Dell PowerFlex 4.5.x Administration Guide

Return the node to operation

To return the node to operation, perform the following steps:

1. Power on the node and wait for the node to start booting.
   The operating system boots up for Linux operating systems. For Linux nodes, all PowerFlex processes start up automatically.
2. For an ESXi node, perform the following:
   1. From the vSphere Web Client, ensure that the node is displayed as on and connected in both Hosts and Clusters view.
   2. Right-click the node and select Exit Maintenance Mode.
3. After the node is up, perform the following checks in PowerFlex Manager:
   1. In the left pane, click Alerts. In the right pane, make sure that no SDS disconnect message appears.
      Verify that the SDCs are healthy, and if the node was an MDM cluster member, verify that the MDM cluster is no longer degraded.
4. On the menu bar, click Block > SDSs..
5. In the right pane, select the relevant SDS and click More Actions > Exit Maintenance Mode.
6. In the Exit SDS <name> from Maintenance Mode dialog box, click Exit Maintenance Mode.
7. In the confirmation message dialog box, click Dismiss.
8. Wait for the rebuild/rebalance operations to finish.
   The node is now operational and application I/O can be started on the node. For ESXi nodes, you can migrate VMs to the node.