On Tue, Jul 19, 2016 at 10:15 AM, Reichman Joseph <[email protected]> wrote:
> With RECFM=U there is 1 record per block and the BDW is RDW + 4 ? > Technically speaking, with RECFM=U there is not a BDW. There is just a bunch of bytes with no access method imposed interpretation. You must determine the number of bytes actually read by taking the number of bytes you requested to be read (the BLKSIZE basically) and subtract the CCW residual count to determine the number of bytes actually read. Luckily, IBM supplies an example. ref: http://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.idad400/len99.htm > > 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:[email protected]] On > Behalf Of John McKown > Sent: Tuesday, July 19, 2016 10:57 AM > To: [email protected] > Subject: Re: Bsam VS Qsam for VB records > > On Tue, Jul 19, 2016 at 9:54 AM, Pew, Curtis G < > [email protected] > > wrote: > > > On Jul 19, 2016, at 9:39 AM, Reichman Joseph <[email protected]> > > 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 > > [email protected] > > ITS Systems/Core/Administrative Services > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to [email protected] with the message: INFO IBM-MAIN > > > > > > -- > "Worry was nothing more than paying interest on a loan that a man may > never borrow" > > From: "Quest for the White Wind" by Alan Black > > Maranatha! <>< > John McKown > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email > to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- "Worry was nothing more than paying interest on a loan that a man may never borrow" From: "Quest for the White Wind" by Alan Black Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
