Search results
The term mainframe must be divided into two meanings: (1) the hardware (Z-Series chip) and (2) the operating systems supported by the Z-Series chip (z/VM, z/OS, z/VSE, Linux). Mainframe Hardware: Z-Series CPU chips: Supports z/VM, z/OS, z/VSE, Linux operating systems, and open-source software.
This hardware course introduces you to one model of IBM® mainframe computer, the IBM System z9TM Enterprise Class, to help you learn about the physical environment that is typical for mainframes, and to introduce you to some of the many peripheral devices used in the mainframe environment. Time to complete: 10 - 15 minutes. Mainframe terms.
Searches related to What is a tailgate in mainframe hardware?
Introduction to the New Mainframe z/OS Basics Mike Ebbers John Kettner Wayne O’Brien Bill Ogden Basic mainframe concepts, including usage and architecture z/OS fundamentals for students and beginners Mainframe hardware and peripheral devices Front cover
- 6MB
- 792
www.precisely.com · blog · mainframeMainframes for Dummies: What Non-Technical Folks Should Know ...
Feb 12, 2020 · Modern mainframes are about the size of a refrigerator – which makes them not very much larger than any other type of computer that you would find in a data center. Today’s mainframes also boast state-of-the-art hardware. They are powered by modern processors, not vacuum tubes.
- Overview
- Migrating legacy systems to Azure
- Mainframe and midrange concepts
- High-level architectural types
- Next steps
- Related resources
Mainframe and midrange hardware is composed of a family of systems from various vendors (all with a history and goal of high performance, high throughput, and sometimes high availability). These systems were often scale-up and monolithic, meaning they were a single, large frame with multiple processing units, shared memory, and shared storage.
On the application side, programs were often written in one of two flavors: either transactional or batch. In both cases, there were a variety of programming languages that were used, including COBOL, PL/I, Natural, Fortran, REXX, and so on. Despite the age and complexity of these systems, there are many migration pathways to Azure.
In many cases, mainframe, midrange, and other server-based workloads can be replicated in Azure with little to no loss of functionality. Sometimes users do not notice changes in their underlying systems. In other situations, there are options for refactoring and re-engineering the legacy solution into an architecture that is in alignment with the c...
Mainframes
Mainframes were designed as scale-up servers to run high-volume online transactions and batch processing in the late 1950s. As such, mainframes have software for online transaction forms (sometimes called green screens) and high-performance I/O systems, for processing the batch runs. Mainframes have a reputation for high reliability and availability, in addition to their ability to run online and batch jobs. Mainframe storage Part of demystifying mainframes involves decoding various overlapping terms. For example, central storage, real memory, real storage, and main storage generally all refer to storage that is attached directly to the mainframe processor. Mainframe hardware includes processors and many other devices, such as direct-access storage devices (DASDs), magnetic tape drives, and several types of user consoles. Tapes and DASDs are used for system functions and by user programs. Types of physical storage: •Central storage. Located directly on the mainframe processor, it's also known as processor storage or real storage. •Auxiliary storage. Located separately from the mainframe, it includes storage on DASDs, which is also known as paging storage. Mainframe storage Part of demystifying mainframes involves decoding various overlapping terms. For example, central storage, real memory, real storage, and main storage generally all refer to storage that is attached directly to the mainframe processor. Mainframe hardware includes processors and many other devices, such as direct-access storage devices (DASDs), magnetic tape drives, and several types of user consoles. Tapes and DASDs are used for system functions and by user programs. Types of physical storage: •Central storage. Located directly on the mainframe processor, it's also known as processor storage or real storage. •Auxiliary storage. Located separately from the mainframe, it includes storage on DASDs, which is also known as paging storage.
Rehost
Often referred to as a lift-and-shift migration, this option doesn't require code changes. You can use it to quickly migrate your existing applications to Azure. Each application is migrated as is, to reap the benefits of the cloud (without the risk and cost that are associated with code changes). Rehost architectures •Stromasys Charon-SSP Solaris emulator on Azure VMs •09/09/2020 •4 min read •Migrate IBM mainframe apps to Azure with TmaxSoft OpenFrame •09/18/2020 •5 min read •Unisys ClearPath Forward mainframe rehost to Azure using Unisys virtualization •06/28/2021 •6 min read The architecture described in this article shows how to use virtualization technologies from Microsoft partner Unisys with a legacy Unisys CPF Libra mainframe. •Using LzLabs Software Defined Mainframe (SDM) in an Azure VM deployment •06/28/2021 •7 min read An approach for rehosting mainframe legacy applications in Azure using the LzLabs Software Defined Mainframe platform. Rehost architectures •Stromasys Charon-SSP Solaris emulator on Azure VMs •09/09/2020 •4 min read •Migrate IBM mainframe apps to Azure with TmaxSoft OpenFrame •09/18/2020 •5 min read •Unisys ClearPath Forward mainframe rehost to Azure using Unisys virtualization •06/28/2021 •6 min read The architecture described in this article shows how to use virtualization technologies from Microsoft partner Unisys with a legacy Unisys CPF Libra mainframe. •Using LzLabs Software Defined Mainframe (SDM) in an Azure VM deployment •06/28/2021 •7 min read An approach for rehosting mainframe legacy applications in Azure using the LzLabs Software Defined Mainframe platform.
•For more information, please contact legacy2azure@microsoft.com.
•See the Microsoft Azure Well-Architected Framework.
The white papers, blogs, webinars, and other resources are available to help you on your journey, to understand the pathways to migrate legacy systems into Azure:
A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.
People also ask
What is mainframe hardware?
What are the components of a mainframe?
What does the term mainframe mean?
What is a mainframe computer used for?
Jan 19, 2023 · A mainframe is defined as a large, powerful computer typically used for complex calculations and data processing tasks. It can connect to multiple end clients simultaneously so that several users can access different applications and processes running on the mainframe concurrently without impacting performance or security.
