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Radius

Spotinst Radius provides availability, durability and cost-efficiency for DB instances using Amazon RDS

Helping corporations to grow with confidence on top of AWS

When you provision an Amazon RDS instance, Spotinst Radius creates a standby instance and synchronously replicates the primary DB data to a different Availability Zone. In case of an instance failure (AWS hardware or storage failure), Radius performs an automatic fail-over to the standby instance so that you can resume database operations immediately.

Top Features

Multi-AZ Deployments Using Spot Instances

Run your standby DB Instances on Spot and save up to 90% of your RDS & EC2 costs. Instead of running both your Primary and Standby RDS Instances using On-Demand pricing, Spotinst Radius enables you to run your Slave Instances on Spot by creating a standby instance and synchronously replicates the primary DB data to a different Availability Zone. In case of an instance failure (AWS hardware or storage failure), Radius performs an automatic fail-over to the standby instance so that you can resume database operations immediately.

Read-Replicas Using Spot Instances

Radius for MySQL and Postgres SQL allows to use built-in replication called “Read Replicas” to scale beyond the capacity constraints of a single DB instance. Read-heavy database workloads are perfect fit to achieve enhanced performance using read replicas. It is also a no-brainer to run those Read Replicas servers on EC2 Spot Instances to dramatically reduce costs while increasing performance.

  • Backups

    Unlike single-AZ RDS deployments, where your I/O actually is suspended, Radius takes backup from the standby server.

  • Fail-over Conditions

    Radius detects and automatically recovers from the most common failure scenarios:

    • Loss of heartbeat in primary database

    • Loss of network connectivity

    • Compute failure

    • Storage failure

    • Manual user request for fail-over

Setup Process

1

Provision a Single AZ RDS DB Instance using the AWS management console

2

Provision a Standby Instance using Spotinst Radius

3

Get a database endpoint from Radius

4

Upon fail-over, Radius will perform a fail-over automatically to the Spot Standby DB Instance

5

After a successful fail-over, Radius will revert back to an On-Demand Instance to maintain high availability

Radius keeps your DB endpoint the same so your applications can resume database operations without the need for manual intervention. Upon successful fail-over, Radius tries to fall over again back to your primary database server so that your environment will keep running on on-demand/reserved instances as the primary, while the standby instance will run on EC2 Spot Instance.

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