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Veritas InfoScale™ for Kubernetes Environments 8.0.220 - Linux

Last Published: 2023-10-16

Product(s): InfoScale & Storage Foundation (8.0.220)

Platform: Linux

Configuring Disaster Recovery Plan

With a Disaster Recovery Plan (DR Plan) you can enable disaster recovery for a particular namespace. For a more granular control, you can selectively label components in the namespace and create a DR Plan with namespace and labels. A DR Plan cannot span multiple namespaces. DR Plan must be created only on the primary cluster. DR Plan is automatically created and synchronized on all peer clusters after its creation on the primary cluster. Migration and other operations on the namespace can be triggered by updating certain attributes.

Note:

Clusterwide(across namespaces) RBAC permissions are granted to the service account of infoscale-dr-manager pod as required. As a Storage Administrator, ensure that a non-privileged user does not have oc exec permissions on the infoscale-dr-manager pod.

Edit /YAML/DR/SampleDisasterRecoveryPlan.yaml as under to create DR plan for application components in a given namespace.

apiVersion: infoscale.veritas.com/v1
kind: DisasterRecoveryPlan
metadata:
  name: test-disaster-recovery-plan
spec:
  # Name of cluster that should be treated as primary for this DR plan
  primaryCluster: <ID of the cluster you want to back up>
  # (optional) Set Force To True If Peer Cluster(S) Is Not Reachable 
  # And Local Cluster Needs To Perform Takeover
  force: false
  # List Of Member Cluster(s) Where This DRPlan Can FailOver
  # Sequence Of MemberCluster Specified In This List Denotes Relative 
  # Preference Of Member Cluster(s)
  # Must Be Subset Of Global Cluster Membership
  preferredClusterList: ["<ID of the cluster you want to back up>",
                    "<ID of the cluster where you want to back up>"]
  # Kind Of Corrective Action In Case Of Disaster
  # default value will be "Manual" if not specified
  clusterFailOverPolicy: Manual
  # Specify Namespace And Optionally Labels to decide what all 
  #  needs to be part of the disaster recovery plan
  selector:
    namespace: sample
    labels:
      app: sise
  # (optional) Pointer To Manage Storage Replication
  dataReplicationPointer: test-datareplication
  # (optional) Pointer To Manage DNS Endpoints
  dnsPointer: test-dns

Note:

dataReplicationPointer is needed only if you have stateful applications that require data replication across peer clusters.

Run the following command on the bastion node
oc apply -f /YAML/DR/SampleDisasterRecoveryPlan.yaml

Wait till the command run is successful and the following message appears.

disasterrecoveryplan.infoscale.veritas.com/
                  <Name of Disaster recovery plan> created

Run the following command on the bastion node
oc get drplan

Review the output similar to the following

NAME     PREFERREDCLUSTERLIST SPEC.PRIMARYCLUSTER 
<Name of("ID of the cluster  "ID of cluster   
Disaster you want "           where you want  
recovery  to back up          to back up")      
plan>

STATUS.PRIMARYCLUSTER DATAREPLICATION DNS
ID of the current     ID of the current
cluster               cluster