Mainframes, MVS, zOS and Related Languages Support Forums Help & Support Forum for and by Mainframe Users 2013-07-26T12:53:02+00:00 http://www.ibm-mainframes.com/feed.php?f=47 2013-07-26T12:53:02+00:00 2013-07-26T12:53:02+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=256&p=622#p622 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: We made a Century!!]]> Making Century is a history now -- We made Much More than a Double Century!

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Most users ever online was 250 on 26 Jul 2013
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What are you waiting for -- come get along with this busy community to clear, debate and discuss your doubts on IBM Mainframes, MVS, zOS and related Languages.

Statistics: Posted by Anuj Dhawan — Fri Jul 26, 2013 12:53 pm


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2013-07-26T04:48:11+00:00 2013-07-26T04:48:11+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=295&p=619#p619 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • "Report This Post" is activated.]]>
The "Report This Post Button" can be found as the first button with exclamation sign ("!"), at bottom right of any post. The pictorial representation is shown below:

Statistics: Posted by Anuj Dhawan — Fri Jul 26, 2013 4:48 am


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2013-07-24T08:04:17+00:00 2013-07-24T08:04:17+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=253&p=582#p582 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Installing zLinux.]]> Statistics: Posted by Manoj — Wed Jul 24, 2013 8:04 am


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2013-07-22T19:16:12+00:00 2013-07-22T19:16:12+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=253&p=556#p556 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Installing zLinux.]]> Running Linux on IBM System z9 and zSeries under z/VM.

They bang start from Chapter 1 itself.

Statistics: Posted by Anuj Dhawan — Mon Jul 22, 2013 7:16 pm


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2013-07-19T19:11:01+00:00 2013-07-19T19:11:01+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=256&p=532#p532 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: We made a Century!!]]>
Today it is 165!!!

Statistics: Posted by Anuj Dhawan — Fri Jul 19, 2013 7:11 pm


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2013-07-19T06:18:32+00:00 2013-07-19T06:18:32+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=253&p=515#p515 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Installing zLinux.]]> Statistics: Posted by Manoj — Fri Jul 19, 2013 6:18 am


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2013-07-19T06:16:53+00:00 2013-07-19T06:16:53+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=254&p=514#p514 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Why DataSet restricted to 44 characters on zOS?]]>
I agree with your view, however, coming from windows-world makes you curious about such things.

Statistics: Posted by Manoj — Fri Jul 19, 2013 6:16 am


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2013-07-18T11:03:54+00:00 2013-07-18T11:03:54+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=254&p=510#p510 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Why DataSet restricted to 44 characters on zOS?]]>
Tape data set names are 17 characters because that is all the space available in the tape label header and that again goes back to System 360.

Rather than asking why, you would be far better off just learning -- and accepting -- the limitations as they exist. Unless you are a historian, the "why" does not matter since you cannot change the 44-character limit anyway.

Statistics: Posted by Robert Sample — Thu Jul 18, 2013 11:03 am


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2013-07-18T10:58:38+00:00 2013-07-18T10:58:38+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=253&p=509#p509 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Installing zLinux.]]> Statistics: Posted by Robert Sample — Thu Jul 18, 2013 10:58 am


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2013-07-18T05:35:38+00:00 2013-07-18T05:35:38+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=256&p=507#p507 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • We made a Century!!]]>

We got 121 users online Yesterday, on 17 Jul 2013 at 22:54. You can check that at the bottom of Board Index. This will be shown like this: "Most users ever online was 121 on 17 Jul 2013 22:54".

That's a great achievement.

Thanks for Liking and showing the trust in to the Labor we're putting in, much appreciate that,

Thanks,

Statistics: Posted by Anuj Dhawan — Thu Jul 18, 2013 5:35 am


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2013-07-18T05:05:24+00:00 2013-07-18T05:05:24+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=254&p=505#p505 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Why DataSet restricted to 44 characters on zOS?]]>
I was reading the evolution of z/OS from its primitive MVS OS and coming from Windows world, I need to ask, why is the data set name is restricted to only 44 characters? And why, for Tape Drive, label is of 17 characters and not more, at least 44 characters?

Hopefully, I don't bother too much.

Statistics: Posted by Manoj — Thu Jul 18, 2013 5:05 am


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2013-07-18T04:53:30+00:00 2013-07-18T04:53:30+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=253&p=504#p504 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Installing zLinux.]]>
Linux is an open-source version of the UNIX operating system - in other words, I've its flavors which I can install on my PC for free -- is the same applicable to zLinux?

It might be trivial to ask but for a novice like me - it's tough to understand, specially when I don't have System Level accesses at zOS.

Statistics: Posted by Manoj — Thu Jul 18, 2013 4:53 am


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2013-06-17T05:48:23+00:00 2013-06-17T05:48:23+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=164&p=230#p230 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • AJAX Chat is Installed!]]> AJAX Chat is Installed! Using this you can Chat with other registered members while you're logged in -- it's Fun when you don't to post a topic however, still want to convey some message to other user. Below is a handy link to AJAX Chat corner. You can also find it on the "Menu-Bar" adjacent to FAQ.


AJAX Chat


For the Curious minds: Ajax Chat is a high performance php-based chat server software for a live chat-room or -module on every php-based site.

Statistics: Posted by Anuj Dhawan — Mon Jun 17, 2013 5:48 am


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2013-06-16T14:58:13+00:00 2013-06-16T14:58:13+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=163&p=229#p229 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Arcade Games are Installed!]]> Arcade Games are Installed! So have Fun while You Learn! :)

There are currently 25 games installed. Have a look: Here is a list of Games - click on Arcade below to get started:

Arcade

And don't Forget to Submit Your highest Score!

Statistics: Posted by Anuj Dhawan — Sun Jun 16, 2013 2:58 pm


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2013-06-13T06:20:07+00:00 2013-06-13T06:20:07+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=118&p=208#p208 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Re: Mobile View.]]>

Statistics: Posted by Admin — Thu Jun 13, 2013 6:20 am


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2013-06-08T19:58:59+00:00 2013-06-08T19:58:59+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=118&p=157#p157 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • Mobile View.]]>
Please note that for members who prefer to view our site in 'mobile style' on a computer, we have an option to switch to 'Mobile View' while on computer also. You can find this option at the bottom of the index page just above the donation chest icon.

Please Note - in mobile-view, as of now, "basic blue color scheme" is the only standard theme at the moment - so you might see "green changing to blue" while in 'mobile-view' or seeing the site on a mobile.

Enjoy! :)

Statistics: Posted by Anuj Dhawan — Sat Jun 08, 2013 7:58 pm


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2013-05-24T06:13:51+00:00 2013-05-24T06:13:51+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=49&p=49#p49 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • What is USS?]]>
Many critical z/OS functions and services depend on UNIX System Services and would never be able to function otherwise, including the z/OS Management Facility, XML parsing and generation services, OpenSSH, the IBM HTTP Server for z/OS, the z/OS SDK for Java, and some z/OS PKI services as examples.

UNIX System Services allows UNIX applications from other platforms to run on IBM System z mainframes running z/OS. In many cases only a recompile is necessary, although additional effort may be advisable for z/OS integration (such as SMP/E installation support). While USS supports ASCII and Unicode, and there's no technical requirement to modify ASCII and Unicode UNIX applications, many z/OS users often prefer EBCDIC support in their applications including those running in USS. Consequently USS provides application and administrator services for converting to/from EBCDIC. Programs running under USS have full, secure access to the other internal functions of z/OS. Database access (DB2 via Call Attach) is one example of how USS can access services found elsewhere in z/OS. Naturally such programs cannot be ported to non-mainframe platforms without rewriting if they use these z/OS-specific services. Conversely, if a program adheres to UNIX® standards such as POSIX and ANSI C, it will be easier to move them between different UNIX® operating systems including z/OS UNIX®.

Here is good explanation by IBM: http://www-03.ibm.com/systems/z/os/zos/features/unix/

Statistics: Posted by Anuj Dhawan — Fri May 24, 2013 6:13 am


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2013-05-24T06:13:10+00:00 2013-05-24T06:13:10+00:00 http://www.ibm-mainframes.com/viewtopic.php?t=48&p=48#p48 <![CDATA[zLinux & USS and Operating Systems on Mainframes. • What is zLinux?]]> Image

Linux for System z, also known as Linux/390, is the native port of Linux to the S/390 and IBM System z hardware platforms. It runs on the bare hardware, in an LPAR and as a VM, or z/VM guest.

Mainframe Linux can boost application up time and reduce support costs. But users needs to act carefully when choosing which applications to move to the open-source operating system and when training staff in the required skills. One factor for Linux on the mainframe can be the low cost of licensing Linux and/or perhaps the fact that users can modify it and rely on a community of developers to fix bugs, however, the statistics says that - the big draw is the ability to combine Linux with the mainframe's proven reliability, speed and management tools to drive down the cost of running critical applications.

Well establish business owner say that they're not interested in just getting the least expensive thing on the market instead they want something that is reliable, functional and has great customer service.

LinuxVM.org is the official home of the Linux/390 project. The purpose of the project is to provide a central source of Linux/390 information and software, and to explore the possibilities of Linux and CP integration or inter-operation.

Statistics: Posted by Anuj Dhawan — Fri May 24, 2013 6:13 am


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