John, With BUFND set to the number of CI per CA, or equivalent in KB, REPRO will almost always outperform DFSMSdss. The best you'll get from DFSMSdss for logical dump is one track per IO, even if you specify OPT(4).
Tuned IDCAMS is _____FAST_____! Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of > John McKown > Sent: Wednesday, October 20, 2010 2:02 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] DFDSS VSAM logical restore? > > Thanks, Alan. > How about IDCAMS EXPORT / IMPORT? We are looking at what it would take to > replace CA-FAVER. It is a good product, but we are looking at possible > alternatives. IDCAMS is __slow__! > > -- > John McKown > Maranatha! <>< > Sent from my Vibrant Android phone. > > On Oct 20, 2010 2:59 PM, "Starr, Alan" <alan_st...@calpers.ca.gov> wrote: > > Hi John, > > I don't expect that it would. As far as I know, DF/dss "logical" processing > is aware of datasets and "records" (i.e. blocks) but doesn't usually concern > itself with the content of these datasets. There are two exceptions that I'm > aware of: > > 1) DF/dss can change the amount of unused (pad) space in a dataset > 2) DF/dss can change a PDS into a PDSE > > I believe that if you want to "reorganize" a VSAM dataset, you'll have to > use VSAM REPRO (which consolidates split CIs and CAs). > > Cheers, > Alan > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Beh... > ---------------------------------------------------------------------- > 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 > > ---------------------------------------------------------------------- > 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 > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
