Data backup: local, network or cloud?

Protecting company data is one of the top priorities for any modern SME: without accessible, intact data, day-to-day operations grind to a halt. A backup plan protects against hardware failures, accidental deletions and cyberattacks, and is a practical requirement for business continuity and compliance with data protection regulations.

Local backup: control and immediate access

Local backup involves saving data on physical devices such as external hard drives, NAS (Network Attached Storage) devices or servers within your company network.

Advantages

• Immediate access to files without internet
• Faster recovery for large amounts of data compared with uploading/downloading to and from the cloud
• Full control over the data and no recurring storage costs

Disadvantages

• Risks in the event of hardware failures, theft or fire
• Requires hardware maintenance and updates
• Manual backup if not automated

Network backup (NAS / internal server)

An intermediate solution between local and cloud is using an internal server or NAS on the network, which centralises data storage within the company.

Advantages

• Fast access from multiple workstations on the company network
• Can handle internal replication and file versioning
• Allows centralised access controls and permissions

Disadvantages

• Requires technical skills to configure security and networking
• Vulnerable to local physical damage without an external copy

Cloud backup: flexibility and continuity from anywhere

Cloud backup stores data in remote data centres, managed by specialist providers. Files are synchronised automatically over the internet and replicated across redundant infrastructure to ensure maximum availability.

Advantages

• Data protected from local physical disasters (fires, flooding)
• Scalability: you can increase storage without buying hardware
• Ability to restore from anywhere and compatibility with regulations such as the GDPR/nFADP

Disadvantages

• Depends on your internet connection: uploads and downloads are slower for large volumes of data
• Recurring subscription cost, which grows with the storage used
• Requires checking that the provider complies with data protection regulations

Hybrid strategy: the most complete solution

To protect data effectively, many SMEs adopt a hybrid backup strategy that combines:

• Local backup for immediate access and recovery,
• Cloud backup for protection against catastrophic events and redundancy.

This combination means you always have at least two copies of your data on different media and one copy off-site, following the 3-2-1 rule (three copies, on two types of media, with one offsite).

Security aspects and best practice

Regardless of the type chosen, it's essential to:

• Encrypt data both locally and in the cloud to protect against unauthorised access;
• Automate backups, so you don't depend on manual intervention;
• Test recovery regularly: a backup that can't be restored is no backup at all;
• Consider cloud services with geographic redundancy, especially if you operate in sectors with high security requirements.

Cloud and Swiss data protection law (nFADP)

If your company processes personal data, compliance with the Federal Act on Data Protection (nFADP) is an important factor in choosing a backup solution too, particularly when using cloud services: it's worth checking that the provider meets data protection and retention standards in line with current regulations.

Conclusion

Every SME needs a data backup to keep working after a failure or an attack. Whether you choose a local backup, a network solution or the cloud, what matters is adopting a considered, well-documented strategy.

A hybrid strategy that combines local and cloud backup offers a higher level of protection because it brings together fast recovery and protection from physical disasters, minimising the risk of data loss.

If you don't yet have a reliable backup plan for your company, or want to improve the one you have, get in touch for a free consultation: we'll look at your infrastructure and help you implement a secure, scalable solution.