Shutting down the node

You must shut down the node or nodes in the chassis prior to moving them to the new chassis.

Steps

  1. If you have a cluster with more than two nodes, check the health and Epsilon from advanced mode: cluster show -epsilon *

    If the cluster is not in quorum or a node that is not the impaired node shows false for eligibility and health, correct the issue before proceeding to the next step.

    If Epsilon resides in the impaired node:

    1. Remove Epsilon from the impaired node: cluster modify -node impaired_node -epsilon false
    2. Assign Epsilon to a healthy node in the cluster: cluster modify -node healthy_node -epsilon true
  2. If your system has two controller modules, disable the HA pair.
    If your system is running clustered ONTAP with... Then...
    Two nodes in the cluster cluster ha modify -configured falsestorage failover modify -node node0 -enabled false
    More than two nodes in the cluster storage failover modify -node node0 -enabled false
  3. Halt the node, pressing y when you are prompted to confirm the halt: system node halt -node node_name
    The confirmation message looks like the following:
    Warning: Rebooting or halting node
    "node_name" in an HA-enabled cluster may result in client disruption or data access
    failure. To ensure continuity of service, use the "storage
    failover takeover" command. Are you sure you want to halt node
    "node_name"? {y|n}:
    Attention: You must perform a clean system shutdown before replacing the chassis to avoid losing unwritten data in the nonvolatile memory (NVMEM). If the NVMEM LED is flashing, there is content in the NVMEM that has not been saved to disk. You need to reboot the node and start from the beginning of this procedure. If repeated attempts to cleanly shut down the node fail, be aware that you might lose any data that was not saved to disk.
  4. Repeat the preceding step for the second controller module, if present.
    To avoid a possible quorum error message in an HA pair configuration, halt the second node: system node halt -node second_node_name -ignore-quorum-warnings true