Si tratta di una banalità 🙂
You just have to download from the site https://eqlsupport.dell.com/secure/login.aspx (of course you have to have an account to login…) the package “Hard Disk Drive Firmware Update Utility v X.X” section “Recommended PS Series Hard Disk Drive Firmware”. You can download it in .zip or .tgz format if you download the .zip file you have to extract the .tgz conteined inside.
At this point connect by FTP to the management ip of the equallogic member with grpadmin credentials and copy the .tgz file in the root directory
After the upload connect in SSH to the management ip of the member and give the command “update”, at this point follow the wizard that will check the uploaded file and will offer you the list of the disks to be updated. Confirm that you want to update them and wait a few minutes for the operation to finish.
Important note: updating the disks firmware does not involve stops or disruption of the storage and volumes.