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Creation of VSAM cluster using JCL?


IBM Mainframe Forums -> JCL & VSAM
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annesequeira

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Joined: 24 Apr 2007
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PostPosted: Wed Apr 25, 2007 2:06 pm
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could you please let me know the JCL for creating a VSAM cluster?
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murmohk1

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PostPosted: Wed Apr 25, 2007 2:11 pm
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Anne,

Use IDCAMS and create the cluster. Let us know, if you need the control card.
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expat

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PostPosted: Wed Apr 25, 2007 2:12 pm
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The JCL is simple .....
Code:

//IDCAMS   EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//SYSIN    DD *
   your IDCAMS control statements go here
/*


And here's a link to IDCAMS to help you define your cluster

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DGT2I230/14.0?DT=20040628101835

You can actually use raw JCL to define the cluster as well, and this method can be found in the JCL manual from the "Manuals" link at the top of the page.
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prasadvrk

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PostPosted: Wed Apr 25, 2007 3:01 pm
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Click on the JCLS tab given on top of this page and then click on IDCAMS link, you can get ehe JCL you require
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dick scherrer

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PostPosted: Wed Apr 25, 2007 10:44 pm
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Hello,

A good way to get yourself a set of control statements is to find the VSAM definition of a similar file at your location.

Once you have that control info, use it and the IDCAMS manual to build the statements for your new vsam file.

When you have questions, we're here.
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superk

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PostPosted: Wed Apr 25, 2007 10:52 pm
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I think this is what the O/P is asking for.
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annesequeira

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Joined: 24 Apr 2007
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PostPosted: Thu Apr 26, 2007 3:27 pm
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murmohk1 wrote:
Anne,

Use IDCAMS and create the cluster. Let us know, if you need the control card.




oh i am not aware of contorl cards as i am doing this for the first time- is there no other way of doing this?
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expat

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PostPosted: Thu Apr 26, 2007 3:48 pm
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The control statements are easy, but you do need to know about the VSAM file that you want.

a) What name do you want to call your cluster
b) What will the file be used for, DB2, IMS, general data
c) Does it require an index
d) Where is the key and how long is the key
e) Is it a fixed length file or variable length
f) What are the record length(s), average and maximum
g) Will you be doing inserts into the file if indexed
h) How many records will it hold
i) Will it require an alternate index
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agkshirsagar

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Joined: 27 Feb 2007
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PostPosted: Thu Apr 26, 2007 5:28 pm
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expat,
That will confuse the OP.
I think dick's advice will suit the most for OP.
Quote:
A good way to get yourself a set of control statements is to find the VSAM definition of a similar file at your location.

To add little bit -
If your site has FILE-AID then it is the easiest way to copy attributes of existing VSAM dataset. (IMHO icon_smile.gif )
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expat

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PostPosted: Thu Apr 26, 2007 5:38 pm
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agkshirsagar wrote:
expat,
That will confuse the OP.

Maybe, but in my view these are the basic requirements for knowing how to define your files correctly. If the person wanting to allocate the file can not answer 80% of the questions, I'm not sure I would like them logging into my system.
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ahr

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PostPosted: Thu May 03, 2007 3:37 pm
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What is the meaning of OP
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expat

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PostPosted: Thu May 03, 2007 3:38 pm
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OP = Original Poster (Officially icon_biggrin.gif icon_biggrin.gif icon_biggrin.gif )
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agkshirsagar

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PostPosted: Thu May 03, 2007 3:43 pm
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Quote:
OP = Original Poster (Officially )

Like many of us I was confused by shortforms used in this forum. icon_lol.gif
Ex: OP, MHO, IMHO, FUD
Now I have got used to it and I too have started using them icon_lol.gif .
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expat

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PostPosted: Thu May 03, 2007 3:54 pm
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What's FUD ?
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agkshirsagar

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PostPosted: Thu May 03, 2007 3:59 pm
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Fear, uncertainty and doubt, a marketing strategy. icon_lol.gif
Ask william, he used it once...

I forgot 'my $0.02' in my last post. icon_lol.gif
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