Prerequisites
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InfoScale must be installed and InfoScale pods must be configured on the clusters.
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Before proceeding with DR Manager installation, ensure that all the PVCs present in the cluster must either be in Bound state or Terminating state.
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Load balancer must be installed and configured. If you choose to install Metallb as the load balancer, steps are listed in
Installing InfoScale DR. -
Be ready with the following information for every member cluster
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GlobalClusterMembership: Virtual IP address and a port for each member cluster in GCM. This information is captured in GCM custom resource.
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Data Replication: Virtual IP address, port, netmask and network interface (NIC) required for each cluster to be specified in DataReplication CR. This information is exclusive for a DataReplication CR and is used to configure InfoScale Volume Replicator.
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Ensure that stale Custom Resources (CR) and Custom Resource Definitions (CRD) related to DR do not exist on the clusters.
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Optionally if you want to configure DNS resource,
DNS keyandDNS private key. To know how to obtain keys, see https://www.veritas.com/support/en_US/doc/129694359-129694362-0/uxrt-731_id-SF1J0175244-129694362. -
Multi-homed Bare-Metal Nodes: You must strictly define the interfaces array in the MetalLB L2Advertisement object. Limit the advertisement only to the interface connected to the OpenShift CNI bridge (usually br-ex or eno1).
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
name: vike-vvr-l2-adv
namespace: metallb-system
spec:
ipAddressPools:
<vvr-vip-pool-name>
interfaces:
br-ex # Must match the OVN-Kubernetes bridge or primary CNI interface through
which the traffic would leave.
Related information