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What is Data Availability?

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Data availability is the uptime of data services, infrastructure and hardware. High availability data services are achieved with reliability engineering and service management techniques that minimize failures and downtime.

Measurement

Data availability is typically measured as a percentage of uptime with services commonly offering 99.9% and greater availability.
Uptime
Downtime (monthly)
Known As
99.9%
43.8 minutes
Three Nines
99.99%
4.38 minutes
Four Nines
99.999%
26.28 seconds
Five Nines
99.9999%
2.628 seconds
Six Nines
Overview: Data Availability
Type
Data Management
Definition
The uptime of data services, infrastructure and hardware.
Related Concepts
Availability
Uptime
Reliability Engineering
Service Management
Data Management
Data Governance
Service Level Agreement
Next: Reliability

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