The following has been tested against 2 SC4020 appliances and been found to be an effective method of gaining access to the appliance in a new network.
Situation: Two appliances had been moved to a new network and their management network had not been reset. Thus management through the Dell Storage Manager was not possible.
Assumptions: You need to have a console TRS cable, understanding of a terminal client to use said cable, and the admin password. If you don't have the admin password you can make a fat32 formatted disk, make a file named unlock.phy and put the contents of "unlock Admin" on the usb disk. Once that has been made put the USB drive in the controller you connect the TRS cable to. This is not necessary if you know the password for the Admin or another full admin account. You will also need the IP address, your subnet in the form of a netmask, and gateway IP address of the new network.
Process:
Open a terminal client on your com port and hit enter until you receive the login prompt.
Log in with "Admin" (this is case sensitive).
For password use your known password, if you had to unlock use "mmm" as the password.
Once the prompt has dropped to "sn#####>" use the following commands:
shellaccess developer
ifconfig inet eth0 <your IP here with your / netmask at the end>
IE: ifconfig inet eth0 192.168.0.10/24
ifconfig inet gateway <your gateway address here)
IE: ifconfig inet gateway 192.168.0.1
That's it. Your management IP address should now be able to be ping'd. After that you will need to use the Dell Storage Management Client to connect and you can change the other controller through that interface, or you can repeat the process above on the 2nd controller.
I did notice on both of my appliances that the top controller reverted back once I could get into the storage center, so double check that before changing the VIP address on the controller if its giving errors about "failed to modify object" when attempting to modify the Appliance IP.
