Dell PowerFlex 4.5.x Administration Guide

Entering and exiting service mode

PowerFlex Manager enables you to put a node in service mode when you must perform maintenance operations on the node.

1. On the menu bar, click Lifecycle > Resource Groups.
2. On the Resource Groups page, select a resource group and click View Details in the right pane.
3. Click Enter Service Mode under More Actions.
4. Select one or more nodes on the Node Lists page and click Next.

   You can only place multiple nodes in service mode simultaneously if all the nodes are in the same fault set.

   In a PowerFlex file resource group, only one node at a time can be put in service mode.

5. Specify the type of maintenance that you want to perform by selecting one of the following options:
   • Instant Maintenance Mode enables you to perform short-term maintenance that lasts less than 30 minutes. PowerFlex Manager does not migrate the data.
   • Protected Maintenance Mode enables you to perform maintenance that requires longer than 30 minutes in a safe and protected manner. When you use protected maintenance mode, PowerFlex makes a temporary copy of the data so that the cluster is fully protected from data loss. Protected maintenance mode applies only to hyperconverged and storage-only resource groups.
6. Click Finish.

   PowerFlex Manager displays a yellow warning banner at the top of the Resource Groups page. The Service Mode icon displays for the Deployment State and Overall Resource Group Health, and for the Resource Health for the selected nodes.

7. When you are ready to leave service mode, click More Actions > Exit Service Mode.