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OS/390 vs Z/OS

 
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mfjin
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Joined: 26 Apr 2003
Posts: 94
Topics: 17

PostPosted: Sat Feb 07, 2004 5:51 am    Post subject: OS/390 vs Z/OS Reply with quote

Folks,
Can anyone explain or post a link to the differences between the two operating systems? A search in this forum did not yield any results. There are many documents on the net that talk about migrating from os/390 to z/os. But I could not get the differences (at a high level and not intricate differences). The link to z/os and os/390 in this sites main page talks a lot about them but I could not find any clear difference between them ( or probably I was too daft to grasp it).
I want to know what is it that z/os has that os/390 does not . ??? What do you lose out on if you do not migrate to z/os?

Cheers...!!!
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Frank Yaeger
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Joined: 02 Dec 2002
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Location: San Jose

PostPosted: Sat Feb 07, 2004 11:30 am    Post subject: Reply with quote

These links might help, especially the first one which discusses what was new in the first version of z/OS vs OS/390:

http://www-1.ibm.com/servers/eserver/zseries/zos/overview/zosnew11.html

http://www-1.ibm.com/servers/eserver/zseries/zos/overview/zosnew12.html

http://www-1.ibm.com/servers/eserver/zseries/zos/overview/zosnew13.html

http://www-1.ibm.com/servers/eserver/zseries/zos/overview/zosnew.html

http://www-1.ibm.com/servers/eserver/zseries/zos/zos_sods.html
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Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort
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kolusu
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Joined: 26 Nov 2002
Posts: 12378
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PostPosted: Mon Feb 09, 2004 5:51 am    Post subject: Reply with quote

Mfjin,

The biggest difference between Z/OS and OS/390 is the addressing .

  • Z/OS supports 64bit addressing(OS/390 is 32 bit only). Some of of the benefits of Z/OS are HiperSockets, Intelligent Resource Director, 64-bit real storage support, subcapacity pricing, Managed System Infrastructure, and so much more . . .

  • Z/OS has Unicode conversions built in to the hardware. So, Java and other languages that use Unicode run very quickly.

  • Applications have had major enhancements. Compilers are better.

  • Enhanced for web enabling applications.

  • The next version of DB2
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mfjin
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PostPosted: Mon Feb 09, 2004 1:28 pm    Post subject: Reply with quote

Thank you Kolusu. That broad overview was very helpful. Thank you very much.
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