Owners Manual

NOTE: In a dual-controller module system in which PFU is enabled, the system automatically updates the firmware on a
replacement controller module.
Replacing a controller module in a single-controller module enclosure
Follow these guidelines when replacing a controller module in a single-controller module enclosure:
1. If the controller module is still operational, record the IP addresses and settings of the storage system in the System
Information Worksheet, which is located in the Dell EMC PowerVault ME4 Series Storage System Deployment Guide.
2. Use the PowerVault Manager or CLI to shut down the storage system.
3. Remove the controller module from the storage system enclosure. For instructions, see Removing a controller module from a
single-controller module enclosure on page 63.
4. Move the CompactFlash memory card from the defective controller to the replacement controller module. For instructions,
see Moving the CompactFlash memory card for a single-controller module enclosure on page 64.
5. Install the replacement controller module in the storage system enclosure and configure the replacement controller module.
For instructions, see Installing and configure a replacement controller module in a single-controller module enclosure on page
64.
Removing a controller module from a single-controller module enclosure
Perform the following steps to remove a controller module from a single-controller module enclosure:
Before you begin any procedure, see ESD precautions on page 42.
1. Shut down the storage system using PowerVault Manager or the CLI.
2. Disconnect any cables connected to the controller module.
Label each cable to facilitate re-connection to the replacement controller module.
3. Grasp the module latch between the thumb and forefinger, and squeeze the flange and handle together to release the latch
handle, and swing the latch handle out to release the controller module from its seated position.
Figure 55. Removing a controller module from an enclosure
Module removal and replacement
63