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DCB parameter

 
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Chinnadu

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Joined: 05 Mar 2009
Posts: 42
Location: Hyderabad

PostPosted: Mon Aug 31, 2009 11:24 pm    Post subject: DCB parameter
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Hi,

I have a DCB parameter defined like below.

DCB=(XY.A.ABCDDMS,BLKSIZE=32760).

Can some one tell me what is DCB=(XY.A.ABCDDMS, and how to see the length of this file?
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vikash singh

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Joined: 12 May 2007
Posts: 15
Location: noida

PostPosted: Mon Aug 31, 2009 11:32 pm    Post subject:
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The new dataset will be cataloged with the parameters of XY.A.ABCDDMS

The system copies the following DCB information from the
data set label:

DSORG
RECFM
OPTCD
BLKSIZE
LRECL
KEYLEN
RKP

If you code any DCB subparameters after the dsname, these
subparameters override the corresponding subparameters in
the data set label. The system copies from the referenced
label only those subparameters not specified on the
referencing DD statement.

Answer to your question:
The length of the new file will be same as of XY.A.ABCDDMS
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viveksurya

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Joined: 08 Jun 2009
Posts: 36
Location: Bangalore

PostPosted: Thu Sep 03, 2009 2:17 pm    Post subject:
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The new file for which DCB has been defined as DCB=(XY.A.ABCDDMS,BLKSIZE=32760) will be created withe same DCB attributes (except BLKSIZE which will be 32760) as that of already created dataset XY.A.ABCDDMS. The LRECL of the new file will be same as that of XY.A.ABCDDMS.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Thu Sep 03, 2009 3:16 pm    Post subject:
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You may check the "extended parameters" equivalent to "XY.A.ABCDDMS" in JESJCL of the respective Job. They will show what happened to the file with DCB=(XY.A.ABCDDMS,BLKSIZE=32760).
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