Micro data centers: An architectural choice for business resilience in Ukraine

Challenges for IT infrastructure in Ukraine: Why traditional approaches are insufficient

The full-scale war in Ukraine has exposed critical vulnerabilities in centralized IT systems. Widespread power outages caused by attacks on energy infrastructure and disruptions in internet provider services can lead to prolonged business downtime ¹. Centralized data centers face risks from physical threats, necessitating a re-evaluation of disaster recovery and business continuity planning (DR/BCP) strategies.

Reliance on a single point of failure, whether an on-premises data center or a cloud provider, creates significant risks. While cloud solutions offer geographical distribution, their effectiveness for local operations can be diminished by high latency and unstable communication channels. In such conditions, where the availability of local data and applications is critical, traditional approaches need to be supplemented with more resilient and distributed architectures.

Specific risks for centralized data centers in wartime conditions include physical attacks, logistics issues for maintenance, and dependence on large energy hubs, making them vulnerable to widespread failures.

Micro data centers as a response to local challenges: Architectural advantages

A micro data center (micro-DC) is a compact, autonomous, and fully integrated IT infrastructure that includes servers, storage systems, network equipment, as well as power, cooling, and monitoring systems, all housed within a single secure enclosure or rack ². These solutions are designed for deployment closer to the point of data consumption, enabling local processing and storage of information.

Key architectural advantages of micro-DCs for Ukrainian businesses include:

Autonomy: Built-in uninterruptible power supply (UPS) systems and the ability to connect to generators ensure operation even in the absence of centralized electricity. Integrated cooling systems maintain optimal temperature.
Reduced latency: Placing computing resources close to users or equipment significantly reduces latency, which is critical for real-time applications and operational systems.
Rapid deployment: Micro-DCs are pre-integrated and tested solutions, allowing for quick deployment at any site with minimal infrastructure requirements.
Increased resilience: A distributed network of micro-DCs creates a fault-tolerant architecture where the failure of one node does not lead to the shutdown of the entire system. Each micro-DC can function as an independent unit, ensuring the continuity of local operations.

Theoretically, a micro-DC can ensure the continuous operation of medical equipment in a hospital, financial terminals in a bank, or telecommunication nodes in remote regions, even if the centralized infrastructure is offline.

Key use cases for micro-DCs in Ukrainian businesses

Micro data centers are an optimal solution for businesses with distributed structures or critical operations requiring local data processing:

Remote offices and branches: Ensuring continuous operation of local applications, file servers, IP telephony, and video surveillance systems, regardless of the central communication status. For example, a bank branch can continue serving customers even if communication with the head office is lost.
Manufacturing facilities: Supporting industrial automation systems (IAS), SCADA systems, and MES systems that require minimal latency and high availability for equipment control and management. A micro-DC can be used to maintain critical production lines in a metallurgical plant.
Retail networks: Guaranteeing the operation of point-of-sale (POS) systems, inventory management systems, and CRM systems at sales locations, allowing operations to continue even if connection to the central office is lost. For example, a supermarket can continue sales and inventory management.
Critical infrastructure: Ensuring the functioning of security, monitoring, and management systems at critical infrastructure facilities where any downtime is unacceptable. For example, a power substation can maintain local monitoring and control.

Challenges and trade-offs: Managing and costing distributed infrastructure

Deploying a network of micro data centers, despite significant resilience advantages, also presents certain challenges. One of the main ones is the complexity of managing numerous, geographically dispersed sites. This requires the implementation of effective remote monitoring and management systems, as well as configuration standardization.

Increased operational expenditures (OpEx) due to the need to support a greater number of physical locations. Initial capital expenditures (CapEx) for acquiring and deploying multiple micro-DCs may be higher than for a single centralized data center of similar aggregate capacity ³. However, these costs should be evaluated in the context of potential business losses from downtime.

The need for qualified on-site personnel for maintenance can be minimized through remote management capabilities and the modular design of micro-DCs, which simplifies component replacement. However, local resources may still be required for physical security and basic maintenance at remote sites.

Effective management of distributed infrastructure requires specialists in remote monitoring and management, as well as basic IT skills for on-site personnel. Necessary tools include centralized monitoring systems, deployment automation, and configuration management.

Distributed infrastructure increases the number of potential entry points for cyberattacks. Each micro-DC must be protected according to corporate security standards, including physical security, network security, and threat monitoring systems.

Pros and cons of micro data centers

Pros: Autonomy, reduced latency, rapid deployment, increased resilience, local operational continuity.
Cons: Complexity of managing distributed infrastructure, potentially higher CapEx/OpEx, need to ensure physical and cybersecurity for each point.

Framework for assessing the feasibility of micro data center deployment

To make an informed decision regarding the deployment of micro data centers, IT infrastructure leaders are recommended to use the following framework:

Assessment criteria:

Criticality of business functions requiring local continuity: Identify which business processes are vital and cannot tolerate downtime, along with their requirements for recovery time objective (RTO) and recovery point objective (RPO).
Geographical distribution of sites and their distance from the central data center: Evaluate how remote the sites are and whether the costs of local infrastructure are justified in terms of reducing latency and increasing availability.
Reliability and stability of power supply at remote sites: Analyze the history of power outages and the availability of alternative power sources (generators, UPS).
Reliability of internet connection and availability of alternative communication channels: Assess the stability of primary communication channels and the possibility of using backup options (e.g., satellite internet, 4G/5G).
Latency requirements for critical applications: Determine if latency is a key factor for the performance and functioning of specific applications.
Availability or feasibility of deploying physical security at remote sites: Assess the risks of physical access and the ability to ensure an adequate level of protection for the micro-DC.
Capabilities for remote monitoring and management of IT infrastructure: Ensure that existing or planned tools allow for effective management of distributed infrastructure.
Budget constraints and expected return on investment (ROI): Conduct a detailed cost-benefit analysis, considering both direct costs and potential losses from downtime.
Requirements for scalability and flexibility of the solution: Evaluate how easily the solution can be scaled or modified in the future.

Step-by-step decision-making algorithm:

Identify critical business processes and their RTO/RPO requirements.
Conduct an audit of existing infrastructure and assess risks for each site.
Evaluate the reliability of power supply and internet connection at remote sites.
Determine latency requirements for key applications.
Assess the possibilities for ensuring physical and cybersecurity.
Perform a cost-benefit analysis (CBA) for potential micro-DC deployment scenarios.
Develop an implementation plan and a strategy for managing the distributed infrastructure.
Make a decision based on the data obtained and strategic priorities.

Cost-benefit analysis template:

Category	Costs (CapEx/OpEx)	Benefits (risk reduction, efficiency increase)
Equipment acquisition	Cost of micro-DC, servers, storage systems, network equipment	Reduced RTO/RPO, increased availability of critical systems
Deployment and installation	Transportation, installation, configuration costs	Rapid recovery after incidents, local autonomy
Operation and maintenance	Power consumption, cooling, software licensing, support	Reduced losses from downtime, increased productivity
Management and monitoring	Cost of management systems, staff training	Centralized control, proactive problem detection
Security	Physical protection, cybersecurity, auditing	Data protection, compliance with regulatory requirements

Softline IT assists in planning and implementing server infrastructure solutions: from auditing the current state to an agreed-upon plan for changes.

Softline IT helps teams plan and implement server infrastructure, from an assessment of the current environment to an agreed change plan.