Cloud Server System Architecture
UpCloud is built on the principles of speed and reliability by employing the latest technologies and hardware. Our infrastructure provides enterprise-grade performance, security, and reliability for all cloud computing needs.
Cloud Server hosts
UpCloud's infrastructure is designed from the ground up with high availability in mind. Cloud Servers operate on dedicated compute hosts, where:
- All mission-critical components have N+1 redundancy
- Dual network connections ensure continuous connectivity
- Error-corrected memory modules prevent data corruption
- Real-time monitoring ensures optimal performance
Block storage is provided from an equally highly available and fault-tolerant storage system, designed for enterprise workloads.
Automated failover
Our automated failover system ensures business continuity:
- Instant detection of compute host failures
- Automatic transfer of Cloud Servers to healthy hosts
- Live migration capability with minimal downtime (typically just seconds)
- No data loss during transfers
Virtualisation
We employ the Linux® Kernel-based Virtual Machine (KVM) virtualisation module, which offers:
- Hardware-assisted virtualisation for optimal performance
- Bare-metal level speed for virtual machines
- Strong isolation between instances
- Proven security track record
- Extensive enterprise adoption
CPUs
Our commitment to performance includes:
- Top-of-the-range enterprise hardware in all data centres
- High-powered enterprise-grade processors
- Latest generation AMD EPYC processors
- Optimized CPU-to-memory ratios
- Regular hardware refresh cycles
Automated balancing
Our sophisticated cloud orchestration system:
- Continuously monitors host utilization
- Optimizes resource distribution in data centres
- Automatically selects the least-used hosts for new deployments
- Rebalances workloads on server restart
- Enables manual performance optimization through server restart
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