There is at least one TSO ZAP command on the CBT tape. It's very useful for examining DASD data. You don't actually need to alter any data; just look at it. The command is highly agnostic and will read pretty much any block. It won't tell you how an RDW got broken, but it can show the results in full-screen mode. It requires no programming.
. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-302-7535 Office robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Reichman Joseph Sent: Tuesday, July 19, 2016 8:16 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: Bsam VS Qsam for VB records With RECFM=U there is 1 record per block and the BDW is RDW + 4 ? Joe Reichman Joe Reichman IT Specialist Master Files Division New Carrollton Federal Building, B7-182 OS:CTO:AD:CP:I:IB Flex M,T,Th,F Home office (240) 863 - 3965 Office (240) 613-4350 Cell (917) 748-9693 TOD M - F 7:30 am - 4:00 pm -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@listserv.ua.edu] On Behalf Of John McKown Sent: Tuesday, July 19, 2016 10:57 AM To: IBM-MAIN@listserv.ua.edu Subject: Re: Bsam VS Qsam for VB records On Tue, Jul 19, 2016 at 9:54 AM, Pew, Curtis G <curtis....@austin.utexas.edu > wrote: > On Jul 19, 2016, at 9:39 AM, Reichman Joseph <joseph.reich...@irs.gov> > wrote: > > > > I am not thinking of moving this in production it may help me track > > down > a problem > > If your motivation is to examine the physical blocks, why not read > with QSAM specifying RECFM=U? > That is what I do, with: RECFM=U,LRECL=32756,BLKSIZE=32760 and then use QSAM and "have fun". Or not, as the case may be. > > -- > Pew, Curtis G > curtis....@austin.utexas.edu > ITS Systems/Core/Administrative Services ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN