Installing AFM Disaster Recovery

The primary and the secondary are two separate operational clusters that are separated from each other through LAN or WAN. AFM-DR functions are available in Advanced Edition, Data Management Edition, Developer Edition, or IBM Storage Scale Erasure Code Edition. All nodes in both the primary and secondary clusters must be running the Advanced Edition, Data Management Edition, Developer Edition, or Erasure Code Edition.

The NFS version 3 and 4 or native NSD protocol can be used for communication. Similar to AFM filesets, gateway nodes and NFS servers must be planned on the primary and secondary clusters. Gateway nodes and NFS servers must preferably be configured in the primary and secondary clusters before you create filesets and start applications. If you are planning to use native NSD protocol, the primary file system must be remote mounted on all the gateway nodes in the secondary cluster.

Note: While you upgrade AFM-DR to IBM Storage Scale 4.2.2 or later, the primary cluster must be upgraded before you upgrade the secondary cluster.