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| Unix/AIX Vs z/OS |
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| Gemz |
 Posted: Tue Mar 31, 2009 11:13 pm Post subject: Unix/AIX Vs z/OS |
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Centurion
Joined: 14 Jan 2008
Posts: 124
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Hi All,
I had worked on MQ and MB in Unix/AIX OS.
My new project will be in z/OS Mainframe system. I don't have any idea about this z/OS Mainframe system.
I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise.
Pls share your thoughts.....
-GemZ
_________________
GemZ
"An expert is one who knows more and more about less and less until he knows absolutely everything about nothing...." |
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| Vitor |
| Posted: Wed Apr 01, 2009 12:13 am Post subject: Re: Unix/AIX Vs z/OS |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Gemz wrote: |
| I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise. |
In usage mostly identical, in administration very different. You have the concept of queues (in all flavours) and queue managers, but the creation of queues is made more complex by the way z/OS handles files. There's also big differences in security, control, monitoring, logging, housekeeping, etc, etc, etc.....
There are also some differences in application rules, noteably connection, that you'll need to be aware of.
Spend time with the z/OS WMQ documentation, as well as the sys prog running your z/OS machine. Also whoever's running RACF & the DASD. Something like "z/OS for Dummies" will help as well so you've got some background on the OS architecture (which is nothing like Unix!!)
_________________
Honesty is the best policy.
Insanity is the best defence.
Last edited by Vitor on Wed Apr 01, 2009 12:14 am; edited 1 time in total |
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| Gaya3 |
| Posted: Wed Apr 01, 2009 12:13 am Post subject: Re: Unix/AIX Vs z/OS |
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Jedi
Joined: 12 Sep 2006
Posts: 2493
Location: Boston, US
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| Gemz wrote: |
Hi All,
I had worked on MQ and MB in Unix/AIX OS.
My new project will be in z/OS Mainframe system. I don't have any idea about this z/OS Mainframe system.
I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise.
Pls share your thoughts.....
-GemZ |
MQ Concepts are same,
But only OS is different.
_________________
Regards
Gayathri
-----------------------------------------------
Do Something Before you Die |
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| Vitor |
| Posted: Wed Apr 01, 2009 12:19 am Post subject: Re: Unix/AIX Vs z/OS |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Gaya3 wrote: |
| MQ Concepts are same |
Take a script defining local queues from any Unix box and run it unmodified on a mainframe. Then try to fix it once the default page set is full. Or page set 0 is full.
Or wonder why the z/OS queue manager won't start because it's out of log space.
| Gaya3 wrote: |
| But only OS is different. |
Like a family car is different to an ocean liner! 
For instance, an experienced WMQ Unix person will immediately attempt to check the install using runmqsc and looking in /var/mqm. Both of which fail completely on z/OS.....
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| exerk |
| Posted: Wed Apr 01, 2009 12:21 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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Not forgetting the ultimate in High Availability, the Rolls-Royce of solutions, Queue Sharing Groups.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| kevinf2349 |
| Posted: Wed Apr 01, 2009 5:57 am Post subject: Re: Unix/AIX Vs z/OS |
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Grand Master
Joined: 28 Feb 2003
Posts: 1311
Location: USA
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| Gaya3 wrote: |
| Gemz wrote: |
Hi All,
I had worked on MQ and MB in Unix/AIX OS.
My new project will be in z/OS Mainframe system. I don't have any idea about this z/OS Mainframe system.
I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise.
Pls share your thoughts.....
-GemZ |
MQ Concepts are same,
But only OS is different. |
.....and the method of install, and the way you create queue managers, and the logging, and the security, and the trigger monitor, and the .....
I guess it is so much 'the same' that they wrote those additional manuals for the good of their health! 
Now seriously, from a pure programmer usage standpoint, it is very similar....just remember that the default for syncpoint changes on z/OS.
For the MQ Administrator there are definately differences. Mostly in the way you create queue managers, but administration of the actual objects are pretty much the same. |
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| Vitor |
| Posted: Wed Apr 01, 2009 6:09 am Post subject: Re: Unix/AIX Vs z/OS |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| kevinf2349 wrote: |
| just remember that the default for syncpoint changes on z/OS. |
Very good point! 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| bruce2359 |
| Posted: Wed Apr 01, 2009 7:28 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise. |
At the highest concept-level, z/OS (MVS) is an o/s. It does all those things that o/s's are supposed to do. It does many of them with stellar results. WMQ is WMQ on all platforms, in concept.
Tools for installing z/OS, customizing, monitoring, day-to-day z/OS admin (systems programming) is very different from Win/UNIX. Admin interfaces on z/OS are ISPF panel-driven - with menus and sub-menus. With the exception of the few WMQ things unique to z/OS (pagesets, for example), day-to-day MQ admin is similar - a queue is a queue, a channel is a channel.
The 80-20 rule applies: 80 percent of what you know about WMQ admin is consistent across all WMQ platforms - especially MQSC. In the case of z/OS, the other 20 percent is very different from Win/UNIX.
In z/OS, Job Control Language (JCL) is the batch scripting language. It's, ummm, odd/different. Time Sharing Option (TSO) commands are something like c: or $ prompt commands, although WMQ admin is not usually done with TSO commands.
Make friends with a z/OS systems programmer (sysadmin) at your organization. Read the WMQ z/OS Concepts and Planning manual. Take a basic z/OS hands-on class - learn about JCL, TSO. Take IBM's 4-day WMQ z/OS System Administration course.
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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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| Sam Uppu |
| Posted: Wed Apr 01, 2009 7:31 am Post subject: Re: Unix/AIX Vs z/OS |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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| kevinf2349 wrote: |
| Gaya3 wrote: |
| Gemz wrote: |
Hi All,
I had worked on MQ and MB in Unix/AIX OS.
My new project will be in z/OS Mainframe system. I don't have any idea about this z/OS Mainframe system.
I like to know about how is this z/OS system differ from Unix/AIX in MQ Concepts wise.
Pls share your thoughts.....
-GemZ |
MQ Concepts are same,
But only OS is different. |
.....and the method of install, and the way you create queue managers, and the logging, and the security, and the trigger monitor, and the .....
I guess it is so much 'the same' that they wrote those additional manuals for the good of their health!
Now seriously, from a pure programmer usage standpoint, it is very similar....just remember that the default for syncpoint changes on z/OS.
For the MQ Administrator there are definately differences. Mostly in the way you create queue managers, but administration of the actual objects are pretty much the same. |
I was maintaining the QMgr objects via ISPF panels but never get a chance to create a QMgr. Do we need to have access to command console to create the Qmgr and it needs to be created in command console, correct?.
I know I need to look into the z/os sys admin guide for this. Just checking with you guys.
Thanks. |
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| bruce2359 |
| Posted: Wed Apr 01, 2009 7:35 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| Do we need to have access to command console to create the Qmgr and it needs to be created in command console, correct? |
No. This is where it's very different on z/OS. Your systems programmer (or someone with sufficient RACF authority) will need to create pageset datasets, bootstrap datasets, qmgr JCL, channel-initiatior JCL; update the subsystem name table (SSN),...
Sorry, no crtmqm on z/OS.
Things are so different on z/OS that IBM has some z/OS-specific manuals, like: WMQ z/OS System Setup, and WMQ z/OS System Administration
_________________
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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| exerk |
| Posted: Wed Apr 01, 2009 1:06 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| bruce2359 wrote: |
| ...a queue is a queue, a channel is a channel... |
Although, to be pedantic, there is no analogue outside of z/OS of Group/Shared queues and Channels, which make WMQ on z/OS somewhat unique.
EDIT: ...and Listeners...
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys.
Last edited by exerk on Wed Apr 01, 2009 10:54 pm; edited 1 time in total |
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| gbaddeley |
| Posted: Wed Apr 01, 2009 5:05 pm Post subject: |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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After learning Windows and Unix, going to z/OS is like walking into a large dimly lit factory with lots of unfamiliar machines and tools. You need to drill a hole. Find a drill press and work out how to do what you need, then walk out thinking "I don't really need to know about all that other gear". None of the procedures you learnt to install or support MQ on Windows or Unix are of any use on z/OS. The MQSC exists in various obscure forms such as the IPSF panels, CSQUTIL, SDSF console commands, and MQ basically works the same (channels and queues), but everything else is completely diffferent. After many years I now know enough to be dangerous. I can actually follow what's going on in exits written in assembler. 
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Glenn |
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| bruce2359 |
| Posted: Wed Apr 01, 2009 5:22 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| The MQSC exists ... |
It's the same MQSC as in Win/UNIX. You can develop and test your WMQ-based applications on any platform, and with saveqmgr (win/UNIX) or CSQUTIL you can export MQSC. The MQSC things that are unique to z/OS WMQ are very few; and MQSC will fail a command if you are on the wrong platform.
Using a slightly different analogy, a friend said that walking from Windows/UNIX into z/OS is like walking from a childs playroom into a full-featured gym - lots of big, new, expensive and important, things to play with.
_________________
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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| Sam Uppu |
| Posted: Wed Apr 01, 2009 6:39 pm Post subject: |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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| Quote: |
| Using a slightly different analogy, a friend said that walking from Windows/UNIX into z/OS is like walking from a childs playroom into a full-featured gym - lots of big, new, expensive and important, things to play with. |
Good one... I think I also feel the same now. |
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| vol |
| Posted: Wed Apr 01, 2009 9:52 pm Post subject: |
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Acolyte
Joined: 01 Feb 2009
Posts: 69
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| When you go into the gym, don't forget to pick up your attitude at the door... |
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