Try this for JCL concats:

//STEPONE EXEC SAS //CLAIMS36 DD DSN=&MRGD..FY96.INV03,DISP=OLD // DD DSN=&MRGD..FY96.INV04,DISP=OLD,UNIT=AFF=CLAIMS36 // DD DSN=&MRGD..FY96.INV05,DISP=OLD,UNIT=AFF=CLAIMS36 // DD DSN=&MRGD..FY96.INV09,DISP=OLD,UNIT=AFF=CLAIMS36 DATA TEMP1; SET CLAIMS36.CLMS; RUN;

i.e., its a single DD statement.

Note, I've only done this with raw source data not SAS datasets, let me know how it works out.

At 02:37 PM 4/2/98 -0500, Kowalczyk, Andrew wrote: >Each of these datasets is SAS structured file on a tape. >Each is also a multi-volume dataset. >When I do not specify UNIT=AFF= this step runs fine - but I need three >tape drives. >I am trying to not be a resource hog so I thought the following should >work - with each of the dozen or so tapes mounted in order. > >//STEPONE EXEC SAS >//CLAIMS36 DD DSN=&MRGD..FY96.INV03,DISP=OLD >//CLAIMS46 DD DSN=&MRGD..FY96.INV04,DISP=OLD,UNIT=AFF=CLAIMS36 >//CLAIMS56 DD DSN=&MRGD..FY96.INV05,DISP=OLD,UNIT=AFF=CLAIMS36 >//CLAIMS96 DD DSN=&MRGD..FY96.INV09,DISP=OLD,UNIT=AFF=CLAIMS36 >DATA TEMP1; >SET > CLAIMS36.CLMS CLAIMS46.CLMS CLAIMS56.CLMS CLAIMS96.CLMS; >RUN; > >Yields the following system message: >IEC145I 413-04,IFG0194A,DMABHWTE,SAS609,CLAIMS46,70B,M10904,DMADLY. >IEC145I 413-04,IFG0194A,DMABHWTE,SAS609,CLAIMS56,70B,M10904,DMADLY. >IEC145I 413-04,IFG0194A,DMABHWTE,SAS609,CLAIMS96,70B,M10904,DMADLY. >IEF450I DMABHWTE SAS609 PROFILE - ABEND=S000 U0999 REASON=00000000 > >And the following SAS messages: >ERROR: Library CLAIMS46 is not in a valid format for access method >SASV6SEQ. >ERROR: Library CLAIMS56 is not in a valid format for access method >SASV6SEQ. >ERROR: Library CLAIMS96 is not in a valid format for access method >SASV6SEQ. > > >Why shouldn't this work? > >Can I do this in a single data step? > >I have decided against PROC APPEND because I am selecting only some >records and am creating derivative variables, as well. > > /*=====================*/ W. W. Viergever Viergever & Associates Sacramento, CA (916) 923-2355 /*=====================*/