Chapter 6. Mirroring data for hybrid and Multicloud buckets


You can use the simplified process of the Multicloud Object Gateway (MCG) to span data across cloud providers and clusters. Before you create a bucket class that reflects the data management policy and mirroring, you must add a backing storage that can be used by the MCG. For information, see Chapter 4, Chapter 3, Adding storage resources for hybrid or Multicloud.

You can set up mirroring data by using the OpenShift UI, YAML or MCG command-line interface.

See the following sections:

Prerequisites

  • Ensure to download Multicloud Object Gateway (MCG) command-line interface.

Procedure

  1. From the Multicloud Object Gateway (MCG) command-line interface, run the following command to create a bucket class with a mirroring policy:

    $ noobaa bucketclass create placement-bucketclass mirror-to-aws --backingstores=azure-resource,aws-resource --placement Mirror
  2. Set the newly created bucket class to a new bucket claim to generate a new bucket that will be mirrored between two locations:

    $ noobaa obc create  mirrored-bucket --bucketclass=mirror-to-aws
  1. Apply the following YAML. This YAML is a hybrid example that mirrors data between local Ceph storage and AWS:

    apiVersion: noobaa.io/v1alpha1
    kind: BucketClass
    metadata:
      labels:
        app: noobaa
      name: <bucket-class-name>
      namespace: openshift-storage
    spec:
      placementPolicy:
        tiers:
        - backingStores:
          - <backing-store-1>
          - <backing-store-2>
          placement: Mirror
  2. Add the following lines to your standard Object Bucket Claim (OBC):

    additionalConfig:
      bucketclass: mirror-to-aws

    For more information about OBCs, see Chapter 9, Object Bucket Claim.

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