Understanding high availability for IBM OpenPages as a Service

High availabilityThe ability of a service or workload to withstand failures and continue providing processing capability according to some predefined service level. For services, availability is defined in the Service Level Agreement. Availability includes both planned and unplanned events, such as maintenance, 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.

IBM OpenPages® as a Service is a highly available, multi-tenant, regional service. The service workload is distributed across multiple availability zones in a region, so single data center outage does not impact overall service availability. Data that is stored in IBM OpenPages is replicated over the availability zones synchronously and is replicated to separate region asynchronously.

In addition to synchronous data replication across zones in one region, the underlying relational database takes full snapshot backup daily automatically and it is stored to regional S3 storage. The daily snapshot backup is kept for up to 35 days along with transaction logs, which is utilized by the service instance restore operation with point-in-time data. For more information on the restore operation, see Backing up and restoring the database and configuration settings for IBM OpenPages.