Security
Availability that can be measured and defended
High availability, redundancy of critical components and business continuity plans — so that outages are an exception, not a regular occurrence.
A critical system outage costs money, customers and reputation. The amount of damage depends on one factor: how long it takes to restore. That time is controlled by architecture, not luck.
Outage protection isn't a single technology — it's a layered strategy: redundant hardware, backup systems, backup power, failover mechanisms, and documented procedures for people, not just machines.
Redundant power supply
UPS, backup sources, dual power supply for servers — extra minutes for a controlled shutdown or switching to a backup environment.
Clustering and failover
Active/passive or active/active configuration for critical services — single node failure is transparent to users.
Load balancing
Spread the load across multiple servers — both higher availability and better peak performance.
Geographic redundancy
For the most critical systems, a second location (disaster recovery site) or a cloud region in the EU.
BCP — Business Continuity Plan
The Business Continuity Plan defines how the business operates during an outage: who does what, what systems are prioritized, what are the temporary backup processes.
DRP — recovery plan
Disaster Recovery Plan is the technical counterpart of BCP — step-by-step infrastructure recovery from a backup state.
SLA and availability — about numbers
99% availability sounds good. In practice, this is 87 hours of downtime per year. Availability of 99.9% is 8.7 hours. 99.99% is 52 minutes.
We approach each system individually:
- Production web server — usually 99.9% target
- Internal HR application — 99% can be enough
- Real-time ordering system — 99.99% requires a full HA stack
This does not mean that every system needs an expensive HA architecture. It means that together we define realistic goals and the corresponding architecture.
Regular tests of plans
A recovery plan that has never been tested is just a document. We simulate outage scenarios once a year — the team knows what to do and the plan is up to date.
Let's talk it through
Write to us — we will get back within one business day with a concrete next step.