Colocation vs Cloud: Key Considerations
Deciding between colocation and cloud computing for your infrastructure needs is an important strategic decision. While both approaches have their advantages, there are some key factors to weigh when determining which model makes the most sense for your organization. In this article, we’ll explore the core differences between colocation and cloud to help inform your decision-making.
What is Colocation?
Colocation involves housing your servers and networking equipment in a dedicated space within a data center facility. With colocation, you own and manage your gear while renting space, power, cooling, and physical security from the data center provider.
Some key traits of colocation include:
- You own the hardware – Servers, routers, switches, etc., are purchased and owned by you.
- You manage the infrastructure – Your IT team configures, manages, patches, and monitors all equipment. The colo provider only manages data center infrastructure.
- You pay for space, power, and cooling – Rent is based on rack space, power consumption, and cooling needs.
- High uptime and physical security – Reputable colors provide redundant power, cooling, and security.
- Direct high-speed connections – Low-latency direct connections to cloud services and network providers.
- Scalability – Add rack space and power as computing needs grow.
Colocation offers enterprises physical control over infrastructure while leveraging data center services and connections. It appeals to organizations that need bare-metal performance, elevated security, low latency, or other benefits of on-prem equipment.
What is Cloud Computing?
Cloud computing provides on-demand computing, storage, and services via the Internet. Rather than buying hardware, you rent virtualized resources delivered by cloud providers like AWS, Google Cloud, or Microsoft Azure.
Common traits of cloud computing:
- No hardware to manage: The cloud provider owns and maintains all physical infrastructure.
- Consumption-based model: You pay only for the amount of resources consumed.
- Elastic scalability: Resources can scale up and down on demand to meet changing needs.
- Self-service provisioning: You can spin up new resources quickly via self-service.
- Distributed availability: Resources are distributed across data centers to provide very high uptime.
- Managed services: Many managed platforms and services are only available via the cloud.
Cloud computing offers agile, flexible, and low-cost access to computing with no infrastructure management. It’s best suited to workloads that need to scale rapidly or leverage cloud-native tech.
Key Differences Between Colocation and Cloud
While colocation and cloud both meet data processing and storage needs, they differ in some fundamental ways that impact which use cases they are best suited for.
Ownership and Control
A core difference is who owns and controls the physical hardware. With colocation, you purchase and own the servers, switches, and routers. You have root access and total control to configure and manage the infrastructure as you see fit. Cloud platforms consist of shared hardware controlled entirely by the provider. You must architect within the constraints and services offered by the provider.
Flexibility and Scalability
The on-demand nature of cloud computing offers immense flexibility. You can instantly spin up new VMs, scale resources up and down, and access additional services with a few clicks. Colocation requires planning and lead time to procure new servers. It would help if you also predicted future capacity needs rather than scaling reactively. However, colocation offers ultimate control over the infrastructure environment.
Cloud follows a pay-as-you-go model based on actual usage, making costs proportional and predictable. Colocation requires upfront capital expenditure on hardware along with fixed monthly costs for space and power. However, running high-utilization workloads in colocation can provide lower overall TCO compared to the accumulating usage fees of the cloud.
Performance and Latency
Colocation provides bare metal performance with direct high-speed links between servers. This allows colocation to offer faster response times and lower latency versus the virtualized environment and remote access of cloud platforms. Critical real-time applications may require the performance of colo infrastructure.
Security and Compliance
Physical access and control over infrastructure enables colocation customers to implement customized security measures. Private colocation cages even provide physical isolation. Cloud security is managed entirely by the provider and may not meet an organization’s strict compliance requirements. Colocation offers more flexibility to achieve the security and compliance needed for sensitive workloads.
When to Choose Colocation Over Cloud
While cloud adoption continues accelerating, colocation still offers benefits that make it the preferable choice for certain use cases:
- Applications requiring ultra-low latency, such as high-frequency trading, VoIP, gaming, etc.
- Workloads with intense computation needs are not well suited to shared cloud infrastructure.
- Integration with on-prem infrastructure or legacy systems not cloud-ready
- Extreme data security needs such as government, healthcare, and financial organizations
- Compliance requirements that public cloud providers cannot meet
- Need for customized network or hardware configurations unavailable in the cloud
- Cost reduction for high-utilization workloads running 24/7/365
- Long-term stability and single solution for varied workloads
When Cloud is Better Than Colocation
The agility, flexibility, and managed services of cloud computing offer advantages for these types of use cases:
- Spiky workloads with uneven computing needs and traffic spikes
- Short-term projects with rapidly changing infrastructure needs
- Development, testing, and QA environments that need to spin up and down quickly
- Organizations lacking in-house infrastructure management expertise
- Utilizing advanced services like machine learning, server less, etc., only offered by the cloud
- Global applications requiring worldwide distribution and reach
- Disaster recovery and backup solutions taking advantage of cloud object storage
- Startups and businesses need to avoid large capital expenditures.
- Modern applications designed specifically for cloud architecture and scale
Key Takeaways When Comparing Colocation and Cloud
- There is no one-size-fits-all answer to selecting between colocation and cloud. The optimal choice depends on application requirements, corporate needs, and use case specifics.
- Colocation offers physical control over infrastructure, constant performance, and high security and can provide lower TCO for some workloads.
- Cloud provides flexibility, agility, consumption-based billing, and managed services but less control and performance.
- Mixing models allows the matching of specific solutions to each application. Hybrid and multi-cloud approaches combine the benefits of both.
- Assessing all pros, cons, and organizational needs is crucial before committing long-term to a strategic infrastructure decision.
By understanding the core differences in ownership, control, performance, and use cases between colocation and cloud infrastructure models, enterprises can make informed decisions matching the solution to their requirements. With careful analysis of needs and priorities, organizations can develop an effective strategy leveraging the optimal benefits of colocation and cloud.