Before you install Replication Plug-in for Containers, complete the following pre-installation requirements.
| Components | Requirements |
|---|---|
| Kubernetes cluster | Verify that there are different Kubernetes clusters in the primary and secondary sites. A single cluster across the primary and secondary sites is not supported. |
| Replication target | Using Storage Plug-in for Containers, create a PersistentVolumeClaim (PVC). |
| etcd | Verify that the etcd is not replicated by Replication Plug-in for Containers. |
| Kubernetes cluster management | Verify that the declarative cluster is supported and imperative cluster is not supported. |
| The number of Kubernetes clusters | Primary: One Kubernetes
cluster Secondary: One Kubernetes cluster |
| The number of storage systems | Primary: One storage system Secondary: One storage system |
| The number of replicas created from a PVC | One (Do not create any remote copy pair manually with the PVC that will be used for Replication Plug-in for Containers.) |
| The number of Pods attached to a PVC | One If the PVC is controlled by Replication Plug-in for Containers, you can create only one Pod per PVC. |
| Used program product | Universal Replicator and TrueCopy |
| Application redundancy (Applications using PVs created by Storage Plug-in for Containers) |
The application redundancy is Active-Passive. The secondary site is activated only when a failure occurs in the primary site. |
| Inter-site connection |
Requires all connections listed below to setup replications:
|