Can Zowe Bring Young Developers to the Z

Are you ever frustrated by the Z? As powerful as it gets mainframes remain a difficult nut to crack, particularly for newcomers who have grown up with easier technologies. Even Linux on Z is not as simple or straightforward as on other platforms. This poses a problem for Z-based shops that are scrambling to replace retiring mainframers.

IBM – Jon Simon/Feature Photo Service

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Certainly other organizations, mainly mainframe ISVs like Compuware and Syncsort, have succeeded in extending the GUI deeper into the Z but that alone is not enough. It remains too difficult for newcomers to take their newly acquired computer talents and readily apply them to the mainframe. Maybe Zowe can change this.

And here’s how:  Recent surveys show that flexibility, agility and speed are key.  Single platforms are out, multi-platforms, and multi-clouds are in. IBM’s reply: let’s bring things together with the announcement of Zowe, pronounced like joey starting with a z. Zowe represents the first open source framework for z/OS. As such it provides solutions for development and operations teams to securely manage, control, script, and develop on the mainframe like any other cloud platform. Launched with partners CA Technologies and Rocket Software along with the support of the Open Mainframe Project, the goal is to drive innovation for the community of next-generation mainframe developers and enable interoperability and scalability between products. Zowe promotes a faster team on-ramp to mainframe productivity, collaboration, knowledge sharing, and communication.

In short, IBM and partners are enabling users to access z/OS using a new open-source framework. Zowe, more than anything before, brings together generations of systems that were not designed to handle global networks of sensors and devices. Now, decades since IBM brought Linux to the mainframe IBM, CA, and Rocket Software are introducing Zowe, a new open-source software framework that bridges the divide between modern challenges like IoT and the mainframe.

Zowe has four components:

  1. Zowe APIs: z/OS has a set of Representational State Transfer (REST) operating system APIs. These are made available by the z/OS Management Facility (z/OSMF). Zowe uses these REST APIs to submit jobs, work with the Job Entry Subsystem (JES) queue, and manipulate data sets. Zowe Explorers are visual representations of these APIs that are wrapped in the Zowe web UI application. Zowe Explorers create an extensible z/OS framework that provides new z/OS REST services to enterprise tools and DevOps processes.
  2. Zowe API Mediation Layer: This layer has several key components, including that API Gateway built using Netflix Zuul and Spring Boot technology to forward API requests to the appropriate corresponding service through the micro-service endpoint UI and the REST API Catalog. This publishes APIs and their associated documentation in a service catalog. There also is a Discovery Service built on Eureka and Spring Boot technology, acting as the central point in the API Gateway. It accepts announcements of REST services while providing a repository for active services.
  3. Zowe Web UI: Named zLUX, the web UI modernizes and simplifies working on the mainframe and allows the user to create modern applications. This is what will enable non-mainframers to work productively on the mainframe. The UI works with the underlying REST APIs for data, jobs, and subsystems, and presents the information in a full-screen mode compared to the command-line interface.
  4. Zowe Command Line Interface (CLI): Allows users to interact with z/OS from a variety of other platforms, such as cloud or distributed systems, submit jobs, issue Time Sharing Option (TSO) and z/OS console commands, integrate z/OS actions into scripts, and produce responses as JSON documents. With this extensible and scriptable interface, you can tie in mainframes to the latest distributed DevOps pipelines and build in automation.

The point of all this is to enable any developer to manage, control, script, and develop on the mainframe like any other cloud platform. Additionally, Zowe allows teams to use the same familiar, industry-standard, open-source tools they already know to access mainframe resources and services too.

The mainframe may be older than many of the programmers IBM hopes Zowe will attract. But it opens new possibilities for next generation applications and for mainframe shops desperately needing new mission-critical applications for which customers are clamoring. This should radically reduce the learning curve for the next generation while making experienced professionals more efficient. Start your free Zowe trial here. BTW, Zowe’s code will be made available under the open-source Eclipse Public License 2.0.

DancingDinosaur is Alan Radding, a veteran information technology analyst, writer, and ghost-writer. Follow DancingDinosaur on Twitter, @mainframeblog. See more of his work at and here.


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