# Technical Resilience

FundApps' platform's technical resilience is built to address multiple adverse scenarios and relies on high availability and disaster recovery capabilities.

#### Adverse Scenarios

These scenarios are:

* Single or multiple data centres (but not all data centres) fail within an AWS region;
* Data loss or database corruption;
* Breaking changes;
* Insufficient capacity;
* Misconfigurations.

#### High Availability

High availability is achieved through:

* Highly redundant networking;
* Compute and data storage distributed across availability zones (\*) within an AWS region(Europe (Ireland)).

Furthermore, the user interface, the API, the compute, and the data storage for client positions use a multi-site active/active strategy. The data storage for client results uses a warm standby strategy.

This architecture allows an automated response to outage scenarios affecting one or more data centres within an AWS region (Europe (Ireland)).

*Availability Zones(\*) consist of one or more discrete data centres, each with redundant power, networking, and connectivity, housed in separate facilities.*

<div data-full-width="true"><figure><img src="/files/LExyaz0psU4jx9AD8fmb" alt=""><figcaption><p>FundApps' platform high availability capabilities</p></figcaption></figure></div>

#### Disaster Recovery

Disaster recovery is achieved through the use of one or several of these capabilities:

* Automated backups stored in multiple data centres across two different AWS regions (Europe (Ireland) and Europe (Frankfurt));
* Restoring data from backup to a database in the same or a different data centre within an AWS region (Europe (Ireland));
* Redeploying the last known good version of the platform's software

Our disaster recovery process is intended to meet a 4-hour RTO (Recovery Time Objective) and a 30-minute RPO (Recovery Point Objective).

These capabilities are tested every 12 months to ensure RTO and RPO can be met, and reports are available on our [policy portal](/client-portal/-LubIC9uIsME-_T0mNXu/fundapps-policies/business-continuity/bcp.md).

```mermaid
%%{init: {
    'theme': 'neutral',
    'fontFamily': 'Verdana'

}}%%
graph RL
  subgraph Ireland["AWS Europe (Ireland)"]
      CPD-E["Client positions data"]
			CRD-E["Client results data"]
  end
  subgraph Frankfurt["AWS Europe (Frankfurt)"]
		CPD-F["Client positions data"]
		CRD-F["Client results data"]
  end

CPD-E -->|Normal state: Real-time replication| CPD-F 
CPD-F -->|DR state: Restore data from backup|CPD-E


CRD-E -->|Normal state: Real-time replication| CRD-F

CRD-F -->|DR state: Restore data from backup| CRD-E


linkStyle 0 stroke:green
linkStyle 1 stroke:red
linkStyle 2 stroke:green
linkStyle 3 stroke:red

style Ireland fill:#d2fadd,stroke:#d2fadd
style Frankfurt fill:#ff8e7d,stroke:#ff8e7d
style CPD-E fill:#24b34c,stroke:#24b34c,color:#ffffff
style CPD-F fill:#cc412d,stroke:#cc412d,color:#ffffff
style CRD-E fill:#24b34c,stroke:#24b34c,color:#ffffff
style CRD-F fill:#cc412d,stroke:#cc412d,color:#ffffff
```

*FundApps' platform's disaster recovery capabilities*

#### **Cloud Services Strategy & Exit Position**

FundApps' platform is exclusively hosted on Amazon Web Services (AWS), operating across two regions: Ireland (eu-west-1) and Germany (eu-central-1). This is a formal strategic decision. FundApps does not support migration to alternative AWS regions or third-party cloud providers at this time. FundApps maintains contractual terms with AWS covering data protection and termination rights.

#### Continual Improvement

The existing technical environment is designed to be resilient, but there are always risks that could impact the availability of our service. These known risks are recorded on a risk register in accordance with our [risk management framework](/client-portal/-LubIC9uIsME-_T0mNXu/fundapps-policies/risk-management/index.md) and monitored for change in status. Opportunities for improvement are sought as part of the ongoing risk management process and the strategic development of the business.


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