Re: SORT ando MEMLIMIT best practice

-Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Paul Gilmartin Sent: Friday, April 18, 2014 16:31 To: IBM-MAIN@LISTSERV.UA.EDU Subject: SORT ando MEMLIMIT best practice o What are the consequences of allocating SORTWKn to VIO? DFSORT

Re: MEMLIMIT best practice

I don't know. Regards, Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Scott Ford Sent: Friday, April 18, 2014 16:07 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: MEMLIMIT best practice Kees: is there any way programmatically tha

Enterprise COBOL v5.1 and RDz v9.x

I should have done more research before opening my mouth...RDz does in fact support generating COBOL programs with XML PARSE in 2 different flavors. You can specify 'generate for XMLPARSE(COMPAT)' or 'generate for XMLPARSE(XMLSS)'. Generating for XMLPARSE(XMLSS) should have worked for COBOL V5.

Re: IBM-MAIN Digest - 20 Apr 2014 to 21 Apr 2014 (#2014-111)

> On Apr 22, 2014, at 12:00 AM, "IBM-MAIN automatic digest system" > wrote: > > IBM first introduced VSAM (in a more basic form of course) back in the > 1970s for DOS/VS, OS/VS1, and OS/VS2 ("Access Method Services"). I don't > think VSAM was ever separately licensed, but someone can correct me

Re: Enterprise COBOL v5.1 and RDz v9.x

I wonder if it would be possible to have an XMLPARSE(RUNTIME) compiler option that defers the decision about which XML to use to runtime, preferably with a choice of automatic decision ("if zIIP then...") or explicit operator specification at program invocation. Yes, the two XML choices are functi

Re: Enterprise COBOL v5.1 and RDz v9.x

VSAM Media Manager On Mon, Apr 21, 2014 at 4:49 PM, Bernd Oppolzer wrote: > I know that DB2 does not use VSAM KSDS - only for very limited purposes, > IIRC - some logfile directories or boot strap data sets, don't recall the > details. > > The tablespace data sets are VSAM LDS - linear data sets

Re: Enterprise COBOL v5.1 and RDz v9.x

I know that DB2 does not use VSAM KSDS - only for very limited purposes, IIRC - some logfile directories or boot strap data sets, don't recall the details. The tablespace data sets are VSAM LDS - linear data sets. Anyway: there are some improvements done to VSAM for DB2, AFAIK ... I believe so

Re: SORT ando MEMLIMIT best practice

I think the term "pointer compression" is relevant here - to java heap just above 2GB. Cheers, Martin Martin Packer, zChampion, Principal Systems Investigator, Worldwide Banking Center of Excellence, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blo

Re: Slow vary commands processing

We had this issue back in early 2000's. Ended up being something with GRS across 4 LPARs. We ended up writing a small rexx to delay next step for xxx seconds. /* REXX */ /* SLEEPS FOR THE SPECIFIED NUMBER OF SECONDS.

Re: Enterprise COBOL v5.1 and RDz v9.x

On Mon, 21 Apr 2014 11:52:01 +0200, Bernd Oppolzer wrote: > >The German Telefunken mainframe TR440's operating system BS3 also >had keyed file access services (different types) and a common run time >environment > Like LE is supposed to be? >for all languages (ALGOL, FORTRAN, PASCAL, PL/1, COBOL,

Re: Slow vary commands processing

> That's the problem with us now ...we don't see significant difference from > the logs . > > When one device is varied offline , it gets processed instantly > > When vary is issued against a set of devices (may be 10 ) , we see a delay > of 15 to 20 seconds . But our storage person keeps comp

Enterprise COBOL v5.1 and RDz v9.x

>I learned via PMR that Rational Developer for System z ("RDz") v9.x ("latest & >greatest") does not "officially" support >Enterprise COBOL v5.1. The workaround suggested by RDz Support was to specify >COBOL v4.2 and XMLPARSE(XMLSS) in the RDz >wizard, because COBOL v5.1 does not support XMLPARS

Re: SORT ando MEMLIMIT best practice

On Mon, 21 Apr 2014 11:44:01 -0500, Paul Gilmartin wrote: >On Mon, 21 Apr 2014 07:01:50 -0500, Tom Marchant wrote: > >>On Fri, 18 Apr 2014 14:07:29 -0500, Paul Gilmartin wrote: >> >>>Are there separate pools of real storage for above the bar and below the bar? >> >>Pools? No. Pools are a software

Re: SORT ando MEMLIMIT best practice

On Mon, 21 Apr 2014 11:44:01 -0500, Paul Gilmartin wrote: >On Mon, 21 Apr 2014 07:01:50 -0500, Tom Marchant wrote: > >>Real storage with real addresses < 2 GiB are below the bar. >>Real storage with real addresses > 2 GiB are above the bar. >> >ITYM ">= 2 GiB" Right. >But what do you call real s

Re: Enterprise COBOL v5.1 and RDz v9.x

On Mon, 21 Apr 2014 09:09:37 -0700, Ed Jaffe wrote: >On 4/21/2014 7:59 AM, Joel C. Ewing wrote: >> DB2 required greater flexibility and control to achieve its performance >> and data consistency goals than was possible with VSAM keyed-access >> support. A very cursory look at "Experiences Instal

Re: SORT ando MEMLIMIT best practice

On Mon, 21 Apr 2014 07:01:50 -0500, Tom Marchant wrote: >On Fri, 18 Apr 2014 14:07:29 -0500, Paul Gilmartin wrote: > >>Are there separate pools of real storage for above the bar and below the bar? > >Pools? No. Pools are a software concept. > >Real storage with real addresses < 2 GiB are below the

Re: Enterprise COBOL v5.1 and RDz v9.x

For whatever reason, such as insanity?, I have always viewed a VSAM LDS as a "private, permanent" paging space. Similar in concept to using the UNIX shmat() series of functions on a UNIX file to do I/O basically just using paging operations. At times, I wish that using DIV windowing services were "

Re: Enterprise COBOL v5.1 and RDz v9.x

On 4/21/2014 7:59 AM, Joel C. Ewing wrote: DB2 required greater flexibility and control to achieve its performance and data consistency goals than was possible with VSAM keyed-access support. A very cursory look at "Experiences Installing Oracle Database 10g on z/OS" would suggest Oracle on z/O

Re: Enterprise COBOL v5.1 and RDz v9.x

On Apr 21, 2014, at 7:37 AM, Shmuel Metz (Seymour J.) wrote: ---SNIP IDCAMS is just a utility that was included with VSAM. IBM initially offered VSAM as an Incremental Change Release (ICR), but the ICF came in with the program product DF/EF. DFP

Re: Enterprise COBOL v5.1 and RDz v9.x

I'm pretty sure the original motivation behind VSAM was to provide a more efficient keyed-access alternative to an earlier ISAM (Indexed Sequential Access Method) keyed-access method --ISAM had abysmal performance when the number of inserts became large. But, just as a clarification, while it is

Hillgang reminder

A reminder that the Hillgang meets at the Herdon offices of CA in Northern Virginia. - IT Economics of the Mainframe - Christopher T von Koschembahr, IBM - Running x86 Binaries on Linux for System z- Jim Porell, Mantissa - Cloud Storage for System z - Mike Melillo, CA - 50 years of System z

Re: Enterprise COBOL v5.1 and RDz v9.x

In , on 04/21/2014 at 01:14 PM, Timothy Sipples said: >IBM first introduced VSAM (in a more basic form of course) back in >the 1970s for DOS/VS, OS/VS1, and OS/VS2 ("Access Method Services"). IDCAMS is just a utility that was included with VSAM. IBM initially offered VSAM as an Incremental Ch

Re: Emulator Screen Size with Attachmate Extra X-treme 9.3

In <5354420b.8020...@phoenixsoftware.com>, on 04/20/2014 at 02:54 PM, Ed Jaffe said: >I was unaware that such a restriction existed. Both the 3180 and the 3192 had one set of "terminal type" configuration options for a fixed screen geometry and a separate set of options for variable geometry.

Re: Another Golden Anniversary - Dartmouth BASIC

In , on 04/18/2014 at 07:20 PM, Anne & Lynn Wheeler said: >is this your work? >http://en.wikipedia.org/wiki/Allen-Babcock Nol my wiki id is Chatul. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see We don't care. We do

Re: SORT ando MEMLIMIT best practice

On Fri, 18 Apr 2014 14:07:29 -0500, Paul Gilmartin wrote: >Are there separate pools of real storage for above the bar and below the bar? Pools? No. Pools are a software concept. Real storage with real addresses < 2 GiB are below the bar. Real storage with real addresses > 2 GiB are above the bar

Re: Enterprise COBOL v5.1 and RDz v9.x

Ok, I was not aware of that fact. Thank you. It is indeed a clever decision to make such "Access Method Services" part of the operating system, because this way a standard method is defined and all other languages or systems can use it. For example DB2, which uses VSAM as access method in several

Re: Slow vary commands processing

You can also look at SMF types 74 , 78 and 30 records (IO related fields )  On Sunday, April 20, 2014 1:38 PM, baby eklavya wrote: Thanks Lizette and Jake . We are looking into performance reports now .. On Sun, Apr 20, 2014 at 10:47 AM, Jake anderson wrote: > I agree with lizette. I/O repo

Health Check for datasets ?

Hi Searching for some kind of "health check"for datasets , which could understand the IEBPDSE messages or IDCAMS lists (CA/CI split , allocation , reorg etc etc) or a SEQ dataset allocation, blocking etc. -- Kind regards, / Mit freundlichen Grüßen Miklos Szigetvari Research& Dev