Comparison: operating models

Cloud or your own server on site?

Both approaches have their place, and in most businesses the real answer ends up being a mix of the two. Here's what the decision actually comes down to.

The short answer

Cloud or an on-site server — which is the better choice?

There's no universally correct answer, because the two models are strong in different ways. Cloud services take maintenance and scaling off your hands but make daily operations dependent on a stable internet connection. An on-site server keeps critical applications and large volumes of data in the building, at the cost of hardware, cooling and someone to look after it. In practice, most of the small and medium-sized businesses NDVDL works with run a hybrid: some services in the cloud, some systems local. What split makes sense depends on the specific software involved, the internet connection, and how badly an outage would actually hit the business.

The essentials in four points

  • A production business running entirely on cloud services stops working the moment the internet connection fails — an on-site server only partly protects against that.
  • Some specialised software, particularly systems tied to machinery or production lines, has to run on a local server and simply cannot move to the cloud.
  • The most common setup in practice is a hybrid: a local server for critical systems and cloud services for everything else.
  • Who is responsible when something breaks — your own team or the provider — needs to be settled before the decision, not once something has already failed.
01

Three models, no single right answer

Fully cloud-based, a fully on-site server, or a hybrid of the two — these are the three options businesses actually choose between. A pure cloud setup shifts servers, maintenance and part of the security responsibility to the provider, and can be accessed from almost anywhere. An on-site server stays entirely under your own control, but needs space, power, cooling and someone responsible for keeping it running.

In practice, few businesses sit cleanly at either extreme. Most of the businesses we work with run a local server for whatever has to stay on site, and cloud services for email, accounting or collaboration tools. That mix isn't a compromise born of indecision — it's usually the technically sound answer.

  • Fully cloud: no server room of your own, maintenance sits with the provider
  • On-site server: full control, full responsibility
  • Hybrid: critical systems local, everything else in the cloud
  • The split follows the specific applications in use, not a general preference
02

What happens when the line goes down

A business running entirely on cloud services depends on a working internet connection. If it fails, inventory management, point-of-sale or production control all become unreachable, even if the provider's servers are running perfectly. For an office, that's annoying. For a production business, it means the line stops.

An on-site server only partly solves this. Internal systems keep running during an internet outage, but as soon as email, remote access or cloud software are part of the picture, part of the business still grinds to a halt. Anyone who genuinely wants to be independent of the connection needs a redundant internet line — regardless of whether the servers sit on site or in the cloud.

  • Pure cloud setups stop completely when the line goes down
  • Local servers keep internal systems running, but not email or cloud access
  • A second, independent internet connection reduces the risk regardless of the operating model
  • Production businesses should work through this scenario before deciding, not after
03

Where the data sits, and what has to run locally

Data sovereignty and server location matter more in many businesses than the first quote lets on. Some cloud providers store data outside the EU, or on servers whose exact location is buried in the fine print. For businesses handling sensitive customer or staff data, that's a question to settle before signing, not after.

Then there's software that's technically tied to a local server — control software for machinery running in real time, for example, or systems that depend on a specific, older server environment. That kind of software can't simply move to the cloud without putting the vendor relationship or the equipment itself at risk. Large files also feel the distance to a cloud server: CAD drawings or video material are noticeably slower to access over the internet than over a server in the same room.

  • Settle server location and data sovereignty before signing, not after
  • Machine control and older specialised software often has to stay local
  • Large files such as CAD or video data are noticeably faster to access locally
  • Not every application can move to the cloud without friction
04

Backup, responsibility, and getting out

An on-site server isn't a backup — it's just where the data normally lives. Anyone working locally needs an additional copy stored off-site, for example in the cloud, so a fire, theft or water damage doesn't take the backup down with the original. Anyone working in the cloud needs the reverse: an independent copy of the most important data, separate from the provider. Backup in both directions belongs to all three models.

Just as important is who's responsible when something fails. With an on-site server, that's your own team or contracted IT provider; with the cloud, it's the provider — with response times that belong in the contract, not something you ask about only once things have already gone wrong. Anyone planning to leave a cloud provider should also know upfront in what format their data comes back, and how long that takes.

  • Backup in both directions: an off-site copy for a local server, an independent copy for the cloud
  • Put responsibility for outages in writing before signing
  • Provider response times belong in the contract, not the fine print
  • Settle the data hand-back format and exit terms before choosing a provider

Which model actually fits

Pure cloud is the right call for businesses with no locally-bound software and a stable internet connection — the effort of running your own server usually isn't worth it. An on-site server becomes necessary the moment machinery, real-time control or older specialised software has to run locally. For most small and medium-sized businesses, a hybrid is the sensible answer: critical systems local, everything else in the cloud, with a clear agreement on backup and responsibility for outages. If you're not sure which category your business falls into, work that out before deciding, not after.

How does it look at your site?

We look at your situation and say honestly which option fits — including when that is the smaller one.

Server room

Not sure which model fits your business?

Tell us about your systems and requirements — we'll look at your situation before making a recommendation.

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What else we get asked about this

Related terms

VirtualizationHigh Availability3-2-1 Backup RuleRTO (Recovery Time Objective)

Related terms

Not inherently — security depends on how a system is configured, not on where the server sits. A poorly maintained on-site server is less secure than a properly run cloud environment, and the reverse is just as true. What matters is the firewall, access rights, updates and backup, whether the server is in your building or with a provider.

Internal systems that don't need internet access keep running. Anything relying on email, cloud software or remote access stops working despite the on-site server, for as long as the connection is down. An on-site server only makes a business partly independent of its internet connection.

That depends on the provider, and it should be settled before signing, not after. Some providers store data exclusively within the EU, others across multiple regions worldwide — the exact server location is in the contract documents, and for sensitive data it's a decision-critical detail.

Yes, that's the most common setup in practice. Critical or locally-bound systems run on an on-site server, while email, collaboration or accounting run through cloud services. NDVDL plans that split around the software actually in use, not a one-size-fits-all rule.

That depends on the contract, which is worth reading before choosing a provider, not once you're trying to leave. What matters is the format your data comes back in, how long the hand-back takes, and whether you can still access it during that time.

Not sure which model fits your business?

Tell us about your systems and requirements — we'll look at your situation before making a recommendation.

Request a first consultation+43 800 007075