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z/OS

Show me everything on IBM System z and mainframe systems

- z/OS is the computer operating system for IBM's zSeries 900 (z900) line of large (mainframe) servers. z/OS is a renamed and upgraded version of OS/390, which in turn evolved from the MVS operating system. IBM's renamed servers and operating systems reflect a strategy to realign its products more closely with the Internet and its own e-business initiatives.

z/OS is described as an extremely scalable and secure high-performance operating system based on the 64-bit z/Architecture. Like its predecessor, OS/390, z/OS lays claim to being highly reliable for running mission-critical applications. The operating system supports Web- and Java-based applications.

Learn more about IBM System z and mainframe systems

Mainframe Management: The modern mainframe: This isn't your gramps' Big Iron. Mainframe management has evolved dramatically over the past few years.
Roadmap to mainframe application modernization: This tip outlines a modernization path for business-critical applications in an existing mainframe environment.
Top five mainframe tips: Data center pros are asking questions about the expanding role mainframes play in the business.
Mainframe Management: The modern mainframe: This isn't your gramps' Big Iron. Mainframe management has evolved dramatically over the past few years.
Using CICS dump tables to manage problems in online systems: The CICS dump table feature can be useful for diagnosing and managing problems in online systems when the information you need isn't available through default channels.
High mainframe software costs may lead to platform's demise: Are mainframe software costs too high or does software productivity and reduced labor costs lead to lower mainframe total cost of ownership (TCO)?
Manage CICS workloads with transaction classes: Using transaction classes is a great way to manage CICS workloads that come in unpredictable increments. Learn how to use transaction classes and get examples in this tip.
Run CICS in batch to beat a shrinking batch window: As batch windows are getting shorter, it becomes harder to run traditional VSAM-based CICS systems. Try running CICS in batch as a low-cost solution.

LAST UPDATED:

03 Nov 2005

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