Presentation

Exoscale Database as a Service, or DBaaS is a database as a service product with a set of data services you can trigger on demand.

Features

DBaaS comes with:

  • A managed data engine with a high SLA
  • A selection of plans with upscale and downscale possibilities as well as redundancy options
  • Automatic backup policies
  • Lifecycle management

Terminology

  • DBaaS: Database as a Service.
  • Service: a deployment of a DBaaS type.
  • Plan: a combination of resources based on Exoscale Compute instance types and of data infrastructure features (replicas, backup frequency, et cetera).
  • Fork: a new DBaaS service created (or “forked”) from an existing, running service. A fork enables use cases for upgrades, data protection, disaster recovery, and other scenarios.

Architecture

Database services are launched on dedicated instances, but are not directly accessible to the end user or visible in your instance list. The database services are therefore not shared - they run on one or many machines specifically deployed for your organization, depending on your plan.

Service availability

6 services are currently available. These services along with their short names are:

  • Managed PostgreSQL: pg
  • Managed Apache Kafka: kafka
  • Managed Mysql: mysql
  • Managed OpenSearch: os
  • Exoscale for Redis®: redis
  • Managed Grafana: grafana

Geographical availability

DBaaS is available in all current Exoscale zones.

Service level agreement

All plans come with a SLA regarding the availability of the data service:

  • all Hobbyist and Startup plans: 99.95%
  • Business and higher plans: 99.99%

Known limitations of DBaaS

Some features are currently unavailable in DBaaS and need to be taken into account while working with it.

CLI/API support and partial Portal support

To access the full set of features for DBaas, you can use the CLI and API. The Portal has partial coverage at this time. We are continually working to bring full DBaaS functionality to the Portal, as well.

Service integration

Integrating DBaaS services with one another is not currently possible.

Multi-zone setup and geo-replication

All services that support replication from their protocol can be deployed with geo-redundancy from the CLI with the integration capabilities. Read more about this feature in the specifics of each service.

However, forks are possible across zones, which enables you to start a copy of a service from one zone in another zone.

Data migration

Migrating from an existing non-Exoscale DBaaS is possible only from the Portal and is applicable to SQL based services only.

General information about Exoscale DBaaS plans

The naming convention for plans indicates the resources of each single instance or cluster of instances powering your service:

  • Service type: pg, kafka, redis,...
  • Plan: hobbyist-1, business-32, premium-9x-16

Where:

Hobbyist, startup, business, premium keywords differentiate the redundancy and data protection mechanism used for each service. See the product pages to learn more about the available plans and their specifications.

The optional first digit indicates the number of nodes in the cluster for distributed systems.

The last 1, 2, 4, ...32, ...225 indicates the memory in GB associated with each node in the plan. These are indexed on the existing compute instance types available at Exoscale, so a 32 GB is a general purpose Huge instance.

For example, an Apache Kafka service on a premium-9x-16 plan is a Kafka cluster with 9 nodes, each with 16 GB RAM. The other details regarding storage, backup, number of connections, versions and plugins are available in the tables or documentation.

Restrictions and authorizations

Some of the DBaaS plans require an authorization. You can list the plans that are currently available to your organization with the command exo dbaas show <SERVICE TYPE> --plans.