I should have added to not forget to circle back around, and delete the renamed 
logstream at some point.

Dave Jousma
Vice President | Director, Technology Engineering





From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
Jousma, David <000001a0403c5dc1-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, April 2, 2024 at 6:38 AM
To: IBM-MAIN@LISTSERV.UA.EDU <IBM-MAIN@LISTSERV.UA.EDU>
Subject: Re: Loss of data for logstream
Mark, We’ve run into the problem before, either on a single CF sandbox system, 
or when we did GDPS region swaps. Let me cut/paste a couple snippets for you 
DATA TYPE(LOGR) REPORT(NO) UPDATE LOGSTREAM NAME(IFASMF. ALSSYS. DATA) 
NEWSTREAMNAME(IFASMF. ALSSYS. ZATA)


Mark,



We’ve run into the problem before, either on a single CF sandbox system, or 
when we did GDPS region swaps.  Let me cut/paste a couple snippets for you



    DATA TYPE(LOGR) REPORT(NO)

        UPDATE LOGSTREAM NAME(IFASMF.ALSSYS.DATA)

            NEWSTREAMNAME(IFASMF.ALSSYS.ZATA)



Then when you redefine your logstream, enable these options too.  Since then, 
weve never had a lost data problem.



UPDATE LOGSTREAM NAME(IFASMF.ALSSYS.DATA)

  STG_DUPLEX(YES) DUPLEXMODE(UNCOND)







Dave Jousma

Vice President | Director, Technology Engineering











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