Shadow Device

Description

This is specific to cloud environments. Here namespace storage-engine can be configured to use extremely high-performance cloud instance attached local SSDs that are ephemeral. Writes will also be duplicated to another network-attached shadow device for persistence in case the cloud instance terminates.

For more details, visit configuration of shadow devices.

Create a local provisioner and local storage class

Follow the instructions here to create a local volume provisioner and appropriate storage class.

Create the namespace configuration

Storage specific config for aerospike cluster CR file.

  storage:
    volumes:
      - storageClass: ssd
        path: /opt/aerospike
        volumeMode: filesystem
        sizeInGB: 1
      - path: /opt/aerospike/data
        storageClass: ssd
        volumeMode: filesystem
        sizeInGB: 3
      - path: /dev/nvme0n1
        storageClass: local-ssd
        volumeMode: block
        sizeInGB: 5
      - path: /dev/sdf
        storageClass: ssd
        volumeMode: block
        sizeInGB: 5
  .
  .
  .
  aerospikeConfig:
    service:
      feature-key-file: /etc/aerospike/secret/features.conf
    security:
      enable-security: true
    namespaces:
      - name: test
        memory-size: 3000000000
        replication-factor: 2
        storage-engine:
          type: device
          devices:
            - /dev/nvme0n1 /dev/sdf

Get full CR file here.

Deploy the cluster

Follow the instructions here to deploy this configuration.