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TmaxSoft OpenFrame is a popular mainframe rehosting solution that makes it easy to lift your existing mainframe assets and shift them to Microsoft Azure. Lift-and-shift is the no-code approach to quickly migrating existing applications as-is to a mainframe emulation environment on Azure. By moving some or all of your mainframe workloads to the cloud, you can modernize your infrastructure, benefit from the scale of Azure, and leave behind many of the drawbacks associated with mainframes.

This document explains how to set up an OpenFrame environment on Azure suitable for development, demos, testing, or production workloads. As Figure 1 shows, OpenFrame includes multiple components that create the mainframe emulation environment on Azure. For example, OpenFrame online services replace the mainframe middleware such as IBM Customer Information Control System (CICS), and OpenFrame Batch, with its TJES component, replaces the IBM mainframe’s Job Entry Subsystem (JES).

OpenFrame works with any relational database, including Oracle Database, Microsoft SQL Server, IBM Db2, and MySQL. This installation of OpenFrame uses the TmaxSoft Tibero relational database. Both OpenFrame and Tibero run on a Linux operating system. This deployment installs CentOS 7.3, although you can use other supported Linux distributions, and it installs the OpenFrame application server and the Tibero database on one virtual machine (VM).​