Using ZERO BLKSIZE in JCL.

BappiL · Post by **BappiL** » Sat Oct 17, 2015 1:55 pm

Hi,

I was thinking that if I male BLKSIZE ZERO in JCL for perticular dataset, it will loose any data on output file. But it did not do so. Why this happens?

Post by **William Collins** » Sat Oct 17, 2015 2:20 pm

Why would it happen? If you don't want the output, use DUMMY or DSN=NULLFILE.

BLKSIZE of zero tells the system to use the "system determined" blocksize for that dataset.

Post by **nicc** » Sat Oct 17, 2015 5:52 pm

Did you look up BLKSIZE in the JCL reference manual?

vikriih · Post by **vikriih** » Sat Oct 24, 2015 3:49 pm

BLKSIZE=0 means that developer does not want to specify the BLKSIZE and it will be defaulted to system determined

Post by **nicc** » Sat Oct 24, 2015 6:11 pm

Did you read that somewhere? Please read the JCL manual.

BappiL · Post by **BappiL** » Fri Dec 04, 2015 11:51 am

vikriih wrote:BLKSIZE=0 means that developer does not want to specify the BLKSIZE and it will be defaulted to system determined

Is it always so?

Post by **nicc** » Fri Dec 04, 2015 4:23 pm

vikriih wrote:
BLKSIZE=0 means that developer does not want to specify the BLKSIZE and it will be defaulted to system determined

BappiL wrote:
Is it always so?

I suggest that you, too, read the manual.

Mainframe, MVS and zOS Discussion

Using ZERO BLKSIZE in JCL.

Using ZERO BLKSIZE in JCL.

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Re: Using ZERO BLKSIZE in JCL.

Re: Using ZERO BLKSIZE in JCL.

Re: Using ZERO BLKSIZE in JCL.

Re: Using ZERO BLKSIZE in JCL.

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