A real-world example of how Treehouse Software is helping enterprises with their Mainframe-to-Cloud / LUW / Open Systems data migration and replication initiatives…

by Joseph Brady, Director of Business Development for Treehouse Software

Many medium to large size companies are still investing in new mainframe systems, because they have been relying on them for decades to handle mission critical data transaction processing. For these companies, their mainframes are deeply entrenched, and have been rock-solid reliable over the years, allowing many users and applications to simultaneously access the same data without interfering with each other. Mainframes also perform large-scale and extremely fast transaction processing (thousands of transactions per second). Chances are, most transactions for which you use your debit or credit cards have a mainframe processing the data in the background.

There have been countless predictions of the demise of the mainframe over the years, but they have been proven wrong every time, and there’s no sign of extinction any time soon. Mainframes remain a vital part of IT infrastructures used by companies spanning a variety of industries around the world, including banking, insurance, healthcare, government, aviation, and retail.

Today, most companies that have their enterprise data stored on a mainframe system are discovering the advantages of newer cloud and open systems databases and services, including instantaneous global database deployments (e.g., Amazon Aurora), economics to scale, high availability, elasticity, security, testing at scale, disaster recovery, etc. Consequently, these companies are looking for an automated solution that allows real-time data replication between the two environments, and many are turning to Treehouse Software.


Customer Scenario: A Look at a Large Airline’s Mainframe Data Replication Project

Treehouse Software has a major airline customer that is a long-time user of Software AG’s Adabas database on their mainframe system. Their desire was to move their data to more modern applications off of the mainframe. However, their mainframe contains vital airline maintenance and parts data that must always be highly available, so rather than performing a complete migration from the mainframe, the customer decided to utilize a data warehouse with a requirement of real-time data replication. This allows the mainframe legacy teams to maintain existing applications, while the modernization team develops applications on the newly created RDBMS. All teams determined that tcVISION real-time mainframe data replication was the perfect fit for meeting their goals.

How tcVISION Addressed the Customer Needs...

The high-level environment for the airline customer using tcVISION for data replication looks like this…


  • Adabas: Mainframe data source containing business critical information replicated to the RDBMS.
  • Oracle: Open Platform RDBMS chosen by customer as replication target for both data warehouse and modernization project. The tcVISION Manager also uses Oracle as a repository for the metadata (field mappings).
  • tcVISION Manager: Software component deployed on both source and target systems. It is responsible for provisioning resources for:
    • Processing scripts
    • Metadata import
    • Scheduling
  • tcSCRIPT: Software component deployed on both source and target systems. It works in conjunction with the tcVISION Manager to:
    • Perform initial load of Adabas into Oracle
    • Ongoing near realtime CDC (Change Data Capture) and replication from Adabas to Oracle
    • tcSCRIPT processes data from:
      • Direct from the DBMS (initial load) or from DBMS extracts
      • Adabas Protection log (PLOG)
  • tcVISION Control Board: Software component deployed on a Windows machine which provides graphical user interface for a single point of control to administer the tcVISION environment:
    • Metadata import, creates metadata rules governing relationship between mainframe and open platform data structures
    • Replication rule maintenance
    • DDL creation
    • Creation of ETL and replication processes
    • Start, stop, and schedule replication processes

Customer’s Technical Requirement for tcVISION

The airline requires that the replication solution must support online and batch Adabas transactions and provide data replication between Adabas and Oracle. Additionally, their large databases contain millions of rows (e.g., > 50 million) that must be supported, as well as support for database change audit requirements (datetime and type of operation), transaction management, and notification of exception events.

There must also be support for configuration management between development, QA, and production.

Finally, the solution must address hardware and software failures on the mainframe, Linux, and database nodes.

Customer Outcomes

All requirements were met by tcVISION, which led to a successful project implementation.  Here is a look at the customer outcomes and benefits:

Business Outcome Customer Benefit
Data warehouse is always in sync with Adabas using tcVISION data replication Improved timeliness and reliability of reporting data
Reduced usage of mainframe MIPS Reduced cost
All data required for modernization project was successfully replicated to target environment Increased business efficiently and agility

Many more mainframe data migration and replication customer case studies can be read on the Treehouse Software Website.


Contact Treehouse Software for a Demo Today…

No matter where you want your mainframe data to go – the cloud, open systems, or any LUW target – tcVISION from Treehouse Software is your answer. 


Just fill out the Treehouse Software Product Demonstration Request Form and a Treehouse representative will contact you to set up a time for your online tcVISION demonstration.

Further reading: AWS Partner Network (APN) Blog: Real-Time Mainframe Data Replication to AWS with tcVISION from Treehouse Software

Treehouse Software Customer Successes: Real-time, Bi-directional Data Synchronization Between Mainframe, Cloud, LUW, and Open Systems


Treehouse Software’s customer base includes many large companies, universities, and government organizations located in the United States and worldwide. Read about some of our Data Integration and Replication Customer Case Studies (PDF Documents) using tcVISION from the following links:

Many more mainframe data migration and replication customer case studies can be read on the Treehouse Software Website.


Contact Treehouse Software for a Demo Today…

Just fill out the Treehouse Software Product Demonstration Request Form and a Treehouse representative will contact you to set up a time for your online tcVISION demonstration.

Cloud Infrastructure Monitoring: Finding Issues and Solving Problems With Amazon CloudWatch

by Joseph Brady, Director of Business Development for Treehouse Software

At Treehouse Software, we specialize in helping customers’ legacy mainframe environment continue while replicating their data – in real time and bi-directionally – to an impressive variety of newer Cloud, LUW, and Open Systems databases. However, once “in the Cloud”, customers need the same visibility and understanding of what is happening with their data as they have in their on-premises data centers.

Unlike a traditional data center, with the AWS infrastructure environment, customers pay only for what they use, and the company is charged only for resource utilization.  Users can bring up EC2 virtual Windows or Linux instances for any length of time. For example, if the mainframe database bulk loads only take an hour to complete, the tcVISION EC2 instances can be brought up for the two hours needed, and shut down when the processing is finished.  AWS EC2 instances can be dynamically stopped and restarted while retaining its data on AWS Elastic Block Storage. This way, the business pays only for what is needed and the instance sizes (CPU, memory, and I/O bandwidth) can be optimized for the required mainframe data migration, or data replication process.

AWS resources, such as EC2 instances, storage, and databases can be rapidly provisioned and de-provisioned.  The allows customers to approach the architecture with an agile mind set.

Cloud Infrastructure Monitoring Made Easy…

This blog gives a high-level overview at Amazon CloudWatch, a Cloud infrastructure monitoring service that gives developers, system operators, site reliability engineers (SRE), and IT managers actionable insights to monitor applications, understand and respond to system-wide performance changes, optimize resource utilization, and obtain a unified view of operational health.


CloudWatch collects monitoring and operational data in the form of logs, metrics, and events, providing you with a unified view of AWS resources, applications and services that run on AWS, and on-premises servers. You can use CloudWatch to set high resolution alarms, visualize logs and metrics side by side, take automated actions, troubleshoot issues, and discover insights to optimize your applications, and ensure they are running smoothly.

Some customers are satisfied with a basic monitoring that polls every five minutes, while others need more detailed monitoring and can choose polls that occur every minute.

Observing, Reporting, Alerting, and Acting

Amazon CloudWatch allows customers to record metrics for EC2 and other Amazon Cloud Services (e.g., EBS (Elastic Block Storage), S3 (Simple Service Storage), etc.) and display them in a graph on a monitoring dashboard. This provides visual notifications of what is going on, such as CPU per server, query time, number of transactions, and network usage.

Given the dynamic nature of AWS resources, proactive measures including the dynamic re-sizing of infrastructure resources can be automatically initiated. Amazon CloudWatch alarms can be sent to the customer, such as a warning that CPU usage is too high, and as a result, an auto scale trigger can be set up to launch another EC2 instance to address the load. Additionally, customers can set alarms to recover, reboot, or shut down EC2 instances if something out of the ordinary happens.

A shift from looking for failures, to finding answers…


Is your mission critical mainframe data residing on IBM Db2, IBM VSAM, IBM IMS/DB, Software AG Adabas, CA IDMS, CA Datacom, or even sequential files? Do you want to move that data to the Cloud?

Read More About tcVISION on the AWS Partner Network Blog…

Read More: AWS Partner Network (APN) Blog, “Real-Time Mainframe Data Replication to AWS with tcVISION from Treehouse Software”

Contact Treehouse Software for a Demo Today…

Just fill out the Treehouse Software Product Demonstration Request Form and a Treehouse representative will contact you to set up a time for your online tcVISION demonstration.

STAY AND GO… AT THE SAME TIME! Incrementally Replicate Your Mainframe Data to the Cloud and Other Modern Systems While Keeping Both Sides Synchronized

Is your mission critical mainframe data residing on IBM Db2, IBM VSAM, IBM IMS/DB, Software AG Adabas, CA IDMS, CA Datacom, or even sequential files? Are you looking for a solution that allows your legacy mainframe environment to continue while replicating data – in real time and bi-directionally – on a variety of newer Cloud, LUW, or Open Systems databases? Whether your enterprise wants to take advantage of the latest cloud services, such as analytics, artificial intelligence (AI), etc., or move your data to a variety of newer Cloud, LUW, or Open Systems databases, the transition doesn’t have to be a sudden big bang.


tcVISION: Enterprise ETL and Real-time and Bi-directional Data Replication Through Change Data Capture

The globalization of markets, the increase of data volumes, 24×7 operations, changing business conditions and high demand for up-to-date information require new data transfer and exchange solutions for heterogeneous IT architectures.

The tcVISION solution focuses on changed data capture (CDC) when transferring information between mainframe data sources and modern databases and applications. Through an innovative technology, changes occurring in any mainframe application data are tracked and captured, and then published to a variety of targets.

tcVISION allows bi-directional, real-time data synchronization of changes on either platform to be reflected on the other platform (e.g., a change to a PostgreSQL table is reflected back on mainframe). The customer can then modernize their application on the cloud, open systems, etc. without disrupting the existing critical work on the legacy system.

tcVISION – Supported Sources and Targets

tcVISION supports a vast array of integration scenarios throughout the enterprise, providing easy and fast data migration for mainframe application modernization projects and enabling bi-directional data replication between mainframe, Cloud, Linux, Unix, and Windows platforms. This innovative technology offers comprehensive abilities to identify and capture changes occurring in mainframe and relational databases, then publish the required information to an impressive variety of targets, both on-premise and Cloud-based.

View the Unequalled List of Environments Supported by tcVISION Here


Contact Treehouse Software for a Demo Today…

Just fill out the Treehouse Software Product Demonstration Request Form and a Treehouse representative will contact you to set up a time for your tcVISION demonstration. This will be a live, on-line demonstration that shows tcVISION replicating data from the mainframe to a Cloud target database.

Treehouse Software’s tcVISION on the AWS Marketplace… AWS Architectural Considerations and Challenges

Andy Jones, Senior Technical Representative for Treehouse Software recently gave a presentation at the Pittsburgh AWS User Group Meetup that explores our experiences in bringing the tcVISION Mainframe-to-AWS Data Replication Solution to the AWS Marketplace.  Andy discussed issues that had to be addressed, such as High Availability and AWS Availability Zones, Autoscaling, Security, creating the tcVISON AMIs, etc. Here is his presentation:

Additionally, Treehouse Software’s tcVISION is Featured on the AWS Partner Network Blog. Read the Blog Here.


Treehouse Software is an AWS Technology Partner and a global leader in providing real-time and bi-directional data replication between a variety of mainframe and non-mainframe sources, including (Mainframe – z/OS and VSE): VSAM, IMS, Db2 z/OS, Adabas, CA Datacom, and CA IDMS; and (Non-mainframe): AWS, Microsoft Azure, PostgreSQL, Oracle, Microsoft SQL Server, IBM Db2 LUW and Db2 BLU, IBM Informix, Kafka, MongoDB, Hadoop, SAP Hana, and more.

Contact us today to discuss your project!

Treehouse Software’s Mainframe-to-AWS Data Replication Solution is Featured on the AWS Partner Network Blog

“We are very excited about the APN blog showcasing tcVISION’s Mainframe-to-AWS capabilities to such a substantial and relevant audience. The AWS partner and customer base not only has access to our solution via the tcVISION AMI in the AWS Marketplace, they can now use the tcVISION blog as a valuable educational and marketing tool!”

– Joseph Brady, Director of Business Development and AWS Alliance Lead at Treehouse Software



Since 1982, Treehouse Software has been serving enterprises worldwide with industry-leading software products and outstanding technical support. Today, Treehouse Software is a global leader in providing data migration, replication, and integration solutions for the most complex and demanding heterogeneous environments, as well as feature-rich, accelerated-ROI offerings for information delivery, business intelligence and analytics, and application modernization.

U.S. Government Customers Can Now Use Treehouse Software’s tcVISION Mainframe Data Replication on the AWS GovCloud

Treehouse Software’s tcVISION Mainframe-to-AWS data replication product is now available in the AWS GovCloud (US) Region of the AWS Marketplace.

The AWS GovCloud (US) Region is designed to host sensitive data, regulated workloads, and address the most stringent U.S. government security and compliance requirements.

The AWS GovCloud (US) is available to government customers, organizations in government-regulated industries, and other private entities that meet AWS GovCloud (US) requirements.

AWS GovCloud (US) gives government customers and their partners the flexibility to architect secure cloud solutions that comply with: the FedRAMP High baseline, the DOJ’s Criminal Justice Information Systems (CJIS) Security Policy, U.S. International Traffic in Arms Regulations (ITAR), Export Administration Regulations (EAR), Department of Defense (DoD) Cloud Computing Security Requirements Guide (SRG) for Impact Levels 2, 4 and 5, FIPS 140-2, IRS-1075, and other compliance regimes.

From Personally Identifiable Information (PII), sensitive patient medical records, and financial data to law enforcement data, export controlled data and other forms of CUI, AWS GovCloud (US) Regions can help customers address compliance at every stage of their cloud journey.


The tcVISION Amazon Machine Images (AMIs) are available on the AWS Marketplace. A tcVISION AMI automatically sets up the product on the AWS Cloud and allows customers to use it with either backup/recovery mainframe files or Windows files, or to set up connectivity for real-time, on-premises mainframe data replication to AWS. An enterprise with mission critical data in a mainframe environment can rapidly deploy databases globally within minutes, and with minimal administration requirements. U.S Government sites can simply choose the region “AWS GovCloud (US)” under “Pricing Information” when choosing and AMI.


There are three versions of the tcVISION AMI on the AWS Marketplace, and #1 and #3 require two-week trial license keys provide by Treehouse Software:

1. tcVISION Mainframe Batch Integration (MBI) for AWS – Bring Your Own License (Customers must contact Treehouse Software for license key to run the software): This AMI does not require an active connection to the mainframe, because the existing backup and recovery files from the mainframe, such as Db2 imagecopies, z/OS archive log files or IMS Unloads, Adabas unload, and PLOG files can be used.

2. tcVISION Distributed Database Integration (DDI) for AWS – Pay as You Go on AWS: This AMI license installation includes security keys for Amazon S3 access and a license to use one source (PostgreSQL, Oracle, MySQL, MariaDB; MSSQL on Windows OS only) and one target (AWS S3, AWS Aurora, RDS – PostgreSQL, Oracle, MySQL, MariaDB; MSSQL on Windows OS only).

3. tcVISION Enterprise Change Data Capture (CDC) Integration for AWS – Bring Your Own License (Customers must contact Treehouse Software for license key to run the software): This AMI allows transfer of mainframe data to AWS targets continuously and in real-time. Using this tcVISION AMI, a customer can deploy databases globally within minutes.

About the AWS Marketplace…


The AWS Marketplace is an online software store that helps customers find, buy, and immediately start using the software and services that run on AWS.


Visit the Treehouse Software website for more information on tcVISION, or contact us to discuss your needs.