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Removal of IMS databases

 
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Shweta12j

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Joined: 10 May 2010
Posts: 32
Location: Mumbai

PostPosted: Thu May 20, 2010 10:51 am    Post subject: Removal of IMS databases
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Hello All,

I need to remove some of the IMS databases (few DBD's and DYNS) from the system. I don't know what DBD's and DYNS mean. I am new to IMS.

Can please someone help me to know how shall i approach the above requirement.

Appreciate any kind of help.


Regards,
Shweta
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Thu May 20, 2010 3:51 pm    Post subject:
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Amen, not to disappoint you but if you are new to IMS, you should not be doing this work - however, have you contacted the IMS DBA at your shop, to start with?
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Thu May 20, 2010 4:04 pm    Post subject: Re: Removal of IMS databases
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Shweta12j wrote:
I don't know what DBD's and DYNS mean. I am new to IMS.
DBD is DATABASE DESCRIPTION. It is to define segements,key fields and access methods used for an IMS Database.

I've not heard about DYNS when talking about IMS, however this is what I found:The IMS procedure, the DBC procedure, and the DCC procedure no longer require DD statements for MODBLKS data sets (MODBLKSA and MODBLKSB) if online change for MODBLKS is disabled. Online change for MODBLKS is disabled by defining MODBLKS=DYN in the DFSCGxxx member or in the CSL section of the DFSDFxxx member. But the way, you have posed your question it does not look like if you are really looking for, what I've linked to above text.
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Shweta12j

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Joined: 10 May 2010
Posts: 32
Location: Mumbai

PostPosted: Fri May 21, 2010 9:01 am    Post subject:
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Thanks Anuj for your prompt response.

Actually i need to remove certain IMS databases from the system.So i was just thinking about what all things i should consider before i start working on this.

In short i need to do impact analysis of the above requirement.

For that I have shortlisted some of the pgms and PSB's which uses these databases. Can you please tell me if i am missing out on any other factor which needs to be considered while working on this.

Kind Regards,
Shweta
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donateeye
Warnings : 2

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Joined: 01 Jun 2007
Posts: 62
Location: chennai

PostPosted: Fri May 21, 2010 11:23 am    Post subject:
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As Anuj said, one important factor is, Did you contact your DBAs for doing this? cos, this process should have them involved.
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PeterHolland

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Joined: 27 Oct 2009
Posts: 2433
Location: Netherlands, Amstelveen

PostPosted: Fri May 21, 2010 11:46 am    Post subject:
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Utility "FABNRVRS" described in IBM IMS Library Integrity Utilities for z/OS
is a very handy tool to see all the links between DBD, PSB, PCB and ACB.
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Shweta12j

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Joined: 10 May 2010
Posts: 32
Location: Mumbai

PostPosted: Mon May 24, 2010 5:06 pm    Post subject:
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Hello all!

Thanks for your reponse . Will be engaging DBA team for this.
Before going to them even i was required to do some initial impact analysis so that's why was confirming everything.

Regards,
Shweta.icon_smile.gif
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Anuj Dhawan

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Joined: 22 Apr 2006
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PostPosted: Mon May 24, 2010 5:59 pm    Post subject:
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Good Luck, hopefully, we had been helpful.
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