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| shilpa.sabade |
 Posted: Mon Oct 07, 2013 6:51 am Post subject: Migrating WMQ Z/OS to WMQ AIX V 7.5 |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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Hi All,
good morning .
In our organization .. we are migrating all our Z/OS applications to AIX .
Our Z/OS currently hosts WMQ Server 7.0.1.
Plan is to install MQ 7.5 on AIX and move the applications to AIX.
I understand the changes that we need to do WRT to MQ .... but
Need help to understand .. what all changes are required for applications connecting to MQ .. will there be any code changes ??? |
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| Vitor |
| Posted: Mon Oct 07, 2013 7:06 am Post subject: Re: Migrating WMQ Z/OS to WMQ AIX V 7.5 |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| shilpa.sabade wrote: |
| will there be any code changes ??? |
Not outside any changes needed to migrate any application from z/OS to AIX (if any).
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 7:19 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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| Vitor .. Thank you for the reply .. just confirm.. will there be any changes wrt MQ Load Library ( linkage ) . |
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| JosephGramig |
| Posted: Mon Oct 07, 2013 7:20 am Post subject: Re: Migrating WMQ Z/OS to WMQ AIX V 7.5 |
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Grand Master
Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA
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| shilpa.sabade wrote: |
| ...I understand the changes that we need to do WRT to MQ... |
So you understand that you will be building new Qmgrs (even if they have the same name) and that a different security scheme will be enforced that have to do with CHLAUTH rules?
There is a significant change with respect to security between WMQ 7.0.1 and 7.5 (or 7.1). It is much tighter by default. |
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| Vitor |
| Posted: Mon Oct 07, 2013 7:22 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| shilpa.sabade wrote: |
| will there be any changes wrt MQ Load Library ( linkage ) . |
Of course there will. As there will be for everything linked with the application code. WMQ libraires are no different in concept to other load libraries, just in content. You'll need to relink every single application in accordance with the AIX rules & those which happen to use WMQ will be no different
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Honesty is the best policy.
Insanity is the best defence. |
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| Vitor |
| Posted: Mon Oct 07, 2013 7:23 am Post subject: Re: Migrating WMQ Z/OS to WMQ AIX V 7.5 |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| JosephGramig wrote: |
| shilpa.sabade wrote: |
| ...I understand the changes that we need to do WRT to MQ... |
So you understand that you will be building new Qmgrs (even if they have the same name) and that a different security scheme will be enforced that have to do with CHLAUTH rules? |
It's a proud boast by the OP that he's got to grips with WMQ Security on AIX as it differs from z/OS even on 7.0.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 7:23 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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Hi Joseph .. changes wrt to MQ are manageable for me .. am more worried about changes to the applications which are currently using MQ on Z/OS ..
Thank you. |
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| bruce2359 |
| Posted: Mon Oct 07, 2013 7:36 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9486
Location: US: west coast, almost. Otherwise, enroute.
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First, identify all apps using MQI calls. All apps will need to be recompiled, and bound (link-edited) with the AIX-MQ libraries.
App source code that make explicit (or implicit) reference to QSGs will need to be modified.
Is WMQ on z/OS integrated with CICS apps? IMS apps? Other? These apps will need to be modified.
Next, there are WMQ for z/OS-specific MQSC object definitions/attributes, such as DEFINE STGCLASS. You will need to make changes to these object defs.
_________________
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ב''ה
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 7:41 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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Bruce2359 .. Thank you..
WMQ Z/OS is integrated with CICS apps .. we also use CKTI and batch triggering .. I have figured out changes wrt to Triggering and Process definitions ..
We dnt have QSGs .. so we are good here as well.
Can you please give more insight - into CICS application related changes .. |
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| mqjeff |
| Posted: Mon Oct 07, 2013 7:50 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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If you aren't going to run CICS on AIX, then you have to change absolutely everything about your code.
IF you are going to run CICS on AIX, then you only have to change those pieces of code that CICS needs you to change. |
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 7:55 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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| We will be running CICS on AIX . |
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| bruce2359 |
| Posted: Mon Oct 07, 2013 8:02 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9486
Location: US: west coast, almost. Otherwise, enroute.
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| shilpa.sabade wrote: |
| We will be running CICS on AIX . |
Are you migrating all of CICS from z/OS to CICS (TXSeries) on AIX? Or will MQ apps on AIX be driving z/OS CICS apps?
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 8:06 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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| Migrating ALL CICS Z/OS to AIX . |
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| bruce2359 |
| Posted: Mon Oct 07, 2013 8:21 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9486
Location: US: west coast, almost. Otherwise, enroute.
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| shilpa.sabade wrote: |
| Migrating ALL CICS Z/OS to AIX . |
Will there be any data or other apps still on z/os?
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| shilpa.sabade |
| Posted: Mon Oct 07, 2013 8:27 am Post subject: |
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Voyager
Joined: 23 Feb 2011
Posts: 76
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| We are migrating DB2 to AIX as well. Hence there will be no app or Data on Z/SO. |
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