Deleting a Cluster Export Services node from an IBM Storage Scale cluster

Use this information to delete a Cluster Export Services (CES) node from an IBM Storage Scale cluster.

  1. On a node that you do not want to delete from the cluster, issue the following command to suspend the node:
    mmces node suspend –N <Node_to_Delete> --stop
  2. On the node that you want to delete from the cluster, issue the following commands to stop the CES services:
    mmces service stop nfs
    mmces service stop smb
    mmces service stop s3

    In this example, it is assumed that protocols are enabled on the node that you want to delete from the cluster.

  3. Unmount IBM Storage Scale file system from the node.
    mmumount all
  4. On a node other than the one you want to delete from the cluster, issue the following command to disable CES on the node:
    mmchnode –N <Node_to_Delete> --ces-disable
  5. On a node other than the one you want to delete from the cluster, issue the following command to shut down GPFS on the node:
    mmshutdown –N <Node_to_Delete>
  6. On a node other than the one you want to delete from the cluster, issue the following command to delete the node from the cluster:
    mmdelnode –N <Node_to_Delete>
  7. If you disabled file audit logging in step 1, you can enable it by following the instructions in Enabling file audit logging on a file system.