Jim, What about the situation with OA28261?
APAR Identifier ...... OA28261 Last Changed ........ 09/05/11
XCF AT Z/OS R10 HBB7750 RUNNING ON D/T209X ALLOCATES MUCH HIGHER
AMOUNT OF ESQA (FIXED STORAGE)
Symptom ...... IN INCORROUT Status ........... OPEN
Severity ................... 3 Date Closed .........
Component .......... 5752SCIXL Duplicate of ........
Reported Release ......... 750 Fixed Release ............
Component Name CROSS SYS.EXT.S Special Notice
Current Target Date ..09/07/31 Flags
SCP ...................
Platform ............
Status Detail: DESIGN/CODE - APAR solution is being designed
and coded.
PE PTF List:
PTF List:
Parent APAR:
Child APAR list:
ERROR DESCRIPTION:
XCF typically allocated ESQA storage during the IPL for XES
related dynamic area. The amount of this dynamic storage area
was based on the twice the value of CVTMAXMP or at least 8
10-page buffers. With an LPAR configured with 2 logical cp, it
will allocated 2x2x10 pages ESQA when running on pre D/T209x.
When the LPAR configured with 2 logical cp runing on D/T209x,
as the CVTMAXMP could be returned with x3F as seen, XCF would
allocate 2x63x10 pages instead.
LOCAL FIX:
If customer really do not expect to enable the dynamic CPU add
feature provided in D/T209x which could affect the return value
related to the CVTMAXMP, customer could ADD the :
DYNCPADD DISABLE in their LOADxx parmlib member, which would
cause CVTMAXMP value be established based on the configuration
rather than the 'potential' value.
_________________________________________________________________
Dave Jousma
Assistant Vice President, Mainframe Services
david.jou...@53.com
1830 East Paris, Grand Rapids, MI 49546 MD RSCB1G
p 616.653.8429
f 616.653.8497
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of Jim Mulder
Sent: Tuesday, May 12, 2009 5:30 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: Adding CPU engines without IPL
IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> wrote on 05/12/2009
05:22:03 PM:
> Mark Zelden wrote:
> > On Tue, 12 May 2009 19:42:37 +0000, Ted MacNEIL <eamacn...@yahoo.ca>
wrote:
> >
> >
> >>> It was true as Al and Ted wrote, but no longer true with z/OS
1.10.
> >>>
> >> Don't you still have to have the CP's RSVD in the LPAR profile?
> >>
> >
> > No.
> >
> >
> >> That is a hardware issue rather than a software one.
> >> -
> >>
> >
> > Both (as is often the case). It's a z10 (and future) hardware
feature
> > exploited by z/OS 1.10 or above.
> >
>
> What they don't tell you is that this feature provides a strong
> rationale for specifying the following in DIAGxx:
>
> CbLoc Virtual31(IHALCCA,IHAPCCA)
>
> z/OS now allocates (at IPL) control blocks to represent the maximum
> number of CPs, zAAPs, and zIIPs that could possibly exist for your
> processor type. For z10, that's 64--even if you run it only as a
> uniprocessor!
LCCAs and PCCAs continue to be allocated only for online
processors. The LCCA and PCCA vector tables are allocated
for the maximum size, but they are only 4 bytes per processor.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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