Restore file export configuration

Use the following steps on the secondary cluster to fail over when the primary cluster fails in an IBM Spectrum Scale™ cluster with protocols.

1. On the secondary cluster, after the primary cluster has failed, use the following command.

   mmcesdr secondary failover --file-config --restore

   The system displays output similar to the following:

   Performing step 1/4, saving current NFS configuration to restore after failback.
   Successfully completed step 1/4, saving current NFS configuration to restore after failback.
   Performing step 2/4, failover of secondary filesets to primary filesets.
   Successfully completed step 2/4, failover of secondary filesets to primary filesets.
   Performing step 3/4, protocol configuration/exports restore.
   Successfully completed step 3/4, protocol configuration/exports restore.
   Performing step 4/4, create/verify NFS AFM DR transport exports.
   Successfully completed step 4/4, create/verify NFS AFM DR transport exports.
   
   ================================================================================
   = If all steps completed successfully, please remove and then re-create file
   = authentication on the DR cluster.
   = Once this is complete, Protocol Cluster Failover will be complete.
   ================================================================================

2. Remove the file authentication on the secondary cluster after failover and then add back the file authentication before failover is considered to be complete and client operations can resume, but point to the secondary cluster.