . > > J.O.Skip Robinson > > Southern California Edison Company > > Electric Dragon Team Paddler > > SHARE MVS Program Co-Manager > > 323-715-0595 Mobile > > 626-543-6132 Office ⇐=== NEW > > [email protected] > > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Tom Marchant > > Sent: Tuesday, January 08, 2019 7:49 AM > > To: [email protected] > > Subject: (External):Re: Generic query on Region allocation failure > > > > On Tue, 8 Jan 2019 10:16:00 +0400, Jake Anderson wrote: > > > > >IEF085I REGION NOT AVAILABLE ERROR CODE = 20 IEF187I NNNNNJJJ FAILED - > > >SYSTEM ERROR IN INITIATOR IEF472I NNNNNJJJ > > > > That means that the region that was specified is not available. > > > > Most likely, the region specified is less than 16M and that much storage > is not available below the line. It is certainly possible that the > available region size below the line is smaller on your old system than is > available on your new system. > > > > -- > > Tom Marchant > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > -- > Mike A Schwab, Springfield IL USA > Where do Forest Rangers go to get away from it all? > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
