# Managed MariaDB — RDEM Systems

> Managed MariaDB database service by RDEM Systems SAS, with replication powered by Signal18 Replication Manager, multi-datacenter Galera Cluster, daily SQL backup and sovereign hosting in France (Equinix, Paris region).

## Offering

- **Managed MariaDB with Signal18**: Galera Cluster across 3 DCs, French expert DBA, automated failover — from EUR 75/month
- **Signal18 Replication Manager**: automatic failover, third-party monitoring, daily SQL backup, automatic rejoin
- **Galera Cluster**: synchronous replication across 3 Equinix datacenters in the Paris region
- **Sovereign hosting**: data 100% in France, BGP network AS206014, native GDPR compliance
- **Operator**: RDEM Systems SAS — https://www.rdem-systems.com/en/

## Main Pages

- Home: https://mariadb.rdem-systems.com/en
- Comparison: Managed MariaDB vs AWS RDS vs Self-hosted: https://mariadb.rdem-systems.com/en/comparison
- Data Sovereignty for MariaDB: https://mariadb.rdem-systems.com/en/sovereignty
- Replication Manager — Signal18 automatic failover: https://mariadb.rdem-systems.com/en/replication-manager

## Comparison: AWS RDS vs RDEM Systems vs Self-hosted

| Criteria | RDEM Systems | AWS RDS | Self-hosted |
|---|---|---|---|
| Data location | France (Equinix, Paris region) | Ireland / Frankfurt | Your choice |
| Expert DBA included | Yes (RDEM team + Signal18 escalation) | No (generic support) | Must recruit |
| Automated failover | Yes (Signal18 Replication Manager) | Multi-AZ (slow switchover) | Self-configured |
| Galera Cluster (3 DC) | Yes, synchronous replication | Not available | Self-managed |
| GDPR compliance | Native (hosted in France) | Complex (contractual clauses) | Depends on infrastructure |
| Price (16G RAM / 4 CPU) | EUR 275/month all-inclusive | ~USD 350-500/month | Server + DBA to recruit |
| On-premise available | Yes, management in your DCs | No (cloud only) | Yes, but without support |

## Replication Manager — Signal18

- Automated failover: failure detection and automatic switchover to replica
- Third-party monitoring instance: external arbiter outside the cluster, no split-brain
- Daily SQL backup: full dump on the replica, standard format restorable anywhere
- Replication monitoring: continuous lag, thread status and data consistency monitoring
- Automatic rejoin: resynchronization and reintegration of the failed node
- Open source & auditable: free software maintained by Signal18 — https://signal18.io/

## Data Sovereignty

- 100% French hosting (Equinix datacenters, Paris region)
- Autonomous BGP network AS206014 operated by RDEM Systems
- Native GDPR compliance — no transatlantic transfers
- MariaDB open source — no proprietary vendor dependency
- Reversible infrastructure — standard formats, free export

## SLA and Guarantees

- **Availability**: 99.5% (Standard 2 DC), 99.9% (Galera Cluster 3 DC)
- **DBA Support**: Ticket within 4h (business hours), emergency intervention within 1h (critical incidents)
- **Backup**: Daily automatic backup with 30-day minimum retention
- **RPO**: 24h (Standard), 0 (Galera Cluster synchronous replication)
- **RTO**: < 4h (Standard), < 30 seconds (Galera Cluster automatic failover)
- **Monitoring**: 24/7 surveillance of replication, lag, and performance
- **Technical escalation**: Direct access to Signal18 team for complex issues

## Positioning

- Sovereign alternative to AWS RDS, Azure SQL, Google Cloud SQL
- French expert DBA included (not generic support)
- Technology partnership with Signal18 (Replication Manager publisher)
- Transparent pricing, no vendor lock-in
- Own BGP network AS206014, peering France-IX/AMS-IX/DE-CIX/LINX

## RDEM Systems Ecosystem

- Corporate website: https://www.rdem-systems.com/en/ — llms.txt: https://www.rdem-systems.com/en/llms.txt
- Managed servers: https://managed-services.rdem-systems.com/
- Managed Proxmox: https://proxmox.rdem-systems.com/
- PBS backup: https://nimbus.rdem-systems.com/
- BGP network: https://as206014.rdem-systems.com/
- NTP Stratum 1: https://ntp.rdem-systems.com/
- Contact: https://rdv.rdem-systems.com/richard/30min