Backup and disaster recovery

A backup is a duplicate of files, systems or an entire IT infrastructure, created to protect data against loss. It lets you restore everything that was saved in the event of a system failure, user error, hardware damage or a hacker attack — documents, databases, device configurations and mail archives.

Backups protect against events that destroy data permanently: fire, theft, power failure or hardware damage. They are also the answer to ransomware, because they let you recover encrypted files without negotiating with criminals. And they keep the business running — cutting downtime after a failure from weeks to hours.

Both, and we run them for our clients at scale. Veeam covers VMware and Hyper-V, physical machines, laptops and Microsoft 365, and offers immutable copies; Proxmox Backup Server is the natural fit for Proxmox and Linux environments, with incremental-forever backups, deduplication and client-side encryption. In many environments we combine them — the choice follows your infrastructure, not our preference.

Keep three copies of your data, on two different types of media, with at least one copy off-site. We add a fourth element: zero errors, confirmed by regular restore tests — a copy you have never restored is only a promise.

• Full — a complete copy of all data: the simplest to restore, but the largest and slowest.
• Incremental — only what changed since the previous backup: fast and small, which is why modern platforms use it by default.
• Differential — everything that changed since the last full backup: bigger than incremental, but needs fewer files for a restore.

In practice we combine them: periodic full copies with incremental backups in between, plus deduplication so repeated data is stored only once.

As often as your RPO requires — that is, how much data you can afford to lose. Operational data such as orders or invoices is usually backed up daily, critical databases several times a day, and archives weekly or monthly.

With immutable or client-side encrypted copies, separate credentials for the backup system, copies stored outside the production environment and verification jobs that detect corruption. Even if the attacker gains admin rights in your environment, the copies stay intact.

A single file or mailbox item usually within minutes. A whole server or environment depends on the amount of data, the connection and the agreed RTO — which is exactly what we measure during restore tests, so the number in your plan is real.

Yes. We back up VPS and dedicated servers from other providers, workstations and other cloud services — the minimum storage differs for each case and is shown in the engagement models above.

In our data centers in Poland, with the option of copies in a second region or on S3. Data is encrypted, and with Proxmox Backup Server the encryption happens on your side — we hold copies we cannot read.

Yes. Both regulations require business continuity, backups and tested recovery procedures. Our policies, restore test reports and documentation can be used as evidence — see NIS2 and DORA.

You avoid buying and maintaining your own backup hardware, get an off-site copy by default, and the whole process is automated and monitored — which removes the most common failure of on-premise backup: nobody checks whether the jobs still run.