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[umakanta]

What is diffrence between OS/390 & Z/OS ????????

[kolusu]

Umakanta,

Please Use meaningful topic titles. Please do not post topics with "Need help" as title.

Coming to your question. Here is a brief explanation.

Z/OS supports the 64-bit real strorage which will Improve performance, throughput, and scalability characteristics. 64-bit storage support (z/Architecture) eliminates expanded storage and reduces or eliminates paging, and it also allows the consolidation of LPARs, reducing system overhead.

Enhancements to the Intelligent Resource Director (IRD) and the Workload Manager (WLM). The Intelligent Resource Director provides a new, dynamic facility for managing CPU consumption, Channel Paths, and Channel Subsystem Priorities across multiple system images (LPARs), based on workload priorities. Workload Manager is extended to work across LPARs, and has had a number of self-optimizing advances in workload management.

Check this link to see What's new in z/OS

http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/books/e0z2a131/1.0?DT=20021023142359

Hope this helps...

Cheers

Kolusu
_________________
Kolusu
www.linkedin.com/in/kolusu