What Do You Mean By High Availability (HA)?

Technology CommunityCategory: Software ArchitectureWhat Do You Mean By High Availability (HA)?
VietMX Staff asked 3 years ago

Availability means the ability of the application user to access the system, If a user cannot access the application, it is assumed unavailable. High Availability means the application will be available, without interruption. Using redundant server nodes with clustering is a common way to achieve higher level of availability in web applications.

Availability is commonly expressed as a percentage of uptime in a given year.