What were the common commands and operations in R/390?

Common operations included starting and stopping the emulator, managing virtual devices, and monitoring system resources. The exact syntax would depend on the specific commands and utilities provided with R/390. Configuration files were used to define the emulated mainframe environment.

What interfaces and configuration methods were used?

R/390 likely used a command-line interface (CLI) for most administrative tasks. The specific commands would be unique to the product. Configuration files would define the emulated hardware and software environment. The product would have included utilities for managing virtual devices.

What were the main components of the R/390 architecture?

The architecture of R/390 included components such as the emulator core, device emulators (e.g., for disks, tapes), and a system console. These components would communicate internally to simulate the mainframe environment. The emulator core would handle the execution of z/OS instructions.

What network protocols and ports did R/390 use?

R/390 likely used TCP/IP for network communication, allowing the emulated mainframe to interact with other systems. The specific ports used would depend on the services being emulated. The product would have included network configuration options to define network settings.

How did R/390 provide business value?

R/390 offered a way to run mainframe applications on less expensive hardware. This could reduce the overall cost of ownership for development and testing environments. It provided a platform for modernizing mainframe applications.

How did R/390 support application portability?

By emulating a mainframe environment, R/390 allowed organizations to continue using their existing mainframe applications. This reduced the need to rewrite or re-architect these applications. It also allowed for easier migration to new platforms.

How did R/390 support application testing?

R/390 could be used to test mainframe applications before deploying them to a production mainframe environment. This helped to reduce the risk of errors and improve the quality of the applications. It provided a safe environment for testing.

How did R/390 support training and education?

R/390 provided a platform for training and education on mainframe technologies. This allowed organizations to train their staff on mainframe concepts without requiring access to a physical mainframe. It supported skills development.

What authentication methods did R/390 support?

The specific security features of R/390 would depend on the version. It likely supported authentication methods such as user IDs and passwords. Access control would be managed through the AIX operating system.

How was access control managed in R/390?

R/390 would rely on the security features of the underlying AIX operating system. This would include user and group management, file permissions, and network security configurations. The product itself would not have provided extensive security features.

What audit and logging capabilities were available?

R/390 would likely have included logging capabilities to record system events and user activity. These logs could be used for auditing and troubleshooting. The specific logging features would depend on the version.

What encryption methods were supported?

R/390 would not have provided built-in encryption features. Any encryption would have been handled by the underlying AIX operating system or by the applications running within the emulated environment. Network traffic could be secured using standard protocols.

What administrative interfaces were available?

Administrative tasks would be performed through the AIX command-line interface (CLI). The specific commands for managing the emulator would be unique to R/390. Configuration files would be used to define the emulated environment.

How was user management handled?

User management would be handled through the AIX operating system. This would include creating, modifying, and deleting user accounts. R/390 would integrate with the AIX user management system.

What were the main configuration parameters?

Configuration parameters would be set through configuration files. These files would define the emulated hardware, software, and network settings. The specific parameters would depend on the version of R/390.

What monitoring and logging capabilities existed?

R/390 would likely have included logging capabilities to monitor system events and performance. These logs could be used to troubleshoot issues and optimize performance. The specific monitoring features would depend on the version.

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R/390

Name: R/390
Availability: InStock

IBM Not Supported z/OS

Operating System UNIX and Windows Emulation

Vendor

IBM

Product Overview

The R/390 architecture consisted of several key components. The emulator core was responsible for interpreting and executing z/OS instructions. Device emulators, such as those for disks and tapes, simulated the behavior of mainframe hardware.

A system console provided a means for interacting with the emulated environment. Communication between components was primarily internal, with the emulator core coordinating the activities of the device emulators. Network communication used TCP/IP.

Configuration was managed through text-based configuration files. The AIX operating system provided the underlying infrastructure for user management and security. R/390 is not supported.

Explore modern alternatives like z/VM or cloud-based solutions.

Frequently Asked Questions

What is R/390?

R/390 emulates a System z mainframe on an IBM RS/6000 server running AIX. It allows users to run z/OS applications on a different hardware platform. This emulation provides a way to test and develop mainframe applications without requiring dedicated mainframe hardware.

What hardware and operating system did R/390 run on?

R/390 was designed to run on IBM RS/6000 servers. The specific AIX version supported would be detailed in the product documentation. The product's architecture allowed for the execution of z/OS workloads within the AIX environment.

What were the main benefits of using R/390?

R/390 provided a way to run z/OS applications on a non-mainframe platform, potentially reducing hardware costs for development and testing. It allowed for the reuse of existing mainframe application code in a different environment. This could streamline development workflows.

Is R/390 still available?

R/390 was discontinued, so it is no longer available for purchase or support. Users should consider modern emulation or virtualization solutions that offer similar functionality. These solutions provide better performance and compatibility.

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R/390

Product Overview

Frequently Asked Questions

What is R/390?

What hardware and operating system did R/390 run on?

What were the main benefits of using R/390?

Is R/390 still available?

What were the common commands and operations in R/390?

What interfaces and configuration methods were used?

What were the main components of the R/390 architecture?

What network protocols and ports did R/390 use?

How did R/390 provide business value?

How did R/390 support application portability?

How did R/390 support application testing?

How did R/390 support training and education?

What authentication methods did R/390 support?

How was access control managed in R/390?

What audit and logging capabilities were available?

What encryption methods were supported?

What administrative interfaces were available?

How was user management handled?

What were the main configuration parameters?

What monitoring and logging capabilities existed?

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