Adding a storage cluster peer

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Add a storage cluster peer for the rbd-mirror daemon to discover its peer storage cluster. For example, to add the site-a storage cluster as a peer to the site-b storage cluster, then follow this procedure from the client node in the site-b storage cluster.

Prerequisites

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  • A running IBM Storage Ceph cluster.

  • Root-level access to the node.

Procedure

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  • Register the peer to the pool:

    Syntax 

    rbd --cluster CLUSTER_NAME mirror pool peer add POOL_NAME PEER_CLIENT_NAME@PEER_CLUSTER_NAME -n CLIENT_NAME

    Example 

    [root@rbd-client ~]# rbd --cluster site-b mirror pool peer add data client.site-a@site-a -n client.site-b