Disk firmware upgrades  Disk firmware downloads for offline upgrades are a service provider procedure only, and support personnel should read and follow applicable instructions. The online disk firmware upgrade (ODFU) wizard checks for disk firmware update recommendations automatically; this allows you to download the latest disk firmware from Powerlink and install it without disruption to storage system operation. Only a CX4 storage system that is running FLARE 04.30 or later supports ODFU.
what is the procedure to upgrade the firmware on all the drives of a cx380? the tech said I need to power and shutdown all my hosts connected to the san?
upgrading firmware on drives