PRIMECLUSTER Installation and Administration Guide4.6 Cloud Services

Appendix A Using the Smart Workload Recovery Feature

This part describes the workflow of the series of operations from installation to operation management of the PRIMECLUSTER system using the smart workload recovery feature provided by PRIMECLUSTER Cloud Edition.

The smart workload recovery feature is a standby-less switching feature available in AWS environments.

By linking the HA manager (RMS) of PRIMECLUSTER with the services such as serverless infrastructure and resource monitor provided in the AWS environment, you can improve the availability of business operations by switching instances not only in the case of an abnormality of an instance that can be switched by the standard HA function of the AWS environment but also in the case of a cluster application abnormality or Availability Zone (AZ) failure.

For an overview of the smart workload recovery feature, see the "PRIMECLUSTER Concept Guide".

Supported Configurations

• Network Configuration

  • Taking over the IP address between the instances using ELB

• Configurations to takeover data

  • Data takeover by launching a new instance using Amazon Machine Image (hereinafter AMI)

  • Shared data takeover by using Amazon Elastic File System (EFS)

Supported monitoring features

• Failure of the cluster application

  When a failure or a hang-up of the cluster application occurs, launch the instance in a different AZ.

• Failure of the instance

  When an abnormal outages, hangs, or panics of the instance occurs, launch the instance in a different AZ.

Prerequisites

• The instance can communicate with the API endpoint.

Conditions for the operation

• Supported cloud platform: AWS

• Supported regions: ap-northeast-1, ap-northeast-3

Cloud services required for smart workload recovery feature

The smart workload recovery feature uses the following cloud services.

• Amazon EC2

• AWS IAM

• Amazon Elastic Block Store

• Amazon CloudWatch

• Amazon CloudWatch Logs

• Amazon EventBridge

• AWS CloudTrail

• AWS Lambda

• Elastic Load Balancing (excluding CLB)

• Amazon EFS

• Amazon DynamoDB

• AWS PrivateLink

Note

• The console cannot be used in the instance in an AWS environment. Do not set the single user mode.

• For the most up-to-date information on requirements, go to our company Web site.

• The smart workload recovery feature uses AWS APIs to provide switching. For this reason, using AWS APIs to successfully interact with the cloud service is a prerequisite for the switch to work correctly.