Upgrade Dell PowerFlex to v3.6.x

Preparing the node for a graceful reboot

Prepare each node to reboot in a graceful fashion by first entering the node into maintenance mode.

Ensure that you have admin rights for accessing the PowerFlex GUI. If necessary, the customer can give you the credentials.

Move all applications to a different node:
- On an ESX node that is not a cluster member, and that is not configured for HA and DRS, migrate the VMs to another ESX.
- On a Linux or a Windows node, migrate the applications (or the VMs, if the node is running a hypervisor).
  NOTE:In non-hypervisor environments, ask the customer for assistance in moving applications from the node.
Log in to the PowerFlex GUI as an admin user.
In PowerFlexBackend view, select By SDSs table view.
Figure 1. Table view toggle options
Right-click the SDS node you are rebooting, and select Enter Maintenance Mode.
In the Enter maintenance mode window, ensure that there are no errors, and then click OK.
When the operation finishes successfully, click Close.
The node's IP address appears with a wrench next to it.
Figure 2. SDS displayed in maintenance mode
On an ESX node, enter maintenance mode:
1. Log in to the vCenter via the vSphere Client or Web Client, and locate the relevant ESX IP address.
2. Select the SVM, and from the Basic Tasks pane select Shut down the virtual machine.
3. When the SVM is off, right-click the node and select Enter Maintenance Mode.
Obtain customer permission to reboot the node, and then gracefully reboot the node using the relevant API for the operating system.
NOTE:On a Linux node, no checks are required for a graceful reboot after entering the SDS into maintenance mode.