Significance of different DD names like SYSUT1 , SYSUT2

puritansoul · New User Joined: 01 Feb 2007 Posts: 5 Location: Pune

I am new to Mainframes........I need help on some topics:-

What is the significance of different DD names like SYSUT1 , SYSUT2 ,SYSUT3 ,SYSUT4
And what do SORTIN , SORTOUT and SYSPRINT actually do.

guptae · Posted: Thu Feb 01, 2007 4:37 pm

Hi there,

Please go throgh

Use [URL] BBCode for External Links

puritansoul · New User Joined: 01 Feb 2007 Posts: 5 Location: Pune

Thanks Ekta

puritansoul · New User Joined: 01 Feb 2007 Posts: 5 Location: Pune

Ekta can u please recheck the link........Its about DFSORT and couldn`t really solve my queries........

guptae · Posted: Thu Feb 01, 2007 4:58 pm

Hi there,

These are different dd stmt required for sort steps (DFSORT/SYNCSORT) That's why i provided u that link

Alternately u can go through

www.damos.dircon.co.uk/html/dfsort_basics.html

Frank Yaeger · Posted: Thu Feb 01, 2007 10:57 pm

DD names are not exclusive to sort. Any utility or program can define a set of DD names for the data sets it uses. The purpose of a particular DD name is defined by the utility or program as well.

For example, SYSPRINT or SYSOUT are generally (though not always) DD names used for messages.

SYSUTx DD names can be used as temporary data sets (e.g. assembler, linkage editor) or as input and output data sets (e.g. IEBGENER), etc.

SYSOUT is DFSORT's message data set DD name. SORTIN is DFSORT's input data set DD name. SORTOUT is DFSORT's output data set DD name. (All of these names can be changed.) But any program can define SORTIN or SORTOUT as DD names (although that's probably not a good idea).