AIK Bank: Defining and implementing a tailored Disaster Recovery solution on the cloud  

AIK Bank, one of the leading banks in Serbia, is focused on building long-term relationships based on security and trust. The Bank’s management is aware that every minute their IT systems are down could result in losing revenue, hindering productivity and the bank’s reputation with its clients. To prevent this, AIK Bank decided to enhance its existing Disaster Recovery (DR) solution, which was hosted on-premise.  

Goals  

  • Implement a reliable disaster recovery solution to ensure business continuity  
  • Modernise the existing platform without changing the technologies and topology in use 
  • Introduce more advanced disaster recovery with a lower total cost of ownership (TCO) 

Results 

  • A reliable and optimal Disaster Recovery solution aligned with existing processes and technologies  
  • 40% lower infrastructure costs compared to the in-house solution 
  • Flexible solution and high client satisfaction from both technical and business perspectives  

The beginning of collaboration with AIK Bank 

Throughout its operations, AIK Bank underwent several IT equipment refresh cycles and regulatory adjustments. The bank sought a reliable partner with the experience, expertise, and capacity to deliver the best IT solutions.  

In February 2017, during our initial presentation to AIK Bank, we proposed two key initiatives that would form the foundation for the bank’s digital transformation: 

  • Infrastructure enhancement through DR system consolidation and cloud hosting 
  • Outsourcing workstations and service desk using VDI (Virtual Desktop Infrastructure) technology 

During this initial phase, it was agreed to further refine the solutions to tailor it to the client’s specific circumstances – namely, the complex acquisition process of Alpha Bank, which had a completely different IT infrastructure approach to AIK Bank.  

At the time, AIK Bank already had an operational DR site. However, the Bank faced challenges, such as insufficient storage capacity and scalability limitations

Challenges and requirements 

Some of the main challenges included: 

  • Inadequate data center and the burden of maintaining the DR system in-house 
  • Limited resources for expanding IT infrastructure 
  • Outdated equipment: in 2018, the hardware was reaching end-of-life (VMware 5), requiring an upgrade to VMware 6 
  • Alpha Bank, acquired by AIK Bank,  had no virtualisation and relied on numerous outdated physical servers 
  • A critical requirement was preserving Alpha Bank’s historical data, which was stored both locally in Serbia and in Athens.  

Requirements 

AIK Bank needed a scalable and cost-effective DR solution that would meet the following requirements:  

  • Fully integrate the IT systems of both banks (AIK Bank and Alpha Bank)  
  • The solution had to be highly scalable and reliable, as well as cost-effective  
  • It was necessary to optimise software licensing  
  • DR modernisation had to be completed in line with existing technologies  

Defining and implementing the optimal DR solution 

The project was divided into three phases: 

  • Analysis and recommendations  
  • Selection of the optimal solution and migration planning 
  • Implementation and testing of the new DR system

Most time was spent on analysis and designing the most efficient solution to ensure all stakeholders understood its benefits. During this time, AIK’s IT team demonstrated their expertise and commitment to delivering complex IT projects and adopting new technologies, working closely with Mainstream’s experts.  

Project Phases: 

In the first phase, Mainstream analysed the IT infrastructure of both banks and presented its conclusions and proposals within a detailed business case. 

Based on the analysis, the optimal disaster recovery solution was proposed, hosted in the Mainstream Enterprise Cloud environment, as a means to improve IT infrastructure and optimize costs. The Mainstream Enterprise Cloud was selected because it offered higher reliability, scalablity and cost-efficiency compared to the on-premise solution.   

After the project was presented to and accepted by the management, it moved into the migration and implementation phase. 

  • System migration was completed in line with a detailed plan and took only four months. 
  • Implementation included with a number of challenges, most of which were directly related to the ongoing merger activities of Alpha bank with AIK Bank, as well as the technical migration that had to be carried out without significantly disrupting the banks’ regular business operations. 
  • The externalisation project required significant time: documentation needed to be prepared for the regulator, and AIK Bank’s IT team had to complete a large number of tasks within a short timeframe.

Results achieved: 

The Disaster Recovery solution we implemented proved to be ideal for the specific case of AIK Bank, both from a technical and a cost-efficiency perspective. 

 
A comparative analysis between the in-house solution and the Mainstream-hosted cloud solution showed that the five-year cumulative savings for the entire project amount to 42%

The project also enabled the Bank to realise numerous other benefits, such as: 

IT Operations 

  • Proactive support and early problem detection and resolution 
  • Single point of contact for DR infrastructure issues  
  • The ability to focus more on the IT activities that bring greater business value  
  • More predictable IT costs 
  • Flexibility for future growth 

Business Continuity 

  • Guaranteed availability and service delivery levels in line with the signed SLA 
  • Isolated infrastructure in a TIER 3 data center in Serbia  
  • Rapid recovery in the event of partial or complete data center loss 
  • Higher levels of service availability  

Data Security 

Since the Bank stores confidential and sensitive data, ensuring the highest level of security was essential. Thanks to cross-replication between data centers, the Bank ensured continuous data security even in the even to one data center failure.  

24×7 Support  

Mainstream took over responsibility for the IT infrastructure and all configurations, providing advanced support to the Bank with guaranteed, 24/7 system availability.  


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