The PARALLEL keyword will cause DSS to start each copy as a sub task and run them together. Use SERIAL to single thread the copy if you wish.
On Thu, 7 Mar 2013 13:34:15 +0100, Miklos Szigetvari <miklos.szigetv...@isis-papyrus.com> wrote: > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
