The Hitachi Replication Plug-in for Containers (HRPC) is a component of Hitachi Container Storage Interface (CSI) for Block storage, also referred to as the Hitachi Storage Plug-in for Containers (HSPC) .
Replication Plug-in for Containers automates storage volume replication between two different Kubernetes clusters and storage systems located at different locations.
HRPC enables the creation of replicated Persistent Volumes (PVs) by associating a replication Custom Resource (CR) with a PersistentVolumeClaim (PVC). The current release supports both asynchronous replication for Universal Replicator and synchronous replication for TrueCopy®.
Traditional storage system replication deployments require tight communication among storage administrators, container users, and Kubernetes administrators. With Replication Plug-in for Containers, container users and Kubernetes administrators can take a self-service approach to create replications using the Kubernetes command-line tool, kubectl.
The following diagram illustrates the replication of volumes using Replication Plug-in for Containers and Storage Plug-in for Containers .