Understanding high availability for Event Notifications
High availabilityThe ability of IT services to withstand all outages and continue providing processing capability according to some predefined service level. Covered outages include both planned events, such as maintenance and backups, and unplanned events, such as software failures, hardware failures, power failures, and disasters. (HA) is a core discipline in an IT infrastructure to keep your apps up and running, even after a partial or full site failure. The main purpose of high availability is to eliminate potential points of failures in an IT infrastructure.
Responsibilities
For more information about your responsibilities when using Event Notifications, see Shared responsibilities.
What level of availability do I need?
You can achieve high availability on different levels in your IT infrastructure and within different components of your cluster. The level of availability that is correct for you depends on several factors, such as your business requirements, the service level agreements (SLAs) that you have with your customers, and the resources that you want to expend.
What level of availability does IBM Cloud offer?
The level of availability that you set up for your cluster impacts your coverage under the IBM Cloud high availability service level agreement terms.
Service level objectives (SLOs) describe the design points that the IBM Cloud services are engineered to meet. Event Notifications is designed to achieve the following availability target.
| Availability target | Target Value |
|---|---|
| Availability % | 99.99% |
The SLO is not a warranty and IBM will not issue credits for failure to meet an objective. Refer to the SLAs for commitments and credits that are issued for failure to meet any committed SLAs. For a summary of all SLOs, see IBM Cloud service level objectives.
Locations
For more information about service availability within regions and data centers, see Service and infrastructure availability by location.