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HAAKRONIMY
AcronymsAbbreviations everyone uses and few explain

HA

High Availability

Designing a system to remain accessible even if individual components fail. Uses redundancy, monitoring, failover, replication, and recovery procedures.

Why it matters

Ensures that the failure of a single component does not bring down the service — backup servers take over traffic before users notice anything.

What's missing without it

Without redundancy, a single disk, process, or network failure can bring down the entire service — and failures always happen at the worst possible time.

When it is used

Used for services where downtime is costly: ad portals, e-commerce stores, email marketing systems.

How we use it

A second API instance and a database replica minimize downtime after a single server failure.

Numbers worth knowing

Acronyms in data

26%

Prognozowany udział w pełni elektrycznych pojazdów (BEV, bez hybryd) w europejskim parku samochodowym do 2035 roku, w porównaniu z 4% w 2025 r.

BCG2035Europe

88%

Meta podaje, że ponad 88% z 137 000 usuniętych reklam oszukańczych w Polsce zostało wykrytych automatycznie przed zgłoszeniem.

Meta09/2026Poland

2 500 000 000 000 USD

Prognozowane światowe wydatki na AI w 2026 roku.

Gartner2026global

Figures from the same field — collected in our market data base.

HA — what is it? | Mediarun Glossary