When a company needs to host its servers, applications or backups, the question comes up: own datacenter/colocation or the cloud? Each option has its place; here are the differences, no jargon.
Datacenter and colocation
With colocation you bring your equipment to a datacenter that provides power, cooling, security and connectivity. You have full control of the hardware, ideal when there are specific requirements or prior investments. See Colocation.
Cloud (virtual servers)
In the cloud you use resources on demand, with no equipment to buy: scale in minutes and pay for what you use. Ideal to grow fast or handle variable load. See Virtual Servers.
Which one fits
- Colocation: hardware control, stable loads, specific requirements.
- Cloud: flexibility, fast scaling, lower upfront investment.
- Hybrid: many companies combine both and add backup and recovery.
Explore all options in Datacenter and Cloud.
The cost behaves differently
The most important difference is not technical, it is accounting. Colocation is capital: you buy the servers, depreciate them over three to five years and pay for space, power and connectivity. Cloud is operating expense: you pay monthly for what you use and buy nothing.
That changes the maths depending on your situation:
- If your load is steady and predictable and the hardware is already bought, colocation is usually cheaper over the medium term.
- If your load swings a lot or you are just starting, cloud avoids buying capacity for a peak that happens twice a year.
- If you need to grow fast without capital, cloud wins by definition: no purchase, no lead time.
One thing people forget when comparing: in colocation the cost of replacement is yours. Disks, power supplies and fans fail, and by year four the hardware starts asking for a refresh.
Latency and where your users are
For internal applications, and especially for voice, distance matters. A server in Costa Rica serving users in Costa Rica behaves differently from one on another continent even at the same bandwidth: what you feel is latency and jitter, not megabits.
If your operation includes telephony, a contact center or remote desktops, how close the datacenter sits is a serious criterion. For a public website with worldwide visitors it matters far less.
Hybrid is the normal answer
In practice few companies pick just one. The usual split is by criterion:
- In colocation: anything with compliance requirements, specialised hardware or licences tied to the machine.
- In the cloud: anything that needs elasticity, test environments and everything that gets spun up and torn down often.
- Outside both: the backups. A backup living in the same place as the original is not a backup. See backup and recovery.
Deciding without overthinking it
- Steady load and hardware already owned: colocation.
- Frequent growing and shrinking: cloud.
- Location or compliance requirements: colocation, or local cloud.
- No infrastructure team of your own: managed cloud.
- Operation depends on real-time voice: prioritise proximity, whichever model you choose.
TelHarbor runs both and helps you split the load: see colocation, virtual servers and NOC monitoring.
Frequently asked questions
Is the cloud secure?
Yes, with encryption, backups and monitoring. Security depends more on configuration than on location.
Can I migrate later?
Yes. You can start with one and migrate or combine as your operation evolves.
Can I start in the cloud and move to colocation later?
Yes, and it is a common path: start in the cloud while the load is uncertain, then move to owned hardware once consumption is predictable.
In colocation, who administers the servers?
It depends on the contract. It can be entirely yours, or managed, where the provider handles the operating system, patching and monitoring.
What about power and connectivity?
A serious datacenter has redundant power with UPS and a generator, plus more than one internet provider. That is precisely what you are paying for.
Where should backups live?
Outside the site where the original data lives, in a different physical location. If an incident hits the main site, the backup has to survive it.