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merging GDG at end of month

 
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ranjit5311
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Joined: 27 Nov 2005
Posts: 27
Topics: 14

PostPosted: Wed Jun 14, 2006 9:30 am    Post subject: merging GDG at end of month Reply with quote

Hi gurus,
JOB1 run daily and it create a GDG verion daily. We need to write JCl which will merge all the version created in the particular month. This job will run at the end of the month.
How this can be achieved .
TIA
Ranjit
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kolusu
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Joined: 26 Nov 2002
Posts: 12372
Topics: 75
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PostPosted: Wed Jun 14, 2006 9:41 am    Post subject: Reply with quote

ranjit5311,


Just give the base of GDG as input and code disp=(old,delete,keep). By doing so the daily base will have versions starting over from 1 after the monthly job.

Code:

//******************************************************************
//**** COPY DAILY FILES INTO MONTHLY BACK-UP FILE               ****
//******************************************************************
//STEP0100  EXEC PGM=FILEAID                                         
//SYSPRINT DD SYSOUT=*                                             
//DD01     DD DSN=YOUR DAILY GDG BASE,                             
//            DISP=(OLD,DELETE,KEEP)                               
//DD01O    DD DSN=YOUR MONTHLY GDG BASE(+1),         
//            DISP=(NEW,CATLG,DELETE),                             
//            UNIT=SYSDA,
//            SPACE=(CYL,(X,Y),RLSE),
//            DCB=(LRECL=NNN,RECFM=YY,BLKSZIE=0)
//SYSIN    DD *
$$DD01 COPY
/*


Hope this helps...

Cheers

Kolusu
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ranjit5311
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Posts: 27
Topics: 14

PostPosted: Wed Jun 14, 2006 10:26 am    Post subject: Reply with quote

Kolusu,
Nice to see ur promt reply.

According, to the soltuion above, If we run the JOB at the end of month feb then it will merge gdg vertion from JAN to Feb. But I want just the version of the feb month.

TIA
Ranjit
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kolusu
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PostPosted: Wed Jun 14, 2006 10:50 am    Post subject: Reply with quote

Quote:

According, to the soltuion above, If we run the JOB at the end of month feb then it will merge gdg vertion from JAN to Feb. But I want just the version of the feb month.


ranjit5311,

Look carefully on the DISP parameter on this input GDG. I am Deleting all the versions which is explained clearly in my post. Sad

Kolusu
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prasanth_thavva
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Joined: 14 May 2006
Posts: 40
Topics: 18

PostPosted: Sat Jun 17, 2006 12:00 am    Post subject: Reply with quote

Hi Kolusu,

i have query on the above jcl.

Code:
Code:

//******************************************************************
//**** COPY DAILY FILES INTO MONTHLY BACK-UP FILE               ****
//******************************************************************
//STEP0100  EXEC PGM=FILEAID                                         
//SYSPRINT DD SYSOUT=*                                             
//DD01     DD DSN=YOUR DAILY GDG BASE,                             
//            DISP=(OLD,DELETE,KEEP)                               
//DD01O    DD DSN=YOUR MONTHLY GDG BASE(+1),         
//            DISP=(NEW,CATLG,DELETE),                             
//            UNIT=SYSDA,
//            SPACE=(CYL,(X,Y),RLSE),
//            DCB=(LRECL=NNN,RECFM=YY,BLKSZIE=0)
//SYSIN    DD *
$$DD01 COPY
/*
 

according to his query he asked you to keep only last month backup...
if you look into jcl , jcl disposition refers to DISP=(OLD,DELETE,KEEP)..means you are deleting the existing version if it runs successfully if it not it keeps that dataset..
could you please explain me. in the JCL $$DD01 referring to first DD then what about the second DD... it automatically refers to the second DD?


one more doubt on KEEP, what is difference between KEEP and UNCATALOG..what is differences between PASS.
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