Modernizing a mid-sized bank's processing center with Nutanix Cloud Platform

10 June 2025

A medium-sized bank that processed about 1.5 million transactions daily (up to 1500 transactions/second at peak times) faced a number of critical issues due to the traditional three-tier architecture (compute + SAN networking + storage) used for its IT infrastructure. The main challenges and problems were as follows:

  • High latency when accessing historical data and related transactions.
  • Difficulty scaling to implement new services (Apple Pay, P2P, etc.).
  • Regularity of forced downtime during infrastructure updates.
  • The need to comply with PCI DSS requirements and the difficulty of ensuring SLA > 99.99%.

To address these challenges and eliminate the problems, AM Integrator Group experts advised the bank to consider and choose a different type of architecture in its IT infrastructure. The new architecture is built as software-defined, based on the Nutanix hyperconverged platform, and combines computing power, storage, and networking in a single solution. The implementation included:

  1. Hardware: 4 Nutanix NX nodes (mid-range) in the main data center and 2 DR nodes in the remote center. Data and application replication is provided by Nutanix Xi Leap.
  2. Software:
    • AHV hypervisor (free and stable).
    • Storage: Nutanix AOS with native replication.
    • Security: Nutanix Flow for micro-segmentation.
    • Monitoring: Prism Pro for analytics and management.

The modernization process covered key stages:

  1. Migration of core processing services (authorization engine, scoring, transaction routing) to AHV.
  2. Containerization of the antifraud system through Nutanix Karbon.
  3. The implementation of the Active-DR model:with automatic switching of users and services within 15 minutes.

Results after 6 months provided:

  • Stability and performance: The combination of Data Locality, AHV and Prism provided high transaction performance and minimal latency.
  • Cost reduction: Reduced infrastructure administration costs.
  • Flexibility: Accelerated launch of new digital products such as mobile payments.
  • Security: PCI DSS compliance through micro-segmentation, encryption and reliable backup.

The modernization of the bank's processing center based on Nutanix Cloud Platform has once again proved the effectiveness of hyperconverged solutions, including for the financial sector. The bank not only overcame the technical limitations of the old infrastructure, but also received tools to quickly adapt to the requirements of the modern digital environment.

Qualified architects of AM Integrator Group will always provide professional advice on the selection and design, and engineers will provide reliable support for the implementation of private or hybrid cloud IT infrastructure for enterprises in various sectors of the economy.

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