On Mon, 10 Aug 2009 16:15:18 -0500, Patrick O'Keefe wrote: >On Mon, 10 Aug 2009 15:20:53 -0500, Mark Zelden wrote: >>... >>"CONCATENATION ENHANCEMENT: Like-attribute concatenation will be >>allowed for eligible data sets with different block sizes in any >>order; the largest no longer need be first. Eligible data sets are >>partitioned or sequential data sets that are DASD-resident, accessed >>by QSAM, and for which the system obtained buffer space. >>... > I think an earlier contributor wrote "DASD or tape". I found that unlikely because each tape label would have to be read by OPEN; I welcome the clarification. But I could believe it would suffice if either the largest block size was DASD-resident or it was specified in the DD statement.
>Interesting wording. >"partitioned ... data sets ... accessed by QSAM ..." > >If they really meant that, wouldn't that restrict this enhancement >to a concatenation sequential datasets and/or PDS members? >Doesn't a PDS or concatenation of PDSs have to be accessed by >BPAM? > >I assume they meant QSAM or BPAM. >(I could ask for the umpteenth time why there is no QPAM, but >I won't.) > If you had asked (which you didn't) someone might have answered that it's because the definition of the NOTE word has no provision for specifying the offset of the current record within a block. But that merely regresses the question (which you didn't ask) one level. -- gil ---------------------------------------------------------------------- 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
