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
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>
>
>--
>Kind regards, / Mit freundlichen Grüßen
>Miklos Szigetvari
>
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