SMF 62 record

Hello I collected some SMF62 record in my shop to analyse dataset openning,and I happended to find that there‘s no record relates to DB2 table spaces dataset.The doc says:’This record is not generated when a system task issues the OPEN macro’ ,so what does the 'system task' exactly mean?

SMF99 record

from the dump. Johnny ying -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

Re: SMF99 record

Hi,guys Thanks for your reply! and Don't argu about collecting SMF99 or not =^_^=. I post the thread because IBM support asked for a WLM dump for diagnostic purposes one time and another ,they also said they can get SMF99 from the DUMP,so I think maybe someone can tell me how to do that. I'll try

How does the VSAM async IO work?

the RB under which my program is running,so IRB will get control immediately if my program lose control for some reason.And after the second physical IO started,SVC 3 will remove the IRB and my program get dispatched again. Thanks Johnny Ying

Re: How does the VSAM async IO work?

sorry,typo error,VSAM PUT with ASY optcd,not SYN. On Wed, May 26, 2010 at 11:47 PM, Johnny Ying johnny.y...@gmail.com wrote: Hi,all Could you please explain how the VSAM async IO works.I just want to know a perspective view of VSAM IO. Say when my program issuing a VSAM PUT with SYN optcd

Re: Tracing executed assembler program instructions in MVS batch JCL

John: Is ASMIDFB capable of trace an APF program? I got an 047 abend when my program exec a restricted SVC instruction within ASMIDFB. Johnny Ying -- The ASM dataset is where ASMIDF will look for any REXX macros that you might

Re: EXT 1005 z/OS System Trace entry

--MVS OS/390 z/OS places a value in the CPU timer before invoking a task. --The task will either decide to wait on its own (to satisfy a page fault, for I/O, etc.) or will keep running until it uses up the quantum of time. hey,will you explained more details for us. Where does a value came

Re: mvs preemption dispatcher

hi,guys Thanks for your valuable informations,very appreciated! Johnny Ying 2009/01/07 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN

mvs preemption dispatcher

hi,gurus I searched for weeks,buf can't find more information on preemption and timer pops subject,so could you please explain a little for me,or where can I get useful informations.I am really confused and curious on this topic. thanks Johnny Ying

how to get LSQA Bottom Addr

hi,everyone Is there a simply way to get address space's LSQA Bottom Address. I checked the LDA control block,there is LDACRGTP which represent the User Region Top Address.But I can't find LSQA Bottom Address. maybe I should scan subpool DQE.

question about CICS communication profile

Hi,all [CICS version TS 3.1] 1. DTP through MRO link below is from CICS Application Programming Reference ALLOCATE (MRO) PROFILE(name):specifies the name (1–8 characters) of a set of session- processing options that are to be used during execution of terminal control commands for the session

a little confusion of XMS

Hello all: After reading up on Extended Addressability Guide ,I am confused on ASN resue issue. According to the book,if address space owns a spaces switch ET and connect it to the system lx,then this address space's ASID is not reusable for the duration of IPL. This is because other

Re: a little confusion of XMS

Thanks for your reply.Now I am more clear about it. with ASN reuse facility,PT and SSAR are replaced by PTI and SSAIR,PTI and SSAIR will check the instance number.More information(like A/S instance number) was stored in linkage stack so that PR can return control to exact right address

Re: a little confusion of XMS

Thanks very much,now I see :) -- 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

Re: a little confusion of XMS

I found below in the principle of operation, I should read book more carefully and then ask :) When the ASN-and-LXreuse facility is installed and enabled,the first operand of LASP is two doublewords contains PASTEIN and SASTEIN, ASN may be translated to obtain ASTE, the ASTEIN in the located