Downgrading Oracle Exadata RoCE Switches

Downgrade successfully updated Oracle Exadata RDMA over Converged Ethernet (RoCE) switches to the older RoCE switch firmware version as determined by the current Oracle Exadata release.

1. Check the current version of the Oracle Exadata RoCE switch patch.
2. Evaluate the current configuration and perform pre-downgrade checks for RoCE switches.

   rhpctl update exadata -roceswitches comma_separated_list_of_IB_nodes -image image_name 
   -client client_cluster_name -patchmgrargs "-patch_manager_arguments" 
   -patchmgrdrivingsystem patchmgr_driving_node -downgrade -eval

3. Downgrade the Oracle Exadata RoCE switch patch.

   rhpctl update exadata -roceswitches comma_separated_list_of_IB_nodes -image image_name 
   -client client_cluster_name -patchmgrargs "-patch_manager_arguments" 
   -patchmgrdrivingsystem patchmgr_driving_node -downgrade

4. Check the current version of the Oracle Exadata RoCE switch patch to make sure that the downgrade is successful.