Miklos, Others may want to correct me, but from what I've observed OPT(4) is only used for the DUMP command.
COPY will accept OPT(4), but all you seem to get is OPT(3). Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Miklos Szigetvari > Sent: Thursday, March 07, 2013 4:34 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: [IBM-MAIN] Speed up DASD copy > > Hi > > The dfdss accepting haply the OPT(4) keyword, the copy time dropped from > 10 minutes to abut 7 minutes. > The "real" copy will go from ESCON channels to FICON . > We have to do this only once, as "BusTech" gave up the support for zDASD . > > Thank you > > On 07.03.2013 12:37, David Devine wrote: > > Hi Miklos, > > I'm making the assumption that your are referring to dfdss. > > The traditional way of speeding up dfdss (adrdssu) copy's (or dumps) is by > using the OPT keyword. > > I believe the default is (3) which is 5 tracks read at at time. > > OPT(1) 1 track OPT(2) 2 tracks OPT(3) 5 tracks and OPT(4) 15 tracks read at > at time. > > > > If you are doing a full volume copy i expect your sysin should look > > something like this:- > > > > COPY FULL ALLX ALLDATA(*) IDY(TS0002) ODY(XX12C0) - COPYVOLID > PURGE > > OPT(4) > > > > or you may use INDD OUTDD for your volume selection > > > > Other criteria to consider, region size on your jobcard or pgm; number of > available channels; whether you want to copy your disks when in use or not. > > > > Using a product like softek's tdmf will allow for in flight disk copys. > > If you don't ahve it, then dfdss should only be used for packs when not in > use. > > > > With dfdss you need to cater for the volume ids on the source & target > volumes, so you may want to add steps to "clip" (ickdsf reformat) the source > volume before the dfdss copy and "clip" the target volume to the original > source name after the copy. > > This will keep it isolated and stop inadvertant access to the original > > source > volume. > > > > Good luck! > > > > Dave > > > ********************************************************** > ************ > > ************************* > >> Hi > >> > >> We need to copy a large number of DASD volumes (from zDASD to > DS6800). > >> Any option to speed up? > >> Seems CONCURRENT is not supported by the zDASD. > >> Kind regards, / Mit freundlichen Grüßen Miklos Szigetvari > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > > > > > -- > Kind regards, / Mit freundlichen Grüßen > Miklos Szigetvari > > Research& Development > ISIS Papyrus Europe AG > Alter Wienerweg 12, A-2344 Maria Enzersdorf, Austria > T: +43(2236) 27551 333, F: +43(2236)21081 > E-mail: miklos.szigetv...@isis-papyrus.com > Info: i...@isis-papyrus.com Hotline: +43-2236-27551-111 Visit our brand new > extended Website at www.isis-papyrus.com > --------------------------------------------------------------- > This e-mail is only intended for the recipient and not legally binding. > Unauthorised use, publication, reproduction or disclosure of the content of > this e-mail is not permitted. > This email has been checked for known viruses, but ISIS Papyrus accepts no > responsibility for malicious or inappropriate content. > --------------------------------------------------------------- > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
