Dell PowerVault ME5 Series Administrator's Guide

Updating controller-module firmware

In a dual-controller system, both controllers should run the same firmware version. Storage systems in a replication set should run the same or compatible firmware versions. You can update the firmware in each controller module by loading a firmware file obtained from the enclosure vendor.

If you have a dual-controller system and the Partner Firmware Update (PFU) option is enabled, when you update one controller the system automatically updates the partner controller. If PFU is disabled, after updating firmware on one controller you must log into the IP address of the partner controller and perform this firmware update on that controller also.

For best results, ensure the storage system is in a healthy state before starting firmware update.