Glossary

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Glossary / Evaluation and implementation guide

High Availability Systems

High availability (HA) is the practice of designing infrastructure for near-continuous uptime, typically measured as a percentage of time the service is reachable. It uses redundancy, failover, and maintenance windows to minimize downtime.

In marketing, it sets expectations for lead capture forms, routing services, and event pipelines that must stay online.

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A practical example

Label: example. Your team promises sales that routed leads arrive within minutes. If your routing platform advertises 99.9% availability, that allows roughly eight hours of downtime a year, so you plan alerting around that budget.

What to evaluate before investing

  • Ask what the SLA percentage covers: only the core platform, or also integrations and API endpoints your routing depends on?
  • Request the vendor's historical uptime record and how credits or remedies are applied when the SLA is missed.
  • Check how planned maintenance is announced and whether failover is automatic or requires operator action.

Limitations and tradeoffs

High availability is a design goal across infrastructure, not a guarantee within a single failure event; even 99.99% allows some downtime, and SLA credits rarely compensate for lost leads.

Plan your next step with MeshLine

Connect this decision to your automation, organic marketing and customer lifecycle management. In a MeshLine demo, discuss your existing tools, the scope you need and how to measure the result.

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