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Query on concatenation of datasets

 
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karthik3883

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Joined: 19 Oct 2007
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PostPosted: Mon Jan 28, 2008 10:03 am    Post subject: Query on concatenation of datasets
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Hi,

I have a query suppose if am concatenating 5 datasets,suppose 3 are fixed block in size and 2 are variable block,what wil be my output dataset contains


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Karthik
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rajnikanth.ch

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Joined: 04 Apr 2007
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PostPosted: Mon Jan 28, 2008 11:43 am    Post subject:
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Hi karthik,
First of all u have to convert the variable block file into fixed bolck file and then concatenate all the files.
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dick scherrer

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PostPosted: Mon Jan 28, 2008 8:32 pm    Post subject:
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Hello,

And keep in mind that all 5 files must have compatible dcb info. When you read the dd with the 5-file concatenation, the file with the largets blksize should be the first file named.
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enrico-sorichetti

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PostPosted: Mon Jan 28, 2008 8:38 pm    Post subject: Reply to: Query on concatenation of datasets
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Quote:
the file with the largets blksize should be the first file named.


the alternative ( recommended ) is to explicitly define a large enough blksize in the first DD...
for dasd datasets, blksize=32760 should be enough

but if I remeber correctly the restriction was relaxed in some recent os release
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