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mrinalsolanki · Beginner Joined: 02 May 2006 Posts: 56 Topics: 16

Hi,
I am trying to create the following dataset in the JCL,

superk · Advanced Joined: 19 Dec 2002 Posts: 684 Topics: 5

kolusu · Posted: Wed Jun 27, 2007 8:41 am Post subject:

mrinalsolanki,

Trying adding the BLKSIZE parm also

AshuSharma · Beginner Joined: 11 Oct 2006 Posts: 6 Topics: 1

Thanks kolusu and superk..

After adding the BLKSIZE parm, I was able to browse the AUDIT dataset, but its empty...
There is a C program that is writing to this dataset...
But in the program, it is accessing the dataset as

afopen("AUDIT", "wb", "seq", "recfm=v");

So, is it a problem that I am creating this dataset with
"RECFM=FB"

(I even tried to run the JCL again with
"RECFM=VB" keeping other parameters same (also specified BLKSIZE),
But then its giving error - "Invalid record length"..

What should I do???

semigeezer · Posted: Wed Jun 27, 2007 10:43 am Post subject:

create the file,
add data to it using the editor and save that data
browse it to be sure that worked (it should)
run your program using the now existing data set
browse the data again.

If you can't read it, and you probably will not be able to, then it means the C program is writing the data incorrectly, Verify that the C program is not trying to write any lines longer than 32752 (which is LRECL-4)
One of the utilities, I forget which one, can print lrecls of each record if you need to find which record is bad.

Nic Clouston · Posted: Wed Jun 27, 2007 1:53 pm Post subject:

Just to re-emphasise: if the RECFM is VB then remember that BLKSIZE must be 4 bytes more than the LRECL. You should be able to omit the BLKSIZE but if you set it to 0 then the system will set it correctly for you (all things being equal, of course!).
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Utility and Program control cards are NOT, repeat NOT, JCL.

AshuSharma · Beginner Joined: 11 Oct 2006 Posts: 6 Topics: 1

Hi all,

I have tried all the solutions, including

RECFM=FB,LRECL=32756,BLKSIZE=32756
RECFM=VB,LRECL=32756,BLKSIZE=32756
RECFM=VB,LRECL=32756,BLKSIZE=0

For the first solution, I was able to browse dataset, but it was empty,
(Although the program is writing to it)...

For the last two solutions, it's now throwing error :
"Invalid record length".

kolusu · Posted: Thu Jun 28, 2007 9:56 am Post subject:

AshuSharma,

Did you read the responses of semigeezer or nic clouston in this thread? Read them once again clearly.

Kolusu
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Kolusu
www.linkedin.com/in/kolusu

dbzTHEdinosauer · Posted: Thu Jun 28, 2007 10:48 am Post subject:

AshuSharma,

dbzTHEdinosauer · Posted: Thu Jun 28, 2007 10:51 am Post subject:

why don't you remove the 'seq' from your open and use the
RECFM=VB,LRECL=32756,BLKSIZE=32760
_________________
Dick Brenholtz
American living in Varel, Germany

expat · Posted: Thu Jun 28, 2007 11:14 am Post subject:

Nic,

Nic Clouston · Posted: Thu Jun 28, 2007 12:51 pm Post subject:

expat · Posted: Thu Jun 28, 2007 3:08 pm Post subject:

Equal to an error of course Rolling Eyes

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If it's true that we are here to help others,
then what exactly are the others here for ?

dbzTHEdinosauer · Posted: Thu Jun 28, 2007 4:24 pm Post subject:

no response from OP yet, but as I was going thru the V1R8 z/OS XL C/C++ Programming guide, I came across this little tidbit:

AshuSharma · Beginner Joined: 11 Oct 2006 Posts: 6 Topics: 1

Hi all,

I used
RECFM=VB,LRECL=32756,BLKSIZE=32760
and it worked...

There were two problems which I could found

1. RECFM=VB,LRECL=32756,BLKSIZE=0
does not work, the system was not automatically setting it correctly...
It was throwing error - "Invalid Record Length"...

2. The C program was not somehow reading this file correctly
After correcting the code, it was reading the file, and now I am able to browse it...

THANKS A LOT EVERYONE...