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ramu_mohan21

Hi Board,
When I browsing the Datasets in my Mainframes installation using 3.4 option I observed like below

Enter "/" to Select Action Message Volume
XXTEST.XXIMS.XX67ABCD *VSAM*
XXTEST.XXIMS.XX67ABCD.DATA ZXT001+
XXTEST.XXIMS.XX67ABCD.INDEX ZXT001+

Enter "/" to Select Action Message Volume
XXTEST.XXIMS.EH67BCDE *PATH*

I know about VSAM, but I don't anything about this "*PATH*". Does it mean a VSAM Dataset (or) any other Dataset.
_________________
Best Regards,
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Rammohan Pabba
Software Engineer

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

Wonderful things happen when you enter HELP:

ramu_mohan21 · Posted: Tue Nov 02, 2004 8:38 am Post subject: Thank you

Hi Superk,
Thank you for giving the reply with the explanation needed.
I need a small information like in which case "*ALIAS*" can be utilized. I knew that "If for a dataset the number of HITS are more then creation of ALIAS will help in efficient accessing that dataset". Please clarify is this true.
_________________
Best Regards,
----------------
Rammohan Pabba
Software Engineer

Mike Chantrey · Posted: Tue Nov 02, 2004 9:28 am Post subject:

I would only use an ALIAS for 'disguising' the name of a dataset. For example, CICS developers have JCL for translating and compiling CICS programs. They need to access the CICS translators such as DFHECP1

kolusu · Posted: Tue Nov 02, 2004 10:27 am Post subject:

ramu_mohan21,

A path is the means by which a base cluster is accessed by way of its alternate indices. A path is defined and named using the AMS DEFINE PATH command. At least one path must be defined for each of the alternate indices through which the base cluster is to be accessed. The path name refers to the base cluster and alternate index pair. When a program opens a
path for processing, both the base cluster and the alternate index are opened.

An Alias is an alternate label; for example, a label and one or more aliases may be used to refer to the same data element or point in a computer program.

Hope this helps...

Cheers

Kolusu
_________________
Kolusu
www.linkedin.com/in/kolusu

ramu_mohan21 · Posted: Sun Feb 06, 2005 5:57 am Post subject:

HI Kolusu,
Thank you for giving me the sufficient information. It helped me alot.
One more clarification I needed.
1) I created a VSAM-KSDS
2) Kept one record in VSAM-KSDS
3) Created Alternate Index
4) Created Path for the Alternate Index
5) Loaded the records into Base Cluser

Then I was trying to Browse the Path through File-Aid. But it is giving me the message "EMPTY NON-REUSABLE VSAM". Why it is happening like this?

I could able to open the existing VSAM-Path files using File-Aid Browse. But I couldn't able to do the same for which I created newly.
_________________
Best Regards,
----------------
Rammohan Pabba
Software Engineer

ramu_mohan21 · Posted: Tue Feb 08, 2005 1:05 am Post subject:

HI Board,
Now my problem have been solved. In the below the step in RED color I missed.

1) I created a VSAM-KSDS
2) Kept one record in VSAM-KSDS
3) Created Alternate Index
3A) Building Alternate Index
4) Created Path for the Alternate Index
5) Loaded the records into Base Cluser
_________________
Best Regards,
----------------
Rammohan Pabba
Software Engineer